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charset="us-ascii" Content-Transfer-Encoding: quoted-printable Support. Luyuan -----Original Message----- From: Thomas Morin [mailto:thomas.morin@orange.com] Sent: Thursday, October 22, 2015 8:31 AM To: bess@ietf.org Cc: draft-hao-bess-inter-nvo3-vpn-optionc@tools.ietf.org Subject: Poll for adoption: draft-hao-bess-inter-nvo3-vpn-optionc Hello working group, This email starts a two-week poll on adopting draft-hao-bess-inter-nvo3-vpn-optionc-03 [1] as a working group item. Please send comments to the list and state if you support adoption or not (= in the later case, please also state the reasons). This poll runs until **November 13th**. (3 weeks to account for the busy IETF week) *Coincidentally*, we are also polling for knowledge of any IPR that applies= to this draft, to ensure that IPR has been disclosed in compliance with IE= TF IPR rules (see RFCs 3979, 4879, 3669 and 5378 for more details). =3D=3D> *If* you are listed as a document author or contributor please resp= ond to this email and indicate whether or not you are aware of any relevant= IPR. The draft will not be adopted until a response has been received from each = author and contributor. If you are not listed as an author or contributor, then please explicitly r= espond only if you are aware of any IPR that has not yet been disclosed in = conformance with IETF rules. Thank you, Martin & Thomas bess chairs --_000_BY2PR0301MB0693FAF93DF714933E64325DD62D0BY2PR0301MB0693_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable
=
Support.<=
/pre>
=
Luyuan
=
 
=
-----Original Message-----<=
o:p>
=
From: Thomas Morin [mailto:=
thomas.morin@orange.com] 
=
Sent: Thursday, October 22,=
 2015 8:31 AM
=
To: bess@ietf.org
=
Cc: draft-hao-bess-inter-nv=
o3-vpn-optionc@tools.ietf.org
=
Subject: Poll for adoption:=
 draft-hao-bess-inter-nvo3-vpn-optionc
=
 
=
Hello working group,
=
 
=
This email starts a two-wee=
k poll on adopting
=
draft-hao-bess-inter-nvo3-v=
pn-optionc-03 [1] as a working group item.
=
 
=
Please send comments to the=
 list and state if you support adoption or not (in the later case, please a=
lso state the reasons).
=
 
=
This poll runs until **Nove=
mber 13th**.
=
(3 weeks to account for the=
 busy IETF week)
=
 
=
 
=
*Coincidentally*, we are al=
so polling for knowledge of any IPR that applies to this draft, to ensure t=
hat IPR has been disclosed in compliance with IETF IPR rules (see RFCs 3979=
, 4879, 3669 and 5378 for more details).
=
 
=
=3D=3D> *If* you are lis=
ted as a document author or contributor please respond to this email and in=
dicate whether or not you are aware of any relevant IPR.<=
/pre>
=
 
=
The draft will not be adopt=
ed until a response has been received from each author and contributor.
=
 
=
If you are not listed as an=
 author or contributor, then please explicitly respond only if you are awar=
e of any IPR that has not yet been disclosed in conformance with IETF rules=
.
=
 
=
Thank you,
=
 
=
Martin & Thomas
=
bess chairs
=
 
=
 
=
 
=
 
=
 
=
 
=
 
=
 
=
 

 

--_000_BY2PR0301MB0693FAF93DF714933E64325DD62D0BY2PR0301MB0693_-- From nobody Sun Nov 1 08:58:08 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id C18D21B89C7 for ; Sun, 1 Nov 2015 08:58:06 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 1.74 X-Spam-Level: * X-Spam-Status: No, score=1.74 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, CHARSET_FARAWAY_HEADER=3.2, HTML_MESSAGE=0.001, MIME_8BIT_HEADER=0.3, MIME_CHARSET_FARAWAY=2.45, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 78J8RI3Jz9d4 for ; Sun, 1 Nov 2015 08:58:04 -0800 (PST) Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [58.251.152.64]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id E130C1B89CB for ; Sun, 1 Nov 2015 08:58:02 -0800 (PST) Received: from 172.24.1.50 (EHLO nkgeml403-hub.china.huawei.com) ([172.24.1.50]) by szxrg01-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id CYG02381; Mon, 02 Nov 2015 00:56:03 +0800 (CST) Received: from NKGEML506-MBX.china.huawei.com ([169.254.3.20]) by nkgeml403-hub.china.huawei.com ([10.98.56.34]) with mapi id 14.03.0235.001; Mon, 2 Nov 2015 00:56:00 +0800 From: Lizhenbin To: "thomas.morin@orange.com" , "bess@ietfa.amsl.com" Thread-Topic: Re: [bess] Poll for adoption: draft-hao-bess-inter-nvo3-vpn-optionc Thread-Index: AdEUqPrjPZPulUYXQRu34sQ6DuKGEQAHMUvq Date: Sun, 1 Nov 2015 16:55:59 +0000 Message-ID: <5A5B4DE12C0DAC44AF501CD9A2B01A8D8CA5F547@nkgeml506-mbx.china.huawei.com> References: In-Reply-To: Accept-Language: zh-CN, en-US Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.194.185.50] Content-Type: multipart/alternative; boundary="_000_5A5B4DE12C0DAC44AF501CD9A2B01A8D8CA5F547nkgeml506mbxchi_" MIME-Version: 1.0 X-CFilter-Loop: Reflected Archived-At: Subject: [bess] =?gb2312?b?tPC4tDogUmU6ICBQb2xsIGZvciBhZG9wdGlvbjogZHJh?= =?gb2312?b?ZnQtaGFvLWJlc3MtaW50ZXItbnZvMy12cG4tb3B0aW9uYw==?= X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 01 Nov 2015 16:58:07 -0000 --_000_5A5B4DE12C0DAC44AF501CD9A2B01A8D8CA5F547nkgeml506mbxchi_ Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: base64 U3VwcG9ydCBXRyBhZG9wdGlvbi4gVGhpcyBpcyB0cnVseSB0aGUgdXNlZnVsIHdvcmsgYW5kIHdl bGwgYWNjZXB0ZWQuDQoNCg0KQmVzdCBSZWdhcmRzLA0KWmhlbmJpbihSb2JpbikNCg0KDQoNCg0K DQotLS0tLU9yaWdpbmFsIE1lc3NhZ2UtLS0tLQ0KDQpGcm9tOiBUaG9tYXMgTW9yaW4gW21haWx0 bzp0aG9tYXMubW9yaW5Ab3JhbmdlLmNvbV0NCg0KU2VudDogVGh1cnNkYXksIE9jdG9iZXIgMjIs IDIwMTUgODozMSBBTQ0KDQpUbzogYmVzc0BpZXRmLm9yZw0KDQpDYzogZHJhZnQtaGFvLWJlc3Mt aW50ZXItbnZvMy12cG4tb3B0aW9uY0B0b29scy5pZXRmLm9yZw0KDQpTdWJqZWN0OiBQb2xsIGZv ciBhZG9wdGlvbjogZHJhZnQtaGFvLWJlc3MtaW50ZXItbnZvMy12cG4tb3B0aW9uYw0KDQoNCg0K SGVsbG8gd29ya2luZyBncm91cCwNCg0KDQoNClRoaXMgZW1haWwgc3RhcnRzIGEgdHdvLXdlZWsg cG9sbCBvbiBhZG9wdGluZw0KDQpkcmFmdC1oYW8tYmVzcy1pbnRlci1udm8zLXZwbi1vcHRpb25j LTAzIFsxXSBhcyBhIHdvcmtpbmcgZ3JvdXAgaXRlbS4NCg0KDQoNClBsZWFzZSBzZW5kIGNvbW1l bnRzIHRvIHRoZSBsaXN0IGFuZCBzdGF0ZSBpZiB5b3Ugc3VwcG9ydCBhZG9wdGlvbiBvciBub3Qg KGluIHRoZSBsYXRlciBjYXNlLCBwbGVhc2UgYWxzbyBzdGF0ZSB0aGUgcmVhc29ucykuDQoNCg0K DQpUaGlzIHBvbGwgcnVucyB1bnRpbCAqKk5vdmVtYmVyIDEzdGgqKi4NCg0KKDMgd2Vla3MgdG8g YWNjb3VudCBmb3IgdGhlIGJ1c3kgSUVURiB3ZWVrKQ0KDQoNCg0KDQoNCipDb2luY2lkZW50YWxs eSosIHdlIGFyZSBhbHNvIHBvbGxpbmcgZm9yIGtub3dsZWRnZSBvZiBhbnkgSVBSIHRoYXQgYXBw bGllcyB0byB0aGlzIGRyYWZ0LCB0byBlbnN1cmUgdGhhdCBJUFIgaGFzIGJlZW4gZGlzY2xvc2Vk IGluIGNvbXBsaWFuY2Ugd2l0aCBJRVRGIElQUiBydWxlcyAoc2VlIFJGQ3MgMzk3OSwgNDg3OSwg MzY2OSBhbmQgNTM3OCBmb3IgbW9yZSBkZXRhaWxzKS4NCg0KDQoNCj09PiAqSWYqIHlvdSBhcmUg bGlzdGVkIGFzIGEgZG9jdW1lbnQgYXV0aG9yIG9yIGNvbnRyaWJ1dG9yIHBsZWFzZSByZXNwb25k IHRvIHRoaXMgZW1haWwgYW5kIGluZGljYXRlIHdoZXRoZXIgb3Igbm90IHlvdSBhcmUgYXdhcmUg b2YgYW55IHJlbGV2YW50IElQUi4NCg0KDQoNClRoZSBkcmFmdCB3aWxsIG5vdCBiZSBhZG9wdGVk IHVudGlsIGEgcmVzcG9uc2UgaGFzIGJlZW4gcmVjZWl2ZWQgZnJvbSBlYWNoIGF1dGhvciBhbmQg Y29udHJpYnV0b3IuDQoNCg0KDQpJZiB5b3UgYXJlIG5vdCBsaXN0ZWQgYXMgYW4gYXV0aG9yIG9y IGNvbnRyaWJ1dG9yLCB0aGVuIHBsZWFzZSBleHBsaWNpdGx5IHJlc3BvbmQgb25seSBpZiB5b3Ug YXJlIGF3YXJlIG9mIGFueSBJUFIgdGhhdCBoYXMgbm90IHlldCBiZWVuIGRpc2Nsb3NlZCBpbiBj b25mb3JtYW5jZSB3aXRoIElFVEYgcnVsZXMuDQoNCg0KDQpUaGFuayB5b3UsDQoNCg0KDQpNYXJ0 aW4gJiBUaG9tYXMNCg0KYmVzcyBjaGFpcnMNCg0KDQoNCg0KDQoNCg0KDQoNCg0KDQoNCg0KDQoN Cg0KDQoNCg0K --_000_5A5B4DE12C0DAC44AF501CD9A2B01A8D8CA5F547nkgeml506mbxchi_ Content-Type: text/html; charset="gb2312" Content-Transfer-Encoding: quoted-printable

Support WG adoption. = This is truly the useful work and well accepted.

 
Best Regards,
Zhenbin(Robin)
 
 
 
-----Original Messa=
ge-----
From: Thomas Morin =
[mailto:thomas.morin@orange.com] 
Sent: Thursday, Oct=
ober 22, 2015 8:31 AM
To: bess@ietf.org
Cc: draft-hao-bess-=
inter-nvo3-vpn-optionc@tools.ietf.org
Subject: Poll for a=
doption: draft-hao-bess-inter-nvo3-vpn-optionc
 
Hello working group=
,
 
This email starts a=
 two-week poll on adopting
draft-hao-bess-inte=
r-nvo3-vpn-optionc-03 [1] as a working group item.
 
Please send comment=
s to the list and state if you support adoption or not (in the later case, =
please also state the reasons).
 
This poll runs unti=
l **November 13th**.
(3 weeks to account=
 for the busy IETF week)
 
 
*Coincidentally*, w=
e are also polling for knowledge of any IPR that applies to this draft, to =
ensure that IPR has been disclosed in compliance with IETF IPR rules (see R=
FCs 3979, 4879, 3669 and 5378 for more details).
 
=3D=3D> *If* you=
 are listed as a document author or contributor please respond to this emai=
l and indicate whether or not you are aware of any relevant IPR.
 
The draft will not =
be adopted until a response has been received from each author and contribu=
tor.
 
If you are not list=
ed as an author or contributor, then please explicitly respond only if you =
are aware of any IPR that has not yet been disclosed in conformance with IE=
TF rules.
 
Thank you,
 
Martin & Thomas=
bess chairs<=
/pre>
 
 
 
 
 
 
 
 
 

 

--_000_5A5B4DE12C0DAC44AF501CD9A2B01A8D8CA5F547nkgeml506mbxchi_-- From nobody Sun Nov 1 20:57:49 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 99A491B4569 for ; Sun, 1 Nov 2015 20:57:48 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.76 X-Spam-Level: X-Spam-Status: No, score=-1.76 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, MIME_CHARSET_FARAWAY=2.45, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id UE-Wq35azCb5 for ; Sun, 1 Nov 2015 20:57:46 -0800 (PST) Received: from lhrrgout.huawei.com (lhrrgout.huawei.com [194.213.3.17]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id A465D1B4568 for ; Sun, 1 Nov 2015 20:57:45 -0800 (PST) Received: from 172.18.7.190 (EHLO lhreml403-hub.china.huawei.com) ([172.18.7.190]) by lhrrg01-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id CDJ67908; Mon, 02 Nov 2015 04:57:44 +0000 (GMT) Received: from NKGEML404-HUB.china.huawei.com (10.98.56.35) by lhreml403-hub.china.huawei.com (10.201.5.217) with Microsoft SMTP Server (TLS) id 14.3.235.1; Mon, 2 Nov 2015 04:57:43 +0000 Received: from NKGEML512-MBS.china.huawei.com ([169.254.8.187]) by nkgeml404-hub.china.huawei.com ([10.98.56.35]) with mapi id 14.03.0235.001; Mon, 2 Nov 2015 12:57:30 +0800 From: Xuxiaohu To: Quintin zhao , "bess@ietf.org" Thread-Topic: [bess] Poll for adoption: draft-hao-bess-inter-nvo3-vpn-optionc Thread-Index: AQHREWRbF06gR8C56UO49qZRkcsQnZ6CDjWagAODvWGAAMMEkP//hTUAgAJYASk= Date: Mon, 2 Nov 2015 04:57:29 +0000 Message-ID: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0CB41774@NKGEML512-MBS.china.huawei.com> References: , <4A95BA014132FF49AE685FAB4B9F17F657D78428@dfweml701-chm>, <11208E03C9803E4CB4C3D898F153D6C03910EA03@SJCEML701-CHM.china.huawei.com> In-Reply-To: <11208E03C9803E4CB4C3D898F153D6C03910EA03@SJCEML701-CHM.china.huawei.com> Accept-Language: zh-CN, en-US Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.194.185.160] Content-Type: multipart/alternative; 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charset="gb2312" Content-Transfer-Encoding: quoted-printable

How to interconnect DC VPNs with WAN VPNs in a much scalable way is very= important in the hybrid cloud scenario, especially for those SPs who opera= te both DC VPNs and WAN VPNs. Therefore, it support the WG adopti= on of this draft.

 

Best regards,

Xiaohu

 

=B7=A2=BC=FE=C8=CB: BESS [bess-bounces@iet= f.org] =B4=FA=B1=ED Quintin zhao [quintin.zhao@huawei.com]
=B7=A2=CB=CD=CA=B1=BC=E4: 2015=C4=EA11=D4=C21=C8=D5 9:06
=CA=D5=BC=FE=C8=CB: bess@ietf.org
=D6=F7=CC=E2: Re: [bess] Poll for adoption: draft-hao-bess-inter-nvo= 3-vpn-optionc

Support.  This draft is a practical solution for VPN n= etwork and NVO3 inter-connection.

 

Quintin Zhao

-----------------------------------------= --------------------------------------------

"Susan Hares" <share= s@ndzh.com> <= span style=3D"BORDER-BOTTOM: windowtext 1pt; BORDER-LEFT: windowtext 1pt; P= ADDING-BOTTOM: 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; FONT-FAMILY: inh= erit; COLOR: #666666; FONT-SIZE: 7pt; BORDER-TOP: windowtext 1pt; BORDER-RI= GHT: windowtext 1pt; PADDING-TOP: 0in">Tue, 27 October 2015 15:59 UTCShow header

Support as a co-author.   I am=
 not aware of any IPR relating to this draft. 
 
This option provides a highly scalable o=
ption  for stitching NV03 networks and MPLS/IP VPN for those devices w=
hich can provide transport-layer stitching. 
 
Sue Hares
 
-----Original Message-----
From: Thomas Morin [mailto:thomas.morin@orange.com=
] 
Sent: Thursday, October 22, 2015 11:31 A=
M
To: bess@ietf.org
Cc: draft-hao-bess-inter-=
nvo3-vpn-optionc@tools.ietf.org
Subject: Poll for adoption: draft-hao-be=
ss-inter-nvo3-vpn-optionc
 
Hello working group,
 
This email starts a two-week poll on ado=
pting
draft-hao-bess-inter-nvo3-vpn-optionc-03=
 [1] as a working group item.
 
Please send comments to the list and sta=
te if you support adoption or not (in the later case, please also state the=
 reasons).
 
This poll runs until **November 13th**.<=
/span>
(3 weeks to account for the busy IETF we=
ek)
 
 
*Coincidentally*, we are also polling fo=
r knowledge of any IPR that applies to this draft, to ensure that IPR has b=
een disclosed in compliance with IETF IPR rules (see RFCs 3979, 4879, 3669 =
and 5378 for more details).
 
=3D=3D> *If* you are listed as a docu=
ment author or contributor please respond to this email and indicate whethe=
r or not you are aware of any relevant IPR.
 
The draft will not be adopted until a re=
sponse has been received from each author and contributor.
 
If you are not listed as an author or co=
ntributor, then please explicitly respond only if you are aware of any IPR =
that has not yet been disclosed in conformance with IETF rules.
 
Thank you,
 
Martin & Thomas
bess chairs
 
[1] https://tool=
s.ietf.org/html/draft-hao-bess-inter-nvo3-vpn-optionc-03
--_000_1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0CB41774NKGEML512MBSchi_-- From nobody Sun Nov 1 21:03:58 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 1CCC11B45A6; Sun, 1 Nov 2015 21:03:57 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.76 X-Spam-Level: X-Spam-Status: No, score=-1.76 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, MIME_CHARSET_FARAWAY=2.45, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id QXZyyBE6JJ4K; Sun, 1 Nov 2015 21:03:53 -0800 (PST) Received: from lhrrgout.huawei.com (lhrrgout.huawei.com [194.213.3.17]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with 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Hi Alvaro,

 

Thanks for your detailed AD review. We will update the draft according t= o your comments soon.

 

Best regards,

Xiaohu (on behalf of all co-authors)

=B7=A2=BC=FE=C8=CB: Alvaro Retana (aretana= ) [aretana@cisco.com]
=B7=A2=CB=CD=CA=B1=BC=E4: 2015=C4=EA10=D4=C228=C8=D5 5:38
=CA=D5=BC=FE=C8=CB: draft-ietf-bess-virtual-subnet@ietf.org
=B3=AD=CB=CD: VIGOUREUX, MARTIN (MARTIN); bess-chairs@ietf.org; bess= @ietf.org
=D6=F7=CC=E2: AD Review of draft-ietf-bess-virtual-subnet-02

Dear authors:

I just finished reading this document.  

All of what is described in this document is straight forward, so much so t= hat it requires no change to existing technology, which makes me think that= users/operators have been able to do this all along.  Is that correct= ?  Is there anything special that was missing that this document brings to light?  

Being one of several possible solutions for "network virtualization overlays within and/or= between data centers", I'm wondering about the value of publishing what amounts to a = set of use cases without even discussing when their use would be suitable (= declared out of scope).  I reviewed the discussions on the lists (l3vpn/bess) and can clearly see why the Shepherd= characterized the document as "could have been considered controversi= al".  Had I reviewed the document at adoption time I probably wou= ld have ended up in the rough side of the consensus.  There's obviously no need to revisit the topic of what do to with th= is document since clearly the WG Chairs believe there is consensus to publi= sh.

I do have some other comments (below). In general some of the text could be= made easier to read (see some nits below).  I would like to see my co= mment about rfc2119 language addressed (and an update published) before sta= rting the IETF Last Call.

Thanks!

Alvaro.


Major:
  1. The= use of rfc2119 keywords is not required.  Note that in general these = keywords "MUST only be used where it is act= ually required for interoperation", but you're using them to apparentl= y express requirements w/out specific guidance or to restate what is normal= network operation .  For example:
    • In Section 3.3. (CE Host Discovery) the text reads: "PE routers SHOULD be able to discover their local CE hosts=A1=AD PE routers could accomplish local CE host discovery by=A1= =ADARP or ND=A1=ADLLDP=A1=ADVDP), or even interaction with the data center = orchestration system=A1=AD"  There is no specific mechanism manda= ted that supports the use of "SHOULD".
    • In Section 3.4. (ARP/ND Proxy): "PE routers SHOULD on= ly respond to an ARP request or Neighbor Solicitation (NS) message for a ta= rget host when it has a best route for that target host in the associated VRF and the outgoing interface of that best route i= s different from the one over which the ARP request or NS message is receiv= ed."  Isn't this how proxy ARP already works?  Am I missing = something that requires the use of "SHOULD" in this document?
    • Section = 4.3. (TTL and Traceroute) describes a limitation and then says "=A1=AD= unless special TTL processing for such case has been impleme= nted (e.g., if the source and destination addresses=A1=ADbelong to the same extended subnet, neither ingress nor egress PE routers SHOULD = decrement the TTL=A1=ADTTL of such <= /font>packet SHOULD NOT be copied into the TTL of the transport=A1=AD" =  In this case the rfc2119 keywords are used as part of an example (e.g= .)..which doesn't really support the use of "SHOULD/SHOULD NOT". =  Is the intent to specify this "special processing" in this document?  If so, why "SHOULD" and not "MUST"? &n= bsp;Algo, given that the text appears in the Limitations section, if you're= mandating the "special processing" then it wouldn't be a limitat= ion anymore..
Minor:
  1. I think that RFC4761, 4762, 4659, 5798 and 6513 should be Informatio= nal references.
  2. You first use "VS" in Section 3.6.  I'm assuming= this is related to "virtual subnet", but there's no explicit ass= ociation.
  3. Multicast.  Section 3.= 2. (Multicast) says that for "IP multicast between CE hosts of the same virtual subnet,&nb= sp;MVPN technologies [RFC6513] could be directly used without any change".  I'm assuming that you're = not referring to link-local multicast (between hosts on the same subnet) be= cause later (Section 4.2) you say that "link-local multicast traffic cannot be supported".  Please clarify in 3.2 what type o= f multicast you're talking about, and/or which you're not.
  4. Section 4.3. (TTL and = Traceroute).  What does this mean: "traceroute output would reflect the fact that these two hosts belonging to the same subnet are actua= lly connected v= ia an virtual subnet emulated by ARP proxy, rather than a normal = LAN"?  I think I know, but please be specific in the text.

Nits:
  1. Section 1. (Introduction)
    • s/commonly used in those situations/commonly used in situations
    • There are a couple of very long sentences that could be simplif= ied =A1=AA they make sense, but other reviewers may not capture the essence= .  Just a suggestion
      • OLD>
      • As a result, the traffic from a cloud use= r (i.e., a VPN user) which
      • is destined for a given server l= ocated at one data center
      • location of such extended subnet= may arrive at another data
      • center location firstly accordin= g to the subnet route, and then
      • be forwarded to the location whe= re the service is actually
      • located.  This suboptimal r= outing would obviously result in an
      • unnecessary consumption of the b= andwidth resource between data
      • centers.  Furthermore, in t= he case where the traditional VPLS
      • technology [RFC476= 1] [RFC4762] is used for data center
      • interconnect and default gateway= s of different data center
      • locations are configured within = the same virtual router
      • redundancy group, the returning = traffic from that server to the
      • cloud user may be forwarded at l= ayer2 to a default gateway
      • located at one of the remote dat= a center premises, rather than
      • the one placed at the local data= center location.  This
      • suboptimal routing would also un= necessarily consume the bandwidth
      • resource between data centers
      • NEW>
      • As a result, the traffic between a = specific user and server, in different 
      • data centers, may fir= st be routed through a third data center.
      • This suboptimal routing = would obviously result in an
      • unnecessary consumption of the bandwi= dth resource between data
      • centers.  Furthermore, in the case = where traditional VPLS
      • technology [RFC4761] [RFC4762] is used for = data center
      • interconnect, return traffic from a server may be forw= arded to a
      • default gateway located in a different data center due = to the configuration
      • in a virtual router redundancy group.  T= his
      • suboptimal routing would also unnecessarily consume the bandwi= dth
      • resource between data centers.
  2. Please be consistent on how "Layer 2" and "Layer= 3" is used..it is not consistent now.  My personal preference is= "Layer x".
  3. s/CE hosts/hosts
  4. s/ARP proxy/an ARP proxy
  5. Missing references:  "= Link Layer Discovery= Protocol (LLDP)", "VSI Discovery and Configuration Protocol (VDP)"
  6. <= /ol>
--_000_1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0CB41789NKGEML512MBSchi_-- From nobody Mon Nov 2 00:42:57 2015 Return-Path: X-Original-To: bess@ietf.org Delivered-To: bess@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 8C4F51B3503; Mon, 2 Nov 2015 00:42:55 -0800 (PST) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: IETF Secretariat To: , , X-Test-IDTracker: no X-IETF-IDTracker: 6.7.2 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <20151102084255.28153.74720.idtracker@ietfa.amsl.com> Date: Mon, 02 Nov 2015 00:42:55 -0800 Archived-At: Subject: [bess] The BESS WG has adopted draft-hao-bess-inter-nvo3-vpn-optionc X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 02 Nov 2015 08:42:56 -0000 The BESS WG has adopted draft-hao-bess-inter-nvo3-vpn-optionc (entered by Thomas Morin) The document is available at https://datatracker.ietf.org/doc/draft-hao-bess-inter-nvo3-vpn-optionc/ Comment: This poll runs until **November 13th**. From nobody Mon Nov 2 01:03:56 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A97181B3544; Mon, 2 Nov 2015 01:03:55 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.599 X-Spam-Level: X-Spam-Status: No, score=-2.599 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-0.001, UNPARSEABLE_RELAY=0.001] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id vl945Qg_jqcP; Mon, 2 Nov 2015 01:03:54 -0800 (PST) Received: from relais-inet.francetelecom.com (relais-ias92.francetelecom.com [193.251.215.92]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 214A91B3543; Mon, 2 Nov 2015 01:03:54 -0800 (PST) Received: from omfedm08.si.francetelecom.fr (unknown [xx.xx.xx.4]) by omfedm12.si.francetelecom.fr (ESMTP service) with ESMTP id 6DD0F18C1F1; Mon, 2 Nov 2015 10:03:52 +0100 (CET) Received: from Exchangemail-eme1.itn.ftgroup (unknown [10.114.1.183]) by omfedm08.si.francetelecom.fr (ESMTP service) with ESMTP id 7CA14238128; Mon, 2 Nov 2015 10:03:36 +0100 (CET) Received: from [10.193.71.12] (10.197.38.3) by PEXCVZYH02.corporate.adroot.infra.ftgroup (10.114.1.183) with Microsoft SMTP Server (TLS) id 14.3.248.2; Mon, 2 Nov 2015 10:03:36 +0100 To: IETF Secretariat , , , References: <20151102084255.28153.74720.idtracker@ietfa.amsl.com> From: Organization: Orange Message-ID: <20401_1446455032_563726F7_20401_299_6_563726E7.4020401@orange.com> Date: Mon, 2 Nov 2015 10:03:35 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: <20151102084255.28153.74720.idtracker@ietfa.amsl.com> Content-Type: text/plain; charset="utf-8"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [10.197.38.3] X-PMX-Version: 6.2.1.2478543, Antispam-Engine: 2.7.2.2107409, Antispam-Data: 2015.10.16.122716 Archived-At: Subject: Re: [bess] The BESS WG has adopted draft-hao-bess-inter-nvo3-vpn-optionc (*not yet*, in fact) X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 02 Nov 2015 09:03:55 -0000 Please ignore this bogus automated email: the document is just being called for adoption, and no decision will be taken before the call for adoption is over. -Thomas 2015-11-02, IETF Secretariat: > > The BESS WG has adopted draft-hao-bess-inter-nvo3-vpn-optionc (entered by > Thomas Morin) > > The document is available at > https://datatracker.ietf.org/doc/draft-hao-bess-inter-nvo3-vpn-optionc/ > > > Comment: > This poll runs until **November 13th**. > _________________________________________________________________________________________________________________________ Ce message et ses pieces jointes peuvent contenir des informations confidentielles ou privilegiees et ne doivent donc pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu ce message par erreur, veuillez le signaler a l'expediteur et le detruire ainsi que les pieces jointes. Les messages electroniques etant susceptibles d'alteration, Orange decline toute responsabilite si ce message a ete altere, deforme ou falsifie. Merci. This message and its attachments may contain confidential or privileged information that may be protected by law; they should not be distributed, used or copied without authorisation. If you have received this email in error, please notify the sender and delete this message and its attachments. As emails may be altered, Orange is not liable for messages that have been modified, changed or falsified. Thank you. From nobody Mon Nov 2 06:28:08 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id ED9C81B3751 for ; Mon, 2 Nov 2015 06:28:06 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -104.21 X-Spam-Level: X-Spam-Status: No, score=-104.21 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01, USER_IN_WHITELIST=-100] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id zG0dmkoiMNjD for ; Mon, 2 Nov 2015 06:28:01 -0800 (PST) Received: from mx6.zte.com.cn (mx6.zte.com.cn [95.130.199.165]) by ietfa.amsl.com (Postfix) with ESMTP id 332B71B373D for ; Mon, 2 Nov 2015 06:28:01 -0800 (PST) Received: from zte.com.cn (unknown [192.168.168.119]) by Websense Email Security Gateway with ESMTP id A3038124732ED for ; Mon, 2 Nov 2015 22:15:11 +0800 (CST) Received: from mse01.zte.com.cn (unknown [10.30.3.20]) by Websense Email Security Gateway with ESMTPS id D145CA1E4B567; Mon, 2 Nov 2015 22:27:51 +0800 (CST) Received: from notes_smtp.zte.com.cn ([10.30.1.239]) by mse01.zte.com.cn with ESMTP id tA2ERnmu093287; Mon, 2 Nov 2015 22:27:49 +0800 (GMT-8) (envelope-from chen.ran@zte.com.cn) To: bess@ietf.org MIME-Version: 1.0 X-KeepSent: C3E81342:70F6B038-48257EF1:004F31F7; type=4; name=$KeepSent X-Mailer: Lotus Notes Release 8.5.3 September 15, 2011 Message-ID: From: chen.ran@zte.com.cn Date: Mon, 2 Nov 2015 22:28:01 +0800 X-MIMETrack: Serialize by Router on notes_smtp/zte_ltd(Release 8.5.3FP6|November 21, 2013) at 2015-11-02 22:27:37, Serialize complete at 2015-11-02 22:27:37 Content-Type: multipart/alternative; boundary="=_alternative 004F73D748257EF1_=" X-MAIL: mse01.zte.com.cn tA2ERnmu093287 Archived-At: Cc: thomas.morin@orange.com Subject: Re: [bess] Poll for adoption: draft-hao-bess-inter-nvo3-vpn-option3 X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 02 Nov 2015 14:28:07 -0000 This is a multipart message in MIME format. --=_alternative 004F73D748257EF1_= Content-Type: text/plain; charset="US-ASCII" Support. Ran Chen -----Original Message----- From: Thomas Morin [mailto:thomas.morin@orange.com] Sent: Thursday, October 22, 2015 8:31 AM To: bess@ietf.org Cc: draft-hao-bess-inter-nvo3-vpn-optionc@tools.ietf.org Subject: Poll for adoption: draft-hao-bess-inter-nvo3-vpn-optionc Hello working group, This email starts a two-week poll on adopting draft-hao-bess-inter-nvo3-vpn-optionc-03 [1] as a working group item. Please send comments to the list and state if you support adoption or not (in the later case, please also state the reasons). This poll runs until **November 13th**. (3 weeks to account for the busy IETF week) *Coincidentally*, we are also polling for knowledge of any IPR that applies to this draft, to ensure that IPR has been disclosed in compliance with IETF IPR rules (see RFCs 3979, 4879, 3669 and 5378 for more details). ==> *If* you are listed as a document author or contributor please respond to this email and indicate whether or not you are aware of any relevant IPR. The draft will not be adopted until a response has been received from each author and contributor. If you are not listed as an author or contributor, then please explicitly respond only if you are aware of any IPR that has not yet been disclosed in conformance with IETF rules. Thank you, Martin & Thomas bess chairs --=_alternative 004F73D748257EF1_= Content-Type: text/html; charset="US-ASCII" Support.

Ran Chen


-----Original Message-----

From: Thomas Morin [
mailto:thomas.morin@orange.com]

Sent: Thursday, October 22, 2015 8:31 AM

To: bess@ietf.org

Cc: draft-hao-bess-inter-nvo3-vpn-optionc@tools.ietf.org

Subject: Poll for adoption: draft-hao-bess-inter-nvo3-vpn-optionc



Hello working group,



This email starts a two-week poll on adopting

draft-hao-bess-inter-nvo3-vpn-optionc-03 [1] as a working group item.



Please send comments to the list and state if you support adoption or not (in the later case, please also state the reasons).



This poll runs until **November 13th**.

(3 weeks to account for the busy IETF week)





*Coincidentally*, we are also polling for knowledge of any IPR that applies to this draft, to ensure that IPR has been disclosed in compliance with IETF IPR rules (see RFCs 3979, 4879, 3669 and 5378 for more details).



==> *If* you are listed as a document author or contributor please respond to this email and indicate whether or not you are aware of any relevant IPR.



The draft will not be adopted until a response has been received from each author and contributor.



If you are not listed as an author or contributor, then please explicitly respond only if you are aware of any IPR that has not yet been disclosed in conformance with IETF rules.



Thank you,



Martin & Thomas

bess chairs

--=_alternative 004F73D748257EF1_=-- From nobody Wed Nov 4 14:19:44 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id BCC6F1B348B for ; Wed, 4 Nov 2015 14:19:42 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.902 X-Spam-Level: X-Spam-Status: No, score=-1.902 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Xuoy9DsENMgB for ; Wed, 4 Nov 2015 14:19:41 -0800 (PST) Received: from na01-by2-obe.outbound.protection.outlook.com (mail-by2on0121.outbound.protection.outlook.com [207.46.100.121]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id E603A1B348C for ; Wed, 4 Nov 2015 14:19:40 -0800 (PST) Received: from BLUPR0501MB1715.namprd05.prod.outlook.com (10.163.120.18) by BLUPR0501MB1715.namprd05.prod.outlook.com (10.163.120.18) with Microsoft SMTP Server (TLS) id 15.1.318.15; Wed, 4 Nov 2015 22:19:39 +0000 Received: from BLUPR0501MB1715.namprd05.prod.outlook.com ([10.163.120.18]) by BLUPR0501MB1715.namprd05.prod.outlook.com ([10.163.120.18]) with mapi id 15.01.0318.003; Wed, 4 Nov 2015 22:19:39 +0000 From: "Jeffrey (Zhaohui) Zhang" To: "Ali Sajassi (sajassi)" , "ssalam@cisco.com" , "dcai@cisco.com" Thread-Topic: Questions on draft-sajassi-bess-evpn-l3vpn-multihoming Thread-Index: AdEXSXpVw5tH5HzuSpK/KH0bbWEPVg== Date: Wed, 4 Nov 2015 22:19:38 +0000 Message-ID: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=zzhang@juniper.net; x-originating-ip: [66.129.241.14] x-microsoft-exchange-diagnostics: 1; BLUPR0501MB1715; 5:jNHYrc4JEo6r+TxOfClZ72ltEfoMZnP60rhvDrv8sGWDACoIv9moyW8shf0vDKoSHJGeff8hRohiZmRuayjUNusQnptWPRN9jwIhpixxhwuq5IYAlhnDgaU3B+eESs4JdAlkyJhbnISnTwnWOK3s6A==; 24:GWk/oku1DnNQugcFxUL0pqgMBJO5QcDgdu6PW2E6KfAw19v7p+qgiqYDiP9f29Aqh8q6oqeAtRnlo9FHsabiF7rG/N9RPYM66DrCSWbb/7U=; 20:BgX8Blv7hblXUIxFhiVWGAKC4r4rc3We/ixt4FADtCXxKN7ikHruenNu++r3CLDHJJCYs9eocyifrkZ8fAj3kA== x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:;SRVR:BLUPR0501MB1715; x-microsoft-antispam-prvs: x-exchange-antispam-report-test: UriScan:; x-exchange-antispam-report-cfa-test: BCL:0; PCL:0; RULEID:(601004)(2401047)(5005006)(520078)(8121501046)(10201501046)(3002001); SRVR:BLUPR0501MB1715; BCL:0; PCL:0; RULEID:; SRVR:BLUPR0501MB1715; x-forefront-prvs: 0750463DC9 x-forefront-antispam-report: SFV:NSPM; SFS:(10019020)(6009001)(199003)(189002)(99286002)(106356001)(230783001)(5007970100001)(105586002)(66066001)(87936001)(76576001)(2201001)(101416001)(86362001)(50986999)(5004730100002)(54356999)(5001920100001)(5001960100002)(92566002)(5002640100001)(40100003)(189998001)(2501003)(10400500002)(5890100001)(122556002)(11100500001)(229853001)(5008740100001)(102836002)(81156007)(2900100001)(5003600100002)(74316001)(97736004)(5001770100001)(77096005)(33656002); DIR:OUT; SFP:1102; SCL:1; SRVR:BLUPR0501MB1715; H:BLUPR0501MB1715.namprd05.prod.outlook.com; FPR:; SPF:None; PTR:InfoNoRecords; A:1; MX:1; LANG:en; received-spf: None (protection.outlook.com: juniper.net does not designate permitted sender hosts) spamdiagnosticoutput: 1:23 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: juniper.net X-MS-Exchange-CrossTenant-originalarrivaltime: 04 Nov 2015 22:19:38.8697 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: bea78b3c-4cdb-4130-854a-1d193232e5f4 X-MS-Exchange-Transport-CrossTenantHeadersStamped: BLUPR0501MB1715 Archived-At: Cc: "bess@ietf.org" Subject: [bess] Questions on draft-sajassi-bess-evpn-l3vpn-multihoming X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 04 Nov 2015 22:19:42 -0000 Hi, I have a few questions: On the S-PEs, the pseudowires from the Access PEs are terminated onto VRFs, such that all pseudowires within a given redundancy set terminate on a single IP endpoint on the S-PEs. To achieve this, the S-PEs in a given Redundancy Group are configured with the same Anycast IP and MAC addresses on the virtual (sub)interface corresponding to the VRF termination point. Is the virtual interface (like) an IRB interface? Since the S-PEs are running in EVPN single-active redundancy mode, the S-PEs would advertise an Ethernet AD route per vES with the single-active flag set per [RFC7432]. Since only the DF S-PE has its access pseudowire in Active state, only that device would establish an eBGP session with the CE and receive control and data traffic. Will the IRB/virtual interface on a non-DF PE be up? I assume it is - even = though the PW is not active. Would the non-DF PE keeps trying to establish = the eBGP session with the CE? Would that cause issue to the session between= CE and the DF PE? The DF S-PE advertises host prefixes that it receives, from the CE over the eBGP session, to other PEs in the EVI using EVPN route type-5, with the proper ESI set. Remote PEs learn the host prefixes and associate them with the ESI, using the advertising PE as the next-hop for forwarding. Would he DF S-PE advertise other prefixes received on the eBGP session? I a= ssume so but the text only says host prefixes. Other S-PEs in the same Redundancy Group as the advertising PE will receive the same EVPN route type-5 advertisement, and will recognize the associated ESI as a locally attached vES. What is the RT that limits the routes to be imported only the PEs in the sa= me redundancy group? Is it that all PEs in the same EVPN instance will impo= rt the routes? Or is it that different redundancy groups will have differen= t EVPN instances? I assume it's latter (since we need one IRB interface for= each redundancy group?). The withdrawal of the Ethernet Segment route serves as an indication to the backup S-PE to go active (i.e. act as a backup DF), and activate its pseudowires to the Access PE. The withdrawal of the Ethernet A-D route triggers a "mass withdraw" on the remote PEs: these PEs adjust their next-hop associated with the prefixes that were originally advertised by the failed PE to point to the "backup path" per [RFC7432]. Can you elaborate the procedure for the PEs to adjust their next-hop? I don't see reference to draft-ietf-bess-evpn-vpws. Is that used at all? Thanks. Jeffrey From nobody Wed Nov 4 18:16:21 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 50ADD1A88B8 for ; Wed, 4 Nov 2015 18:16:20 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.511 X-Spam-Level: X-Spam-Status: No, score=-14.511 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_HI=-5, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 088E42Jdro-l for ; Wed, 4 Nov 2015 18:16:18 -0800 (PST) Received: from alln-iport-3.cisco.com (alln-iport-3.cisco.com [173.37.142.90]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 9E1611A6FEC for ; Wed, 4 Nov 2015 18:16:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=3433; q=dns/txt; s=iport; t=1446689778; x=1447899378; h=from:to:cc:subject:date:message-id:references: in-reply-to:content-id:content-transfer-encoding: mime-version; bh=FZurY+eFJMwcxZjRWxVnWER9UnREb6WwPmQT1NPQ3KI=; b=l7NKtdJhTY9w5iZhqVkwYVfOYkzV1CERK/bSg7KRrtjkylwoTWu7qz3L PES1vRf/xjNtNlLE9I8i2LMm/P2Sut57DpLd+gD2J7evoytMtESXps7JC cfwpK32XFYyOMhIcEZxRFlM8f/ueorYjf/l871XBIPJRbmTKr0AusqHe5 8=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: =?us-ascii?q?A0AZAgDPujpW/4sNJK1egzuBQga9cQENg?= =?us-ascii?q?V6GEgKBQTgUAQEBAQEBAYEKhDYBAQMBeRACAQhGMiUBAQQBDQUfiAcIwggBAQE?= =?us-ascii?q?BAQEBAQEBAQEBAQEBAQEBGotShCE4hF8BBIdBhhN5h3sBjSKBWoQ/licBHwEBQ?= =?us-ascii?q?oQEcoQtgQcBAQE?= X-IronPort-AV: E=Sophos;i="5.20,245,1444694400"; d="scan'208";a="204632583" Received: from alln-core-6.cisco.com ([173.36.13.139]) by alln-iport-3.cisco.com with ESMTP/TLS/DHE-RSA-AES256-SHA; 05 Nov 2015 02:16:17 +0000 Received: from XCH-RTP-001.cisco.com (xch-rtp-001.cisco.com [64.101.220.141]) by alln-core-6.cisco.com (8.14.5/8.14.5) with ESMTP id tA52GHJv011380 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL); Thu, 5 Nov 2015 02:16:17 GMT Received: from xch-rtp-005.cisco.com (64.101.220.145) by XCH-RTP-001.cisco.com (64.101.220.141) with Microsoft SMTP Server (TLS) id 15.0.1104.5; Wed, 4 Nov 2015 21:16:16 -0500 Received: from xch-rtp-005.cisco.com ([64.101.220.145]) by XCH-RTP-005.cisco.com ([64.101.220.145]) with mapi id 15.00.1104.000; Wed, 4 Nov 2015 21:16:16 -0500 From: "Ali Sajassi (sajassi)" To: "Jeffrey (Zhaohui) Zhang" , "Samer Salam (ssalam)" , "Dennis Cai (dcai)" Thread-Topic: Questions on draft-sajassi-bess-evpn-l3vpn-multihoming Thread-Index: AdEXSXpVw5tH5HzuSpK/KH0bbWEPVgAk3B2A Date: Thu, 5 Nov 2015 02:16:16 +0000 Message-ID: References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/14.5.7.151005 x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.24.155.99] Content-Type: text/plain; charset="iso-8859-1" Content-ID: Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Archived-At: Cc: "bess@ietf.org" Subject: Re: [bess] Questions on draft-sajassi-bess-evpn-l3vpn-multihoming X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 Nov 2015 02:16:20 -0000 Hi Jeffrey, On 11/5/15, 7:19 AM, "Jeffrey (Zhaohui) Zhang" wrote: >Hi, > >I have a few questions: > > On the S-PEs, the pseudowires from the Access PEs are terminated onto > VRFs, such that all pseudowires within a given redundancy set > terminate on a single IP endpoint on the S-PEs. To achieve this, the > S-PEs in a given Redundancy Group are configured with the same > Anycast IP and MAC addresses on the virtual (sub)interface > corresponding to the VRF termination point. > >Is the virtual interface (like) an IRB interface? No IRB interface in this case. This is the virtual interface/sub-interface address. > > Since the S-PEs are running in EVPN single-active redundancy mode, > the S-PEs would advertise an Ethernet AD route per vES with the > single-active flag set per [RFC7432]. Since only the DF S-PE has its > access pseudowire in Active state, only that device would establish > an eBGP session with the CE and receive control and data traffic. > >Will the IRB/virtual interface on a non-DF PE be up? I assume it is - >even though the PW is not active. Would the non-DF PE keeps trying to >establish the eBGP session with the CE? Would that cause issue to the >session between CE and the DF PE? The backup PW will be in stand-by mode (not up) and thus there won=B9t be a eBGP session established between non-DF and the CE. Only when the non-DF becomes DF, then eBGP session gets established. > > The > DF S-PE advertises host prefixes that it receives, from the CE over > the eBGP session, to other PEs in the EVI using EVPN route type-5, > with the proper ESI set. Remote PEs learn the host prefixes and > associate them with the ESI, using the advertising PE as the next-hop > for forwarding. > >Would he DF S-PE advertise other prefixes received on the eBGP session? I >assume so but the text only says host prefixes. That=B9s Correct. There will be other prefixes. We=B9ll take care of it in = the next rev. > > Other S-PEs in the same Redundancy Group as the advertising PE will > receive the same EVPN route type-5 advertisement, and will recognize > the associated ESI as a locally attached vES. > >What is the RT that limits the routes to be imported only the PEs in the >same redundancy group? Is it that all PEs in the same EVPN instance will >import the routes? Or is it that different redundancy groups will have >different EVPN instances? I assume it's latter (since we need one IRB >interface for each redundancy group?). The RT will be the RT associated with the vES/ES. > > The withdrawal of the Ethernet > Segment route serves as an indication to the backup S-PE to go active > (i.e. act as a backup DF), and activate its pseudowires to the Access > PE. The withdrawal of the Ethernet A-D route triggers a "mass > withdraw" on the remote PEs: these PEs adjust their next-hop > associated with the prefixes that were originally advertised by the > failed PE to point to the "backup path" per [RFC7432]. > >Can you elaborate the procedure for the PEs to adjust their next-hop? Please refer to sections 8.4 and 14.1.1. > >I don't see reference to draft-ietf-bess-evpn-vpws. Is that used at all? Evpn-vpws is not used but it can be used to reduce the PW provisioning to only single-side. Cheers, Ali > >Thanks. >Jeffrey From nobody Wed Nov 4 18:32:07 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 3D2A31B37E8 for ; Wed, 4 Nov 2015 18:32:06 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.902 X-Spam-Level: X-Spam-Status: No, score=-1.902 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id xy6OT2tAhgoW for ; Wed, 4 Nov 2015 18:32:04 -0800 (PST) Received: from na01-bn1-obe.outbound.protection.outlook.com (mail-bn1bon0752.outbound.protection.outlook.com [IPv6:2a01:111:f400:fc10::1:752]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id C1D5F1B2F70 for ; Wed, 4 Nov 2015 18:32:03 -0800 (PST) Received: from BLUPR0501MB1715.namprd05.prod.outlook.com (10.163.120.18) by BLUPR0501MB1714.namprd05.prod.outlook.com (10.163.120.17) with Microsoft SMTP Server (TLS) id 15.1.318.15; Thu, 5 Nov 2015 02:31:58 +0000 Received: from BLUPR0501MB1715.namprd05.prod.outlook.com ([10.163.120.18]) by BLUPR0501MB1715.namprd05.prod.outlook.com ([10.163.120.18]) with mapi id 15.01.0318.003; Thu, 5 Nov 2015 02:31:58 +0000 From: "Jeffrey (Zhaohui) Zhang" To: "Ali Sajassi (sajassi)" , "Samer Salam (ssalam)" , "Dennis Cai (dcai)" Thread-Topic: Questions on draft-sajassi-bess-evpn-l3vpn-multihoming Thread-Index: AdEXSXpVw5tH5HzuSpK/KH0bbWEPVgAk3B2AABr8GRA= Date: Thu, 5 Nov 2015 02:31:58 +0000 Message-ID: References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=zzhang@juniper.net; x-originating-ip: [66.129.241.14] x-microsoft-exchange-diagnostics: 1; BLUPR0501MB1714; 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DIR:OUT; SFP:1102; SCL:1; SRVR:BLUPR0501MB1714; H:BLUPR0501MB1715.namprd05.prod.outlook.com; FPR:; SPF:None; PTR:InfoNoRecords; A:1; MX:1; LANG:en; received-spf: None (protection.outlook.com: juniper.net does not designate permitted sender hosts) spamdiagnosticoutput: 1:23 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: juniper.net X-MS-Exchange-CrossTenant-originalarrivaltime: 05 Nov 2015 02:31:58.5509 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: bea78b3c-4cdb-4130-854a-1d193232e5f4 X-MS-Exchange-Transport-CrossTenantHeadersStamped: BLUPR0501MB1714 Archived-At: Cc: "bess@ietf.org" Subject: Re: [bess] Questions on draft-sajassi-bess-evpn-l3vpn-multihoming X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 Nov 2015 02:32:06 -0000 Hi Ali, > -----Original Message----- > From: Ali Sajassi (sajassi) [mailto:sajassi@cisco.com] > Sent: Thursday, November 05, 2015 11:16 AM > To: Jeffrey (Zhaohui) Zhang ; Samer Salam (ssalam) > ; Dennis Cai (dcai) > Cc: bess@ietf.org > Subject: Re: Questions on draft-sajassi-bess-evpn-l3vpn-multihoming >=20 >=20 > Hi Jeffrey, >=20 >=20 > On 11/5/15, 7:19 AM, "Jeffrey (Zhaohui) Zhang" wrote= : >=20 > >Hi, > > > >I have a few questions: > > > > On the S-PEs, the pseudowires from the Access PEs are terminated onto > > VRFs, such that all pseudowires within a given redundancy set > > terminate on a single IP endpoint on the S-PEs. To achieve this, the > > S-PEs in a given Redundancy Group are configured with the same > > Anycast IP and MAC addresses on the virtual (sub)interface > > corresponding to the VRF termination point. > > > >Is the virtual interface (like) an IRB interface? >=20 > No IRB interface in this case. This is the virtual interface/sub-interfac= e > address. >=20 > > > > Since the S-PEs are running in EVPN single-active redundancy mode, > > the S-PEs would advertise an Ethernet AD route per vES with the > > single-active flag set per [RFC7432]. Since only the DF S-PE has its > > access pseudowire in Active state, only that device would establish > > an eBGP session with the CE and receive control and data traffic. > > > >Will the IRB/virtual interface on a non-DF PE be up? I assume it is - > >even though the PW is not active. Would the non-DF PE keeps trying to > >establish the eBGP session with the CE? Would that cause issue to the > >session between CE and the DF PE? >=20 > The backup PW will be in stand-by mode (not up) and thus there won=B9t be= a > eBGP session established between non-DF and the CE. Only when the non-DF > becomes DF, then eBGP session gets established. Whether it is an IRB interface or not, is the interface considered up (at l= ayer 3) when the PW is in the stand-by mode? I understand that the EBGP session won't be established, but will the stand= by PE try to establish it? Would that attempt cause trouble to the establis= hed session (assuming the CE will get messages from the standby PE via the = primary PE)? >=20 > > > > The > > DF S-PE advertises host prefixes that it receives, from the CE over > > the eBGP session, to other PEs in the EVI using EVPN route type-5, > > with the proper ESI set. Remote PEs learn the host prefixes and > > associate them with the ESI, using the advertising PE as the next-hop > > for forwarding. > > > >Would he DF S-PE advertise other prefixes received on the eBGP session? = I > >assume so but the text only says host prefixes. >=20 > That=B9s Correct. There will be other prefixes. We=B9ll take care of it i= n the > next rev. >=20 > > > > Other S-PEs in the same Redundancy Group as the advertising PE will > > receive the same EVPN route type-5 advertisement, and will recognize > > the associated ESI as a locally attached vES. > > > >What is the RT that limits the routes to be imported only the PEs in the > >same redundancy group? Is it that all PEs in the same EVPN instance will > >import the routes? Or is it that different redundancy groups will have > >different EVPN instances? I assume it's latter (since we need one IRB > >interface for each redundancy group?). >=20 > The RT will be the RT associated with the vES/ES. Will the vES/ES belong to a single EVPN instance only? >=20 > > > > The withdrawal of the Ethernet > > Segment route serves as an indication to the backup S-PE to go active > > (i.e. act as a backup DF), and activate its pseudowires to the Access > > PE. The withdrawal of the Ethernet A-D route triggers a "mass > > withdraw" on the remote PEs: these PEs adjust their next-hop > > associated with the prefixes that were originally advertised by the > > failed PE to point to the "backup path" per [RFC7432]. > > > >Can you elaborate the procedure for the PEs to adjust their next-hop? >=20 > Please refer to sections 8.4 and 14.1.1. Part of my confusion came from the (wrong impression) that EVPN procedure i= s also used between the APE and SPE (for vpws). Now that it is not the case= , would the same concept in this draft apply even if the CE is connected vi= a regular ACs? Thanks. Jeffrey >=20 > > > >I don't see reference to draft-ietf-bess-evpn-vpws. Is that used at all? >=20 > Evpn-vpws is not used but it can be used to reduce the PW provisioning to > only single-side. >=20 > Cheers, > Ali >=20 > > > >Thanks. > >Jeffrey From nobody Wed Nov 4 18:33:44 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id E3E2A1B3909 for ; Wed, 4 Nov 2015 18:33:43 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.51 X-Spam-Level: X-Spam-Status: No, score=-14.51 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_HI=-5, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id TKI0wDMu81YC for ; Wed, 4 Nov 2015 18:33:42 -0800 (PST) Received: from alln-iport-8.cisco.com (alln-iport-8.cisco.com [173.37.142.95]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id D87991B38F7 for ; Wed, 4 Nov 2015 18:33:41 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=7707; q=dns/txt; s=iport; t=1446690821; x=1447900421; h=from:to:cc:subject:date:message-id:references: in-reply-to:mime-version; bh=306SQiz7XvPRYtsmOmIZUOfOIHSbpEqg76m2+NNccZ4=; b=YDEXdhhf0KHDSsjb7JcyHfcqvP9nbrJzt2WJdJ8vuxcMKHkd6DwCJyLj TbaF/wKRfnPYSOq6dHrY+7eBG0B5ODe2w0bFPENjjRnyu7iB8V0aOCNYe VPG/nDap0gINxQZsfE9ZBUJMPej5wPUTC1TqMJhVZSBQzTJz5gunQ+8PA c=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A0D8AQBrvzpW/5RdJa1egm5NgUIGvXYBDYFehhICgUE4FAEBAQEBAQGBCoQ1AQEBBHkQAgEIEQMBAigHMhQJCAEBBA4FiC7CAAEBAQEBAQEBAQEBAQEBAQEBAQEBARiLUoR7hD0FjVSIdAGNIoFah2SPEYNxAR8BAUKEBHKEGIEHAQEB X-IronPort-AV: E=Sophos;i="5.20,245,1444694400"; d="scan'208,217";a="205203328" Received: from rcdn-core-12.cisco.com ([173.37.93.148]) by alln-iport-8.cisco.com with ESMTP; 05 Nov 2015 02:33:40 +0000 Received: from XCH-RTP-001.cisco.com (xch-rtp-001.cisco.com [64.101.220.141]) by rcdn-core-12.cisco.com (8.14.5/8.14.5) with ESMTP id tA52XeEO024106 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL); Thu, 5 Nov 2015 02:33:40 GMT Received: from xch-rtp-005.cisco.com (64.101.220.145) by XCH-RTP-001.cisco.com (64.101.220.141) with Microsoft SMTP Server (TLS) id 15.0.1104.5; Wed, 4 Nov 2015 21:33:39 -0500 Received: from xch-rtp-005.cisco.com ([64.101.220.145]) by XCH-RTP-005.cisco.com ([64.101.220.145]) with mapi id 15.00.1104.000; Wed, 4 Nov 2015 21:33:39 -0500 From: "Ali Sajassi (sajassi)" To: Haoweiguo Thread-Topic: Comments on "draft-sajassi-bess-evpn-igmp-mld-proxy-00" Thread-Index: AdEMpjj259K5iE8ETHms059lGH4czQLOR7qA Date: Thu, 5 Nov 2015 02:33:39 +0000 Message-ID: References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/14.5.7.151005 x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.24.155.99] Content-Type: multipart/alternative; boundary="_000_D260ED5D15F560sajassiciscocom_" MIME-Version: 1.0 Archived-At: Cc: "bess@ietf.org" Subject: Re: [bess] Comments on "draft-sajassi-bess-evpn-igmp-mld-proxy-00" X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 Nov 2015 02:33:44 -0000 --_000_D260ED5D15F560sajassiciscocom_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Weiguo, From: Haoweiguo > Date: Thursday, October 22, 2015 at 2:17 AM To: Cisco Employee > Cc: "bess@ietf.org" > Subject: Comments on "draft-sajassi-bess-evpn-igmp-mld-proxy-00" Hi Ali, I have read through the draft, i think the procedures is fine for IGMP/MLD = proxy. However, this draft doesn't consider multicast router scenario, bett= er to be added. Scenario 1: An EVPN PE acts as multicast router and runs PIM protocol with the= outside multicast routers. Scenario 2: An EVPN PE connects to a multicast router on port1, no IGMP receiv= er on the port. The PE sends IGMP/MLD to the multicast router. We have covered both scenarios. The first one is referred to as "distribute= d anycast router" In both scenarios, the EVPN PE should announce its role through the extende= d route type6 to indicate it connects to a multicast router or acts as mult= icast router itself. Other EVPN PEs having local multicast source should forward the multicast t= raffic to the PE announcing multicast router role, the PE announcing multic= ast router role should not be pruned for all multicast traffic. For the PE connecting to a multicast router, it should translate EVPN rout= e type-6 message to IGMP/MLD message, it's already described in your draft.= For the PE acting as multicast router, it should translate EVPN route type= -6 message to PIM protocol, this part has not been covered in your draft, b= etter to be added. Correct, the mcast traffic treatment for inter-subnet is not described yet = but we'll mention it in the next rev. Cheers, Ali Thanks, weiguo --_000_D260ED5D15F560sajassiciscocom_ Content-Type: text/html; charset="iso-8859-1" Content-ID: <5BA65315B20A5846807309E457FBD30A@emea.cisco.com> Content-Transfer-Encoding: quoted-printable

Hi Weiguo,


From: Haoweiguo <haoweiguo@huawei.com>
Date: Thursday, October 22, 2015 at= 2:17 AM
To: Cisco Employee <sajassi@cisco.com>
Cc: "bess@ietf.org" <bess@i= etf.org>
Subject: Comments on "draft-sa= jassi-bess-evpn-igmp-mld-proxy-00"

Hi Ali,

I have read through the draft, i think= the procedures is fine for IGMP/MLD proxy. However, this draft doesn't con= sider multicast router scenario, better to be added.

Scenario 1:

      &n= bsp;  An EVPN PE acts as multicast router and runs PIM protocol with t= he outside multicast routers.

Scenario 2:

      &n= bsp;  An EVPN PE connects to a multicast router on port1, no IGMP rece= iver on the port.  The PE sends IGMP/MLD to the multicast router.=

 

We have cove= red both scenarios. The first one is referred to as “distributed= anycast router"

In both scenarios, the EVPN= PE should announce its role through the extended route type6 to indicate i= t connects to a multicast router or acts as multicast router itself.

Other EVPN PEs having local multicast source should forward the multic= ast traffic to the PE announcing multicast router role, the PE announcing m= ulticast router role should not be pruned for all multicast traffic.

For the PE connecting to a multicast router, it s= hould translate  EVPN route type-6 message to IGMP/MLD message, it's a= lready described in your draft. For the PE acting as multicast router, it should translate= EVPN route type-6 message to PIM protocol, this part has not been covered = in your draft, better to be added.


Correct, the mcast traffic treatment for inter= -subnet is not described yet but we’ll mention it in the next rev.

Cheers,
Ali

 

Thanks,

weiguo

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nobody Wed Nov 4 21:42:28 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 9FA8C1B39EC for ; Wed, 4 Nov 2015 21:42:27 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.91 X-Spam-Level: X-Spam-Status: No, score=-6.91 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_HI=-5, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id CPyXHDZ-405h for ; Wed, 4 Nov 2015 21:42:25 -0800 (PST) Received: from smtp-fr.alcatel-lucent.com (fr-hpida-esg-02.alcatel-lucent.com [135.245.210.21]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 5A32C1B39DD for ; Wed, 4 Nov 2015 21:42:25 -0800 (PST) Received: from fr712usmtp2.zeu.alcatel-lucent.com (unknown [135.239.2.42]) by Websense Email Security Gateway with ESMTPS id 88A35CAD19391; Thu, 5 Nov 2015 05:42:22 +0000 (GMT) Received: from FR712WXCHHUB03.zeu.alcatel-lucent.com (fr712wxchhub03.zeu.alcatel-lucent.com [135.239.2.74]) by fr712usmtp2.zeu.alcatel-lucent.com (GMO) with ESMTP id tA55gNSg029375 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=FAIL); Thu, 5 Nov 2015 06:42:23 +0100 Received: from FR711WXCHMBA07.zeu.alcatel-lucent.com ([169.254.3.17]) by FR712WXCHHUB03.zeu.alcatel-lucent.com ([135.239.2.74]) with mapi id 14.03.0195.001; Thu, 5 Nov 2015 06:42:23 +0100 From: "Henderickx, Wim (Wim)" To: "Jeffrey (Zhaohui) Zhang" , "bess@ietf.org" Thread-Topic: draft-sajassi-bess-evpn-l3vpn- multihoming-00.txt Thread-Index: AQHRF4pdNna3jq/wVE+wDWaW+FF50Z6M6TvAgACHSAA= Date: Thu, 5 Nov 2015 05:42:22 +0000 Message-ID: <9E9C85C2-961C-4B53-BF7A-27347B9CFA61@alcatel-lucent.com> References: In-Reply-To: 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To: "Henderickx, Wim (Wim)" , "bess@ietf.org" Thread-Topic: draft-sajassi-bess-evpn-l3vpn- multihoming-00.txt Thread-Index: AQHRF4pdNna3jq/wVE+wDWaW+FF50Z6M6TvAgACHSAD//3oN0A== Date: Thu, 5 Nov 2015 05:44:36 +0000 Message-ID: References: <9E9C85C2-961C-4B53-BF7A-27347B9CFA61@alcatel-lucent.com> In-Reply-To: <9E9C85C2-961C-4B53-BF7A-27347B9CFA61@alcatel-lucent.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=zzhang@juniper.net; x-originating-ip: [66.129.241.14] x-microsoft-exchange-diagnostics: 1; BLUPR0501MB1716; 5:S+zCQQq4CaUPuPdVL+T0jh7TCVi+26uDk8w0q+C3xPfayPkafKuEd7B1lgelZLDdj40E8r1/mNuLQdn9LSc84rtboSvDVlsV1tvn3d3oN3PUUOfIVMWxeHr8vLCKEC72qbNxHQR/vyNazGdGtT+oyQ==; 24:a66DUJ9UvKOWBZX768lvcY5nh97sS2fyuG4GvlP+ggEZDngNbHcGe7fMtn5I5Z0Cr7uTZMFK+k7nXbE5KPf0CVD9b+D/OCMfB90WOOWZeWM=; 20:A/Y8bEDjblCt9P4zYibu7VCAK6gBYJa31R0W4Bzu4MqvNbnpfscexaOmo1CyAqsl4mcxo/cbvPG2Jw4G6+QnUg== 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for ; Wed, 4 Nov 2015 21:46:14 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.91 X-Spam-Level: X-Spam-Status: No, score=-6.91 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_HI=-5, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id U_JOIrs7RyJt for ; Wed, 4 Nov 2015 21:46:13 -0800 (PST) Received: from smtp-fr.alcatel-lucent.com (fr-hpida-esg-02.alcatel-lucent.com [135.245.210.21]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id E39CF1B3A00 for ; Wed, 4 Nov 2015 21:46:12 -0800 (PST) Received: from fr712usmtp2.zeu.alcatel-lucent.com (unknown [135.239.2.42]) by Websense Email Security Gateway with ESMTPS id 32FEF37CB1FD3; Thu, 5 Nov 2015 05:46:10 +0000 (GMT) Received: from 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from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 055CE1B3A18 for ; Wed, 4 Nov 2015 21:54:31 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.21 X-Spam-Level: X-Spam-Status: No, score=-4.21 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id fAaNNj6e1T3h for ; Wed, 4 Nov 2015 21:54:28 -0800 (PST) Received: from lhrrgout.huawei.com (lhrrgout.huawei.com [194.213.3.17]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id DBF051B3A1B for ; Wed, 4 Nov 2015 21:54:27 -0800 (PST) Received: from 172.18.7.190 (EHLO lhreml402-hub.china.huawei.com) ([172.18.7.190]) by lhrrg01-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id CDR53012; Thu, 05 Nov 2015 05:54:24 +0000 (GMT) Received: from nkgeml407-hub.china.huawei.com (10.98.56.38) by lhreml402-hub.china.huawei.com (10.201.5.241) with Microsoft SMTP Server (TLS) id 14.3.235.1; Thu, 5 Nov 2015 05:54:17 +0000 Received: from NKGEML501-MBS.china.huawei.com ([169.254.2.75]) by nkgeml407-hub.china.huawei.com ([10.98.56.38]) with mapi id 14.03.0235.001; Thu, 5 Nov 2015 13:54:09 +0800 From: Haoweiguo To: "Ali Sajassi (sajassi)" Thread-Topic: Comments on "draft-sajassi-bess-evpn-igmp-mld-proxy-00" Thread-Index: AdEMpjj259K5iE8ETHms059lGH4czQLOR7qA//9Y6hU= Date: Thu, 5 Nov 2015 05:54:09 +0000 Message-ID: References: , In-Reply-To: Accept-Language: en-US, zh-CN Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.194.185.251] Content-Type: multipart/alternative; boundary="_000_DD5FC8DE455C3348B94340C0AB5517334F8D61EAnkgeml501mbschi_" MIME-Version: 1.0 X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020205.563AEF12.004A, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=169.254.2.75, so=2013-06-18 04:22:30, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: 02f3d49b0f7eccda03ba7b1836e576e0 Archived-At: Cc: "bess@ietf.org" Subject: Re: [bess] Comments on "draft-sajassi-bess-evpn-igmp-mld-proxy-00" X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 Nov 2015 05:54:31 -0000 --_000_DD5FC8DE455C3348B94340C0AB5517334F8D61EAnkgeml501mbschi_ Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Hi Ali, Thanks for your reply. I think the 'distributd anycast multicast router' ma= y not satisfy my requirements. In my discriptions, one multicast router is = attached behind a EVPN PE or the multicast router also acts as an EVPN PE a= t the same time, the multicat router is centralized deployed. In this scen= ario, one bit Flag as multicast router indicator is needed. The PE acting a= s multicast router or with multicast router behind should announce the rout= e type 6 message with the indicator flag marked. When other PEs with multic= ast source behind receives the message, when they inject local multicast t= raffic to EVPN network, they will always send the traffic to the multicast = router PE, the multicast traffic will never be pruned. If no this Flag, if = the multicast router PE has no local IGMP/MLG receivers, the multicast traf= fic from other PEs will never come to the multicast router PE. I think your whole solution is good, it's easy to add this multicast router= Flag bit in route type-6 TLV. Thanks, weiguo ________________________________ From: Ali Sajassi (sajassi) [sajassi@cisco.com] Sent: Thursday, November 05, 2015 10:33 To: Haoweiguo Cc: bess@ietf.org Subject: Re: Comments on "draft-sajassi-bess-evpn-igmp-mld-proxy-00" Hi Weiguo, From: Haoweiguo > Date: Thursday, October 22, 2015 at 2:17 AM To: Cisco Employee > Cc: "bess@ietf.org" > Subject: Comments on "draft-sajassi-bess-evpn-igmp-mld-proxy-00" Hi Ali, I have read through the draft, i think the procedures is fine for IGMP/MLD = proxy. However, this draft doesn't consider multicast router scenario, bett= er to be added. Scenario 1: An EVPN PE acts as multicast router and runs PIM protocol with the= outside multicast routers. Scenario 2: An EVPN PE connects to a multicast router on port1, no IGMP receiv= er on the port. The PE sends IGMP/MLD to the multicast router. We have covered both scenarios. The first one is referred to as =93distribu= ted anycast router" In both scenarios, the EVPN PE should announce its role through the extende= d route type6 to indicate it connects to a multicast router or acts as mult= icast router itself. Other EVPN PEs having local multicast source should forward the multicast t= raffic to the PE announcing multicast router role, the PE announcing multic= ast router role should not be pruned for all multicast traffic. For the PE connecting to a multicast router, it should translate EVPN rout= e type-6 message to IGMP/MLD message, it's already described in your draft.= For the PE acting as multicast router, it should translate EVPN route type= -6 message to PIM protocol, this part has not been covered in your draft, b= etter to be added. Correct, the mcast traffic treatment for inter-subnet is not described yet = but we=92ll mention it in the next rev. Cheers, Ali Thanks, weiguo --_000_DD5FC8DE455C3348B94340C0AB5517334F8D61EAnkgeml501mbschi_ Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable

Hi Ali,

Thanks for your reply. I think t= he 'distributd anycast multicast router' may not satisfy my requirements. I= n my discriptions, one multicast router is attached behind a EVPN PE or the= multicast router also acts as an EVPN PE at the same time,  the multicat router is centralized deployed.&nb= sp;In this scenario, one bit Flag as multicast router indicator is needed. = The = PE acting as multicast router or with multicast router behind should announce the route type 6 message with the indicator = flag marked. When other PEs with multicast source behind receives the messa= ge,  when they inject local multicast traffic to EVPN network, they wi= ll always send the traffic to the multicast router PE, the multicast traffic will never be pruned. If no this Flag, if= the multicast router PE has no local IGMP/MLG receivers, the multicast tra= ffic from other PEs will never come to the multicast router PE.

 

I think your whole solution is go= od, it's easy to add this multicast router Flag bit in route type-6 TLV.

 

Thanks,

weiguo

From: Ali Sajassi (sajassi) [sajassi@cisco= .com]
Sent: Thursday, November 05, 2015 10:33
To: Haoweiguo
Cc: bess@ietf.org
Subject: Re: Comments on "draft-sajassi-bess-evpn-igmp-mld-prox= y-00"


Hi Weiguo,


From: Haoweiguo <haoweiguo@huawei.com> Date: Thursday, October 22, 2015 a= t 2:17 AM
To: Cisco Employee <sajassi@cisco.com>
Cc: "bess@ietf.org" <bess@ietf.org>
Subject: Comments on "draft-s= ajassi-bess-evpn-igmp-mld-proxy-00"

Hi Ali,

I have read through the draft, i think= the procedures is fine for IGMP/MLD proxy. However, this draft doesn't con= sider multicast router scenario, better to be added.

Scenario 1:

      &n= bsp;  An EVPN PE acts as multicast router and runs PIM protocol with t= he outside multicast routers.

Scenario 2:

      &n= bsp;  An EVPN PE connects to a multicast router on port1, no IGMP rece= iver on the port.  The PE sends IGMP/MLD to the multicast router.=

 

We have cove= red both scenarios. The first one is referred to as =93distributed any= cast router"

In both scenarios, the EVPN= PE should announce its role through the extended route type6 to indicate i= t connects to a multicast router or acts as multicast router itself.

Other EVPN PEs having local multicast source should forward the multic= ast traffic to the PE announcing multicast router role, the PE announcing m= ulticast router role should not be pruned for all multicast traffic.

For the PE connecting to a multicast router, it s= hould translate  EVPN route type-6 message to IGMP/MLD message, it's a= lready described in your draft. For the PE acting as multicast router, it should translate= EVPN route type-6 message to PIM protocol, this part has not been covered = in your draft, better to be added.


Correct, the mcast traffic treatment for inter= -subnet is not described yet but we=92ll mention it in the next rev.=

Cheers,
Ali

 

Thanks,

weiguo

--_000_DD5FC8DE455C3348B94340C0AB5517334F8D61EAnkgeml501mbschi_-- From nobody Wed Nov 4 21:58:14 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 6480B1B3A30 for ; Wed, 4 Nov 2015 21:58:12 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.997 X-Spam-Level: X-Spam-Status: No, score=-1.997 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, MALFORMED_FREEMAIL=0.001, MIME_QP_LONG_LINE=0.001, SPF_PASS=-0.001] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 5PL1JFhpotCl for ; Wed, 4 Nov 2015 21:58:11 -0800 (PST) Received: from mail-pa0-x22c.google.com (mail-pa0-x22c.google.com [IPv6:2607:f8b0:400e:c03::22c]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 4A60D1B3A28 for ; Wed, 4 Nov 2015 21:58:11 -0800 (PST) Received: by pasz6 with SMTP id z6so79590744pas.2 for ; Wed, 04 Nov 2015 21:58:11 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=user-agent:date:subject:from:to:message-id:thread-topic :mime-version:content-type; bh=pPEe0CK/UBND0FliX5OGMhYDt8JpVl21TXAYGySuyQY=; b=UtJmPVmEaFC/lIi1oluxEiInZdJ/ak5lfaOfmUIk4Isx0UXqFWTzkdTuSNbBmERzTd 0FIcKA8qXDBR2kc1h43EWtcpStvozQHwlgKutoHdzHMVcy6pq6PmH/JEW6ZoxcorjwYy MhgpRCqcaR6UezCnwP7F5I6gtGkezo9H1POtV+FOPDay6WAK9VpWjGK5S+yASDru/xdX AbTRYNQksmJ5+vvFzPGsMklr+kwV6jeaQbxxU2/oEGnbcrj18FP+VNUEp7aGywpoCem9 hNX5zd1E3fDCUe230nOsj1PUJBYLDi6sI5BJmOMSMy3AzzxWUq/SAn3uSQSTXzhvdapk 3YCA== X-Received: by 10.68.193.165 with SMTP id hp5mr7131049pbc.20.1446703091001; Wed, 04 Nov 2015 21:58:11 -0800 (PST) Received: from [135.244.112.85] (dhcp-26-243.meeting.ietf94.jp. [133.93.26.243]) by smtp.gmail.com with ESMTPSA id kw16sm5457466pab.34.2015.11.04.21.58.08 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 04 Nov 2015 21:58:10 -0800 (PST) User-Agent: Microsoft-MacOutlook/0.0.0.151008 Date: Thu, 05 Nov 2015 14:58:03 +0900 From: Wim Henderickx To: Message-ID: Thread-Topic: draft-sajassi-bess-pbb-evpn-anycast-ip- tunnels-00.txt Mime-version: 1.0 Content-type: multipart/alternative; boundary="B_3529580289_1779388205" Archived-At: Subject: [bess] draft-sajassi-bess-pbb-evpn-anycast-ip- tunnels-00.txt X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 Nov 2015 05:58:12 -0000 > This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. --B_3529580289_1779388205 Content-type: text/plain; charset="UTF-8" Content-transfer-encoding: 7bit After clarification in the meeting I learned it is a requirement to select the same PE for upstream/downstream traffic. My question is how is this done? Or better which mechanisms are used to achieve this? --B_3529580289_1779388205 Content-type: text/html; charset="UTF-8" Content-transfer-encoding: quoted-printable
After clarification= in the meeting I learned it is a requirement to select the same PE for upst= ream/downstream traffic.
My question is how is this done? Or bette= r which mechanisms are used to achieve this?
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([173.36.13.131]) by alln-iport-3.cisco.com with ESMTP/TLS/DHE-RSA-AES256-SHA; 05 Nov 2015 06:44:48 +0000 Received: from XCH-ALN-013.cisco.com (xch-aln-013.cisco.com [173.36.7.23]) by alln-core-1.cisco.com (8.14.5/8.14.5) with ESMTP id tA56imD3027825 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL); Thu, 5 Nov 2015 06:44:48 GMT Received: from xch-aln-014.cisco.com (173.36.7.24) by XCH-ALN-013.cisco.com (173.36.7.23) with Microsoft SMTP Server (TLS) id 15.0.1104.5; Thu, 5 Nov 2015 00:44:47 -0600 Received: from xch-aln-014.cisco.com ([173.36.7.24]) by XCH-ALN-014.cisco.com ([173.36.7.24]) with mapi id 15.00.1104.000; Thu, 5 Nov 2015 00:44:47 -0600 From: "Jakob Heitz (jheitz)" To: "Henderickx, Wim (Wim)" , "Jeffrey (Zhaohui) Zhang" , "bess@ietf.org" Thread-Topic: draft-sajassi-bess-evpn-l3vpn- multihoming-00.txt Thread-Index: AQHRF4pdNna3jq/wVE+wDWaW+FF50Z6M6TvAgACHSAD//3oN0IAAhwKA//99nHA= Date: Thu, 5 Nov 2015 06:44:47 +0000 Message-ID: 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<7221C98A-7398-426A-9137-4F03EC842AC0@alcatel-lucent.com> <6e2b2585b9af40ef98b10046e38e42ea@XCH-ALN-014.cisco.com> In-Reply-To: <6e2b2585b9af40ef98b10046e38e42ea@XCH-ALN-014.cisco.com> Accept-Language: nl-BE, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/0.0.0.151008 x-originating-ip: [135.239.27.40] Content-Type: multipart/alternative; boundary="_000_97F2B23DA9DF4E02A892EE14A33C5B1Balcatellucentcom_" MIME-Version: 1.0 Archived-At: Subject: Re: [bess] draft-sajassi-bess-evpn-l3vpn- multihoming-00.txt X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 Nov 2015 08:17:18 -0000 --_000_97F2B23DA9DF4E02A892EE14A33C5B1Balcatellucentcom_ Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 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PSJjb2xvcjpibGFjayI+PG86cD48L286cD48L3NwYW4+PC9wPg0KPC9kaXY+DQo8L2Rpdj4NCjwv ZGl2Pg0KPC9kaXY+DQo8L2Rpdj4NCjwvZGl2Pg0KPC9kaXY+DQo8L2Rpdj4NCjwvZGl2Pg0KPC9k aXY+DQo8L2Rpdj4NCjwvc3Bhbj4NCjwvYm9keT4NCjwvaHRtbD4NCg== --_000_97F2B23DA9DF4E02A892EE14A33C5B1Balcatellucentcom_-- From nobody Fri Nov 6 06:14:18 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 1A5E21A90A0 for ; Fri, 6 Nov 2015 06:14:16 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.51 X-Spam-Level: X-Spam-Status: No, score=-14.51 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_HI=-5, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 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E=Sophos;i="5.20,252,1444694400"; d="scan'208,217";a="205045860" Received: from alln-core-1.cisco.com ([173.36.13.131]) by alln-iport-4.cisco.com with ESMTP; 06 Nov 2015 14:14:14 +0000 Received: from XCH-RTP-005.cisco.com (xch-rtp-005.cisco.com [64.101.220.145]) by alln-core-1.cisco.com (8.14.5/8.14.5) with ESMTP id tA6EEDnI011325 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL); Fri, 6 Nov 2015 14:14:13 GMT Received: from xch-rtp-005.cisco.com (64.101.220.145) by XCH-RTP-005.cisco.com (64.101.220.145) with Microsoft SMTP Server (TLS) id 15.0.1104.5; Fri, 6 Nov 2015 09:14:13 -0500 Received: from xch-rtp-005.cisco.com ([64.101.220.145]) by XCH-RTP-005.cisco.com ([64.101.220.145]) with mapi id 15.00.1104.000; Fri, 6 Nov 2015 09:14:13 -0500 From: "Ali Sajassi (sajassi)" To: Wim Henderickx , "bess@ietf.org" Thread-Topic: [bess] draft-sajassi-bess-pbb-evpn-anycast-ip- tunnels-00.txt Thread-Index: AQHRGJ1pa0NWtCzMxU6133++X84SJg== Date: Fri, 6 Nov 2015 14:14:13 +0000 Message-ID: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/14.5.7.151005 x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.24.103.161] Content-Type: multipart/alternative; boundary="_000_D262E41315FD2Csajassiciscocom_" MIME-Version: 1.0 Archived-At: Subject: Re: [bess] draft-sajassi-bess-pbb-evpn-anycast-ip- tunnels-00.txt X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 06 Nov 2015 14:14:16 -0000 --_000_D262E41315FD2Csajassiciscocom_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi Wim, If you can tell me what part of the draft is not clear, I will explain it h= ere and if any further clarification in the draft needed, I will take care = of it. Cheers, Ali From: BESS > on behalf = of Wim Henderickx > Date: Wednesday, November 4, 2015 at 10:58 PM To: "bess@ietf.org" > Subject: [bess] draft-sajassi-bess-pbb-evpn-anycast-ip- tunnels-00.txt After clarification in the meeting I learned it is a requirement to select = the same PE for upstream/downstream traffic. My question is how is this done? Or better which mechanisms are used to ach= ieve this? --_000_D262E41315FD2Csajassiciscocom_ Content-Type: text/html; charset="us-ascii" Content-ID: Content-Transfer-Encoding: quoted-printable

Hi Wim,

If you can tell me what part of the draft is not clear, I will explain= it here and if any further clarification in the draft needed, I will take = care of it.

Cheers,
Ali

From: BESS <bess-bounces@ietf.org> on behalf of Wim Henderi= ckx <wim.henderickx@gmail.co= m>
Date: Wednesday, November 4, 2015 a= t 10:58 PM
To: "bess@ietf.org" <bess@i= etf.org>
Subject: [bess] draft-sajassi-bess-= pbb-evpn-anycast-ip- tunnels-00.txt

After clarification in the meeting I learned it is a requirement to se= lect the same PE for upstream/downstream traffic.
My question is how is this done? Or better which mechanisms are used t= o achieve this?
--_000_D262E41315FD2Csajassiciscocom_-- From nobody Fri Nov 6 06:46:43 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 13ADC1A914C for ; Fri, 6 Nov 2015 06:46:42 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.51 X-Spam-Level: X-Spam-Status: No, score=-14.51 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_HI=-5, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 5O7A7PCOwbN1 for ; Fri, 6 Nov 2015 06:46:38 -0800 (PST) Received: from alln-iport-6.cisco.com (alln-iport-6.cisco.com [173.37.142.93]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id E57201A90FA for ; Fri, 6 Nov 2015 06:46:37 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=21460; q=dns/txt; s=iport; t=1446821197; x=1448030797; h=from:to:subject:date:message-id:mime-version; bh=Z1uBHJF76PJoTWz83o97Q0u+hBTER9/HHB1pX1PZjUc=; b=aRmPK6HGrHvfWNbPtfeUG6xx+Eka21fwiZrvT30+Vs124zjepyFd9G+/ pIA7cPQMe8PgfZ3nwTlqGYwrgwWZzxp9pfPGM9t4HKzyAbuyXebbhy9+4 jLKzVs1p/+/ihVn4Ji4u2QESqjEvwxq9/U0lZ5iZ1Xomri6gwjL9eYyPt U=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A0D+AQD3vDxW/5xdJa1egm5NU28GviEBDYFgIYVvAoE1OBQBAQEBAQEBgQqENQEBAQICLV4BCBEDAQEBIQc5FAkKBAESiC4NwXQBAQEBAQEBAQIBAQEBAQEBARcEi1KEKVINCYQoBYgdhTeIdAGNJJxDAR8BAUKCEQUYgVZyAYQMgQcBAQE X-IronPort-AV: E=Sophos;i="5.20,252,1444694400"; d="scan'208,217";a="205611421" Received: from rcdn-core-5.cisco.com ([173.37.93.156]) by alln-iport-6.cisco.com with ESMTP; 06 Nov 2015 14:46:36 +0000 Received: from XCH-RTP-015.cisco.com (xch-rtp-015.cisco.com [64.101.220.155]) by rcdn-core-5.cisco.com (8.14.5/8.14.5) with ESMTP id tA6EkaMZ000305 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL); Fri, 6 Nov 2015 14:46:36 GMT Received: from xch-rtp-005.cisco.com (64.101.220.145) by XCH-RTP-015.cisco.com (64.101.220.155) with Microsoft SMTP Server (TLS) id 15.0.1104.5; Fri, 6 Nov 2015 09:46:35 -0500 Received: from xch-rtp-005.cisco.com ([64.101.220.145]) by XCH-RTP-005.cisco.com ([64.101.220.145]) with mapi id 15.00.1104.000; Fri, 6 Nov 2015 09:46:35 -0500 From: "Ali Sajassi (sajassi)" To: "Henderickx, Wim (Wim)" , "Jakob Heitz (jheitz)" , "Jeffrey (Zhaohui) Zhang" , "bess@ietf.org" Thread-Topic: [bess] draft-sajassi-bess-evpn-l3vpn- multihoming-00.txt Thread-Index: AQHRGKHvsn7Nr7mXNE68X02/uRPdZA== Date: Fri, 6 Nov 2015 14:46:35 +0000 Message-ID: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/14.5.7.151005 x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.24.103.161] Content-Type: multipart/alternative; boundary="_000_D262E78015FD83sajassiciscocom_" MIME-Version: 1.0 Archived-At: Subject: Re: [bess] draft-sajassi-bess-evpn-l3vpn- multihoming-00.txt X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 06 Nov 2015 14:46:42 -0000 --_000_D262E78015FD83sajassiciscocom_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Wim, The draft currently assumes that all the S-PEs are EVPN PEs. However, the r= emote S-PEs really don't have to be EVPN PEs. They can be IP-VPN PEs and we= can use evpn-ipvpn-interop draft for the interoperability between the two = types. On the other hand, the S-PEs in the redundancy group have to be EVPN= PEs. Now, regarding using local edge PIC on the SPEs, it doesn't give you the sy= ch-up of prefixes for VRFs and ARP cache tables. We are talking about a sin= gle BGP session between the CE and S-PEs. And upon failure, we are talking = about non-stop forwarding with min. traffic disruption. -Ali From: BESS > on behalf = of "Henderickx, Wim (Wim)" > Date: Thursday, November 5, 2015 at 1:17 AM To: "Jakob Heitz (jheitz)" >, "Je= ffrey (Zhaohui) Zhang" >, "be= ss@ietf.org" > Subject: Re: [bess] draft-sajassi-bess-evpn-l3vpn- multihoming-00.txt Jakob, thx this is clear. What I see is that the benefits of ESI and Mass withdraw indication are als= o solved based on implementation. By using PW/tunnel indications and local = Edge PIC on the SPE connected to the access network can enable the same beh= aviour with similar convergence results. From: "Jakob Heitz (jheitz)" > Date: Thursday 5 November 2015 at 15:44 To: Wim Henderickx >, "Jeffrey (Zhaohui) Zhang" >, "bess@ietf.org" > Subject: RE: draft-sajassi-bess-evpn-l3vpn- multihoming-00.txt The point is that the CE does not realize that it is multihomed. The access node implements the multihoming, but the CE has only one BGP ses= sion and one interface. The APE-SPE connections is an ethernet with the same ESI towards SPE1 and S= PE2 The SPEs talk EVPN, using route type 5 to implement an L3VPN service. This provides the ESI and mass withdrawal that RFC4364 routes do not. --Jakob From: BESS [mailto:bess-bounces@ietf.org] On Behalf Of Henderickx, Wim (Wim= ) Sent: Wednesday, November 04, 2015 9:46 PM To: Jeffrey (Zhaohui) Zhang >= ; bess@ietf.org Subject: Re: [bess] draft-sajassi-bess-evpn-l3vpn- multihoming-00.txt IF you do Edge-PIC this is optional afais. From: "Jeffrey (Zhaohui) Zhang" > Date: Thursday 5 November 2015 at 14:44 To: Wim Henderickx >, "bess@ietf.org" > Subject: RE: draft-sajassi-bess-evpn-l3vpn- multihoming-00.txt My understanding is that an IP-VPN PE would not be able take advantage of "= mass-withdraw"? From: Henderickx, Wim (Wim) [mailto:wim.henderickx@alcatel-lucent.com] Sent: Thursday, November 05, 2015 2:42 PM To: Jeffrey (Zhaohui) Zhang >= ; bess@ietf.org Subject: Re: draft-sajassi-bess-evpn-l3vpn- multihoming-00.txt Is the draft assuming also IP-VPN in the core or only EVPN? I don't see a reason for excluding one or another From: "Jeffrey (Zhaohui) Zhang" > Date: Thursday 5 November 2015 at 14:40 To: Wim Henderickx >, "bess@ietf.org" > Subject: RE: draft-sajassi-bess-evpn-l3vpn- multihoming-00.txt I did not get that either until Ali confirmed that in the meeting. I had thought that SPEs were running regular L3VPN (not EVPN) but the ones = that a CE multi-home to would also use EVPN procedures. Now it looks like t= here is no "regular" L3VPN - everything is EVPN. Jeffrey From: BESS [mailto:bess-bounces@ietf.org] On Behalf Of Henderickx, Wim (Wim= ) Sent: Thursday, November 05, 2015 2:25 PM To: bess@ietf.org Subject: [bess] draft-sajassi-bess-evpn-l3vpn- multihoming-00.txt Maybe good to clarify in this draft which nodes are involved in EVPN from t= he drawing on p3 in https://www.ietf.org/proceedings/94/slides/slides-94-be= ss-11.pdf? Did I understood correctly in the meeting that this is required between all= SPE(s), if so why? --_000_D262E78015FD83sajassiciscocom_ Content-Type: text/html; charset="iso-8859-1" Content-ID: Content-Transfer-Encoding: quoted-printable

Wim,  
The draft currently assumes that all the S-PEs are EVPN PEs. However, = the remote S-PEs really don’t have to be EVPN PEs. They can be IP-VPN= PEs and we can use evpn-ipvpn-interop draft for the interoperability betwe= en the two types. On the other hand, the S-PEs in the redundancy group have to be EVPN PEs. 

Now, regarding using local edge PIC on the SPEs, it doesn’t give= you the sych-up of prefixes for VRFs and ARP cache tables. We are talking = about a single BGP session between the CE and S-PEs. And upon failure, we a= re talking about non-stop forwarding with min. traffic disruption. 

-Ali

From: BESS <bess-bounces@ietf.org> on behalf of "Hende= rickx, Wim (Wim)" <wim.henderickx@alcatel-lucent.com>
Date: Thursday, November 5, 2015 at= 1:17 AM
To: "Jakob Heitz (jheitz)"= ; <jheitz@cisco.com>, "J= effrey (Zhaohui) Zhang" <zzha= ng@juniper.net>, "bess@ietf.or= g" <bess@ietf.org>
Subject: Re: [bess] draft-sajassi-b= ess-evpn-l3vpn- multihoming-00.txt

Jakob, thx this is clear.
What I see is that the benefits of ESI and Mass withdraw indication ar= e also solved based on implementation. By using PW/tunnel indications and l= ocal Edge PIC on the SPE connected to the access network can enable the sam= e behaviour with similar convergence results.


From: "Jakob Heitz (jheitz)&qu= ot; <jheitz@cisco.com>
Date: Thursday 5 November 2015 at 1= 5:44
To: Wim Henderickx <wim.henderickx@alcatel-lucent.com<= /a>>, "Jeffrey (Zhaohui) Zhang" <zzhang@juniper.net>, "bess@ietf.org" <bess@ietf.org>
Subject: RE: draft-sajassi-bess-evp= n-l3vpn- multihoming-00.txt

The point is that the CE does not real= ize that it is multihomed.

The access node implements the multiho= ming, but the CE has only one BGP session and one interface.

The APE-SPE connections is an ethernet= with the same ESI towards SPE1 and SPE2

The SPEs talk EVPN, using route type 5= to implement an L3VPN service.

This provides the ESI and mass withdra= wal that RFC4364 routes do not.

 

--Jakob

 

From: BESS [m= ailto:bess-bounces@ietf.org] On Behalf Of Henderickx, Wim (Wim)
Sent: Wednesday, November 04, 2015 9:46 PM
To: Jeffrey (Zhaohui) Zhang <zzhang@juniper.net>; bess@ietf.org
Subject: Re: [bess] draft-sajassi-bess-evpn-l3vpn- multihoming-00.tx= t

 

IF you do Edge-PIC this is optional afais.

 

From: = "Jeffrey (Zhaohui) Zhang" <zzhang@juniper.net>
Date: Thursday 5 November 2015 at 14:44
To: Wim Henderickx <wim.henderickx@alcatel-lucent.com>, "bess@ietf.org" <bess@ietf.org>
Subject: RE: draft-sajassi-bess-evpn-l3vpn- multihoming-00.txt<= /o:p>

 

My understanding is that an IP-VPN = PE would not be able take advantage of “mass-withdraw”?<= span style=3D"color:black">

 <= /span>

From: Henderickx, Wim (Wim= ) [mailto:wim.henderic= kx@alcatel-lucent.com]
Sent: Thursday, November 05, 2015 2:42 PM
To: Jeffrey (Zhaohui) Zhang <zzhang@juniper.net>; bess@ietf.org
Subject: Re: draft-sajassi-bess-evpn-l3vpn- multihoming-00.txt

 =

Is the draft assuming also IP-VPN in the cor= e or only EVPN?

I don’t see a reason for excluding one= or another

 

From: = "Jeffrey (Zhaohui) Zhang" <zzhang@juniper.net>
Date: Thursday 5 November 2015 at 14:40
To: Wim Henderickx <wim.henderickx@alcatel-lucent.com>, "bess@ietf.org" <bess@ietf.org>
Subject: RE: draft-sajassi-bess-evpn-l3vpn- multihoming-00.txt

 

I did not get that either until Ali= confirmed that in the meeting.

 

I had thought that SPEs were runnin= g regular L3VPN (not EVPN) but the ones that a CE multi-home to would also = use EVPN procedures. Now it looks like there is no “regular” L3VPN – everything is EVPN.=

 

Jeffrey

 

From: BESS [mailto:bess-bounces@ietf.org] On Behalf Of Henderickx, Wim (Wim)
Sent: Thursday, November 05, 2015 2:25 PM
To: bess@ietf.org
Subject: [bess] draft-sajassi-bess-evpn-l3vpn- multihoming-00.txt

 =

Maybe good to clarify in this draft which no= des are involved in EVPN from the drawing on p3 in https://www.ietf.org/proceedings/94/slides/slides-94-bess-11.pdf?

Did I understood correctly in the meeting th= at this is required between all SPE(s), if so why?

 

--_000_D262E78015FD83sajassiciscocom_-- From nobody Fri Nov 6 07:44:01 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 2395F1ACC83 for ; Fri, 6 Nov 2015 07:44:00 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.91 X-Spam-Level: X-Spam-Status: No, score=-6.91 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_HI=-5, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id y8ovZduLMEQi for ; Fri, 6 Nov 2015 07:43:57 -0800 (PST) Received: from smtp-fr.alcatel-lucent.com (fr-hpida-esg-02.alcatel-lucent.com [135.245.210.21]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with 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A0D2AQCcPj1W/5JdJa1egm5NU28GviIBDYFhIYVvAoE1OBQBAQEBAQEBgQqENQEBAQICLVwCAQgRAwEBASEHBzIUCQgCBAESiC4NwRQBAQEBAQEBAQEBAQEBAQEBAQEBAQEUBItShClSDQmEKAWIHY4rAY0knEMBHwEBQoIRBRiBVnIBhAyBBwEBAQ X-IronPort-AV: E=Sophos; i="5.20,254,1444694400"; d="scan'208,217"; a="48413755" Received: from rcdn-core-10.cisco.com ([173.37.93.146]) by rcdn-iport-1.cisco.com with ESMTP/TLS/DHE-RSA-AES256-SHA; 07 Nov 2015 00:02:03 +0000 Received: from XCH-RTP-013.cisco.com (xch-rtp-013.cisco.com [64.101.220.153]) by rcdn-core-10.cisco.com (8.14.5/8.14.5) with ESMTP id tA7021FE029970 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL); Sat, 7 Nov 2015 00:02:02 GMT Received: from xch-rtp-005.cisco.com (64.101.220.145) by XCH-RTP-013.cisco.com (64.101.220.153) with Microsoft SMTP Server (TLS) id 15.0.1104.5; Fri, 6 Nov 2015 19:02:01 -0500 Received: from xch-rtp-005.cisco.com ([64.101.220.145]) by XCH-RTP-005.cisco.com ([64.101.220.145]) with mapi id 15.00.1104.000; Fri, 6 Nov 2015 19:02:01 -0500 From: "Ali Sajassi (sajassi)" To: "Henderickx, Wim (Wim)" , "Jakob Heitz (jheitz)" , "Jeffrey (Zhaohui) Zhang" , "bess@ietf.org" Thread-Topic: [bess] draft-sajassi-bess-evpn-l3vpn- multihoming-00.txt Thread-Index: AQHRGKHvsn7Nr7mXNE68X02/uRPdZJ6PIpOAgAFlIQA= Date: Sat, 7 Nov 2015 00:02:01 +0000 Message-ID: References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/14.5.7.151005 x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.24.86.207] Content-Type: multipart/alternative; boundary="_000_D2636E72160084sajassiciscocom_" MIME-Version: 1.0 Archived-At: Subject: Re: [bess] draft-sajassi-bess-evpn-l3vpn- multihoming-00.txt X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 07 Nov 2015 00:02:09 -0000 --_000_D2636E72160084sajassiciscocom_ Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable We=92ll do. From: "Henderickx, Wim (Wim)" > Date: Friday, November 6, 2015 at 8:43 AM To: Cisco Employee >, "Jakob He= itz (jheitz)" >, "Jeffrey (Zhaohu= i) Zhang" >, "bess@ietf.org" > Subject: Re: [bess] draft-sajassi-bess-evpn-l3vpn- multihoming-00.txt Ali, ok I see the ARP cache sync and customer route sync is a benefit. Mayb= e we should make this clearer in the draft. From: Ali Sajassi > Date: Friday 6 November 2015 at 15:46 To: Wim Henderickx >, "Jakob Heitz (jheitz)" >, "Jeffrey (Zhaohui) Zhang" >, "bess@ietf.org" > Subject: Re: [bess] draft-sajassi-bess-evpn-l3vpn- multihoming-00.txt Wim, The draft currently assumes that all the S-PEs are EVPN PEs. However, the r= emote S-PEs really don=92t have to be EVPN PEs. They can be IP-VPN PEs and = we can use evpn-ipvpn-interop draft for the interoperability between the tw= o types. On the other hand, the S-PEs in the redundancy group have to be EV= PN PEs. Now, regarding using local edge PIC on the SPEs, it doesn=92t give you the = sych-up of prefixes for VRFs and ARP cache tables. We are talking about a s= ingle BGP session between the CE and S-PEs. And upon failure, we are talkin= g about non-stop forwarding with min. traffic disruption. -Ali From: BESS > on behalf = of "Henderickx, Wim (Wim)" > Date: Thursday, November 5, 2015 at 1:17 AM To: "Jakob Heitz (jheitz)" >, "Je= ffrey (Zhaohui) Zhang" >, "be= ss@ietf.org" > Subject: Re: [bess] draft-sajassi-bess-evpn-l3vpn- multihoming-00.txt Jakob, thx this is clear. What I see is that the benefits of ESI and Mass withdraw indication are als= o solved based on implementation. By using PW/tunnel indications and local = Edge PIC on the SPE connected to the access network can enable the same beh= aviour with similar convergence results. From: "Jakob Heitz (jheitz)" > Date: Thursday 5 November 2015 at 15:44 To: Wim Henderickx >, "Jeffrey (Zhaohui) Zhang" >, "bess@ietf.org" > Subject: RE: draft-sajassi-bess-evpn-l3vpn- multihoming-00.txt The point is that the CE does not realize that it is multihomed. The access node implements the multihoming, but the CE has only one BGP ses= sion and one interface. The APE-SPE connections is an ethernet with the same ESI towards SPE1 and S= PE2 The SPEs talk EVPN, using route type 5 to implement an L3VPN service. This provides the ESI and mass withdrawal that RFC4364 routes do not. --Jakob From: BESS [mailto:bess-bounces@ietf.org] On Behalf Of Henderickx, Wim (Wim= ) Sent: Wednesday, November 04, 2015 9:46 PM To: Jeffrey (Zhaohui) Zhang >= ; bess@ietf.org Subject: Re: [bess] draft-sajassi-bess-evpn-l3vpn- multihoming-00.txt IF you do Edge-PIC this is optional afais. From: "Jeffrey (Zhaohui) Zhang" > Date: Thursday 5 November 2015 at 14:44 To: Wim Henderickx >, "bess@ietf.org" > Subject: RE: draft-sajassi-bess-evpn-l3vpn- multihoming-00.txt My understanding is that an IP-VPN PE would not be able take advantage of = =93mass-withdraw=94? From: Henderickx, Wim (Wim) [mailto:wim.henderickx@alcatel-lucent.com] Sent: Thursday, November 05, 2015 2:42 PM To: Jeffrey (Zhaohui) Zhang >= ; bess@ietf.org Subject: Re: draft-sajassi-bess-evpn-l3vpn- multihoming-00.txt Is the draft assuming also IP-VPN in the core or only EVPN? I don=92t see a reason for excluding one or another From: "Jeffrey (Zhaohui) Zhang" > Date: Thursday 5 November 2015 at 14:40 To: Wim Henderickx >, "bess@ietf.org" > Subject: RE: draft-sajassi-bess-evpn-l3vpn- multihoming-00.txt I did not get that either until Ali confirmed that in the meeting. I had thought that SPEs were running regular L3VPN (not EVPN) but the ones = that a CE multi-home to would also use EVPN procedures. Now it looks like t= here is no =93regular=94 L3VPN =96 everything is EVPN. Jeffrey From: BESS [mailto:bess-bounces@ietf.org] On Behalf Of Henderickx, Wim (Wim= ) Sent: Thursday, November 05, 2015 2:25 PM To: bess@ietf.org Subject: [bess] draft-sajassi-bess-evpn-l3vpn- multihoming-00.txt Maybe good to clarify in this draft which nodes are involved in EVPN from t= he drawing on p3 in https://www.ietf.org/proceedings/94/slides/slides-94-be= ss-11.pdf? Did I understood correctly in the meeting that this is required between all= SPE(s), if so why? --_000_D2636E72160084sajassiciscocom_ Content-Type: text/html; charset="Windows-1252" Content-ID: <704EB74F67ACB6459525A64C6C2791FE@emea.cisco.com> Content-Transfer-Encoding: quoted-printable

We=92ll do.

From: "Henderickx, Wim (Wim)&q= uot; <wim.henderick= x@alcatel-lucent.com>
Date: Friday, November 6, 2015 at 8= :43 AM
To: Cisco Employee <sajassi@cisco.com>, "Jakob Heitz (jhei= tz)" <jheitz@cisco.com>,= "Jeffrey (Zhaohui) Zhang" <zzhang@juniper.net>, "bess@ietf.org" <bess@ietf.org>
Subject: Re: [bess] draft-sajassi-b= ess-evpn-l3vpn- multihoming-00.txt

Ali, ok I see the ARP cache sync and customer route sync is a benefit.= Maybe we should make this clearer in the draft.

From: Ali Sajassi <sajassi@cisco.com>
Date: Friday 6 November 2015 at 15:= 46
To: Wim Henderickx <wim.henderickx@alcatel-lucent.com<= /a>>, "Jakob Heitz (jheitz)" <jheitz@cisco.com>, "Jeffrey (Zhaohui) Zhang" <zzhang@juniper.net>, "bess@ietf.org" <bess@ietf.org>
Subject: Re: [bess] draft-sajassi-b= ess-evpn-l3vpn- multihoming-00.txt


Wim,  
The draft currently assumes that all the S-PEs are EVPN PEs. However, = the remote S-PEs really don=92t have to be EVPN PEs. They can be IP-VPN PEs= and we can use evpn-ipvpn-interop draft for the interoperability between t= he two types. On the other hand, the S-PEs in the redundancy group have to be EVPN PEs. 

Now, regarding using local edge PIC on the SPEs, it doesn=92t give you= the sych-up of prefixes for VRFs and ARP cache tables. We are talking abou= t a single BGP session between the CE and S-PEs. And upon failure, we are t= alking about non-stop forwarding with min. traffic disruption. 

-Ali

From: BESS <bess-bounces@ietf.org> on behalf of "Hende= rickx, Wim (Wim)" <wim.henderickx@alcatel-lucent.com>
Date: Thursday, November 5, 2015 at= 1:17 AM
To: "Jakob Heitz (jheitz)"= ; <jheitz@cisco.com>, "J= effrey (Zhaohui) Zhang" <zzha= ng@juniper.net>, "bess@ietf.or= g" <bess@ietf.org>
Subject: Re: [bess] draft-sajassi-b= ess-evpn-l3vpn- multihoming-00.txt

Jakob, thx this is clear.
What I see is that the benefits of ESI and Mass withdraw indication ar= e also solved based on implementation. By using PW/tunnel indications and l= ocal Edge PIC on the SPE connected to the access network can enable the sam= e behaviour with similar convergence results.


From: "Jakob Heitz (jheitz)&qu= ot; <jheitz@cisco.com>
Date: Thursday 5 November 2015 at 1= 5:44
To: Wim Henderickx <wim.henderickx@alcatel-lucent.com<= /a>>, "Jeffrey (Zhaohui) Zhang" <zzhang@juniper.net>, "bess@ietf.org" <bess@ietf.org>
Subject: RE: draft-sajassi-bess-evp= n-l3vpn- multihoming-00.txt

The point is that the CE does not real= ize that it is multihomed.

The access node implements the multiho= ming, but the CE has only one BGP session and one interface.

The APE-SPE connections is an ethernet= with the same ESI towards SPE1 and SPE2

The SPEs talk EVPN, using route type 5= to implement an L3VPN service.

This provides the ESI and mass withdra= wal that RFC4364 routes do not.

 

--Jakob

 

From: BESS [m= ailto:bess-bounces@ietf.org] On Behalf Of Henderickx, Wim (Wim)
Sent: Wednesday, November 04, 2015 9:46 PM
To: Jeffrey (Zhaohui) Zhang <zzhang@juniper.net>; bess@ietf.org
Subject: Re: [bess] draft-sajassi-bess-evpn-l3vpn- multihoming-00.tx= t

 

IF you do Edge-PIC this is optional afais.

 

From: = "Jeffrey (Zhaohui) Zhang" <zzhang@juniper.net>
Date: Thursday 5 November 2015 at 14:44
To: Wim Henderickx <wim.henderickx@alcatel-lucent.com>, "bess@ietf.org" <bess@ietf.org>
Subject: RE: draft-sajassi-bess-evpn-l3vpn- multihoming-00.txt<= /o:p>

 

My understanding is that an IP-VPN = PE would not be able take advantage of =93mass-withdraw=94?

 <= /span>

From: Henderickx, Wim (Wim= ) [mailto:wim.henderic= kx@alcatel-lucent.com]
Sent: Thursday, November 05, 2015 2:42 PM
To: Jeffrey (Zhaohui) Zhang <zzhang@juniper.net>; bess@ietf.org
Subject: Re: draft-sajassi-bess-evpn-l3vpn- multihoming-00.txt

 =

Is the draft assuming also IP-VPN in the cor= e or only EVPN?

I don=92t see a reason for excluding one or = another

 

From: = "Jeffrey (Zhaohui) Zhang" <zzhang@juniper.net>
Date: Thursday 5 November 2015 at 14:40
To: Wim Henderickx <wim.henderickx@alcatel-lucent.com>, "bess@ietf.org" <bess@ietf.org>
Subject: RE: draft-sajassi-bess-evpn-l3vpn- multihoming-00.txt

 

I did not get that either until Ali= confirmed that in the meeting.

 

I had thought that SPEs were runnin= g regular L3VPN (not EVPN) but the ones that a CE multi-home to would also = use EVPN procedures. Now it looks like there is no =93regular=94 L3VPN =96 everything is EVPN.

 

Jeffrey

 

From: BESS [mailto:bess-bounces@ietf.org] On Behalf Of Henderickx, Wim (Wim)
Sent: Thursday, November 05, 2015 2:25 PM
To: bess@ietf.org
Subject: [bess] draft-sajassi-bess-evpn-l3vpn- multihoming-00.txt

 =

Maybe good to clarify in this draft which no= des are involved in EVPN from the drawing on p3 in https://www.ietf.org/proceedings/94/slides/slides-94-bess-11.pdf?

Did I understood correctly in the meeting th= at this is required between all SPE(s), if so why?

 

--_000_D2636E72160084sajassiciscocom_-- From nobody Sat Nov 7 02:10:14 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 04E931AC3E9 for ; Sat, 7 Nov 2015 02:10:13 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.997 X-Spam-Level: X-Spam-Status: No, score=-1.997 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, MALFORMED_FREEMAIL=0.001, MIME_QP_LONG_LINE=0.001, SPF_PASS=-0.001] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 6mjmLbhYWoLr for ; Sat, 7 Nov 2015 02:10:11 -0800 (PST) Received: from mail-wm0-x232.google.com (mail-wm0-x232.google.com [IPv6:2a00:1450:400c:c09::232]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id AFE1B1A906D for ; Sat, 7 Nov 2015 02:10:10 -0800 (PST) Received: by wmnn186 with SMTP id n186so60294760wmn.1 for ; Sat, 07 Nov 2015 02:10:09 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=user-agent:date:subject:from:to:message-id:thread-topic:references :in-reply-to:mime-version:content-type; bh=5Zv+F7HoEg/3JXcXzW+IT2ALgZHxeofhIiA21Oj32+0=; b=tOJL9jPca5FvEwwTe+rJRVzQm31SvIRGCZuqHz8ajqqa5mfUgoBD/cui4B0FnPeQeO vI4St8IxAwFKAeEQaTCqbIeL7KJvU25BYKfed8Jlh+embMxfKQ9PDg0KQmtFuvsGsQyG RQ23NvgjbQP6pmCtnK++wW7Z/LXID/YZMljlZy6gm4uZW51BUoEbXVcpnyG2ivpMrlUz nASSZqPTN+QKu+swIPVEDWHlJT8jeQnSMP1QBQVGkvIWCJlpQPl1bBi4V4iNYJ+vKD5E Zs4N8z8VNBdQ0E71iqScKSuShEz8m28tNmp/GUzd3pFZsmTvJ/rTpT2mDuDZv53+n4Q1 k1dQ== X-Received: by 10.28.137.82 with SMTP id l79mr15617096wmd.95.1446891009146; Sat, 07 Nov 2015 02:10:09 -0800 (PST) Received: from [135.244.192.51] (94-227-76-79.access.telenet.be. [94.227.76.79]) by smtp.gmail.com with ESMTPSA id j4sm3218941wmg.18.2015.11.07.02.10.07 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 07 Nov 2015 02:10:08 -0800 (PST) User-Agent: Microsoft-MacOutlook/0.0.0.151008 Date: Sat, 07 Nov 2015 11:10:06 +0100 From: Wim Henderickx To: "Ali Sajassi (sajassi)" , "bess@ietf.org" Message-ID: Thread-Topic: [bess] draft-sajassi-bess-pbb-evpn-anycast-ip- tunnels-00.txt References: In-Reply-To: Mime-version: 1.0 Content-type: multipart/alternative; boundary="B_3529739407_265376338" Archived-At: Subject: Re: [bess] draft-sajassi-bess-pbb-evpn-anycast-ip- tunnels-00.txt X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 07 Nov 2015 10:10:13 -0000 > This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. --B_3529739407_265376338 Content-type: text/plain; charset="UTF-8" Content-transfer-encoding: quoted-printable First if this is a requirement it should be listed in section 2. For known unicast traffic the document describes a upstream hash function i= n section 4.2.1. For BUM traffic It describes the SHG/DF procedures but there is no guarante= e described that the downstream DF is similar to the upstream hash or IGP di= stance in case of unequal cost. As such I don=E2=80=99t see how for BUM traffic th= e consistency between upstream and downstream is guaranteed? (section 4.2.2.= ) From: Ali Sajassi Date: Friday 6 November 2015 at 15:14 To: Wim Henderickx , "bess@ietf.org" Subject: Re: [bess] draft-sajassi-bess-pbb-evpn-anycast-ip- tunnels-00.txt Hi Wim, If you can tell me what part of the draft is not clear, I will explain it h= ere and if any further clarification in the draft needed, I will take care o= f it. Cheers, Ali From: BESS on behalf of Wim Henderickx Date: Wednesday, November 4, 2015 at 10:58 PM To: "bess@ietf.org" Subject: [bess] draft-sajassi-bess-pbb-evpn-anycast-ip- tunnels-00.txt After clarification in the meeting I learned it is a requirement to select = the same PE for upstream/downstream traffic. My question is how is this done? Or better which mechanisms are used to ach= ieve this? --B_3529739407_265376338 Content-type: text/html; charset="UTF-8" Content-transfer-encoding: quoted-printable
First if this is a  = ;requirement it should be listed in section 2.

For = known unicast traffic the document describes a upstream hash function in sec= tion 4.2.1.
For BUM traffic It describes the SHG/DF procedures but= there is no guarantee described that the downstream DF is similar to the up= stream hash or IGP distance in case of unequal cost. As such I don’t s= ee how for BUM traffic the consistency between upstream and downstream is gu= aranteed? (section 4.2.2.)
<= /div>

From: Ali Saja= ssi <sajassi@cisco.com>
Date: Friday 6 November 2015 at 15:14
= To: Wim Henderickx <wim.henderickx@gmail.com>, "bess@ietf.org" <bess= @ietf.org>
Subject: Re: [be= ss] draft-sajassi-bess-pbb-evpn-anycast-ip- tunnels-00.txt

Hi Wim,

<= div>If you can tell me what part of the draft is not clear, I will explain i= t here and if any further clarification in the draft needed, I will take car= e of it.

Cheers,
Ali

=
From: BESS <bess-bounces@ietf.org> on behalf of Wim Henderickx= <wim.henderickx@gmail.com&= gt;
Date: Wednesday, November 4, 20= 15 at 10:58 PM
To: "bess@ietf.org" <bess@i= etf.org>
Subject: [bess] dra= ft-sajassi-bess-pbb-evpn-anycast-ip- tunnels-00.txt

=
After clarification in the meeting = I learned it is a requirement to select the same PE for upstream/downstream = traffic.
My question is how is this done? Or better which mechanis= ms are used to achieve this?
--B_3529739407_265376338-- From nobody Sun Nov 8 01:06:38 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 25D891ACE11 for ; Sun, 8 Nov 2015 01:06:37 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.51 X-Spam-Level: X-Spam-Status: No, score=-14.51 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_HI=-5, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id hUg1R1S0Au1z for ; Sun, 8 Nov 2015 01:06:34 -0800 (PST) Received: from rcdn-iport-4.cisco.com (rcdn-iport-4.cisco.com [173.37.86.75]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id A46641ACE10 for ; Sun, 8 Nov 2015 01:06:34 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=8165; q=dns/txt; s=iport; t=1446973595; x=1448183195; h=from:to:subject:date:message-id:references:in-reply-to: mime-version; bh=g+C9M6kMeGHcyb6+ao+GA+Jjt7EIgN6g50t6ahUpcjQ=; b=OLRfaXh9euR5BXI1fcqAgR+pwrG9LiqygyJPsdDmxSizczZ5Sf73Lpvm gB16z+As+zGtBWxPpmEzGHEPMTCZ3Wa7Wx2gItPPB4ohLiRDA63iRLioM BwXOOfoM9pe1eeEmSCxj1CjionxWTm2uIiq0itXxOEITTbFKiulE99DeI g=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A0D1AQBYDz9W/4kNJK1egm5NgUIGviYBDYFhhhACgRg4FAEBAQEBAQGBCoQ1AQEBBIEJAgEIEQMBAigHIREUCQgCBAESiBkDErxHDYQ/AQEBAQEBAQMBAQEBAQEdi1KCU4IohD4FjVSIdAGLMYF1lHKHUgEfAQFCghAegVZyhF+BBwEBAQ X-IronPort-AV: E=Sophos; i="5.20,261,1444694400"; d="scan'208,217"; a="44877862" Received: from alln-core-4.cisco.com ([173.36.13.137]) by rcdn-iport-4.cisco.com with ESMTP; 08 Nov 2015 09:06:34 +0000 Received: from XCH-RTP-002.cisco.com (xch-rtp-002.cisco.com [64.101.220.142]) by alln-core-4.cisco.com (8.14.5/8.14.5) with ESMTP id tA896Wcj031357 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL); Sun, 8 Nov 2015 09:06:33 GMT Received: from xch-rtp-005.cisco.com (64.101.220.145) by XCH-RTP-002.cisco.com (64.101.220.142) with Microsoft SMTP Server (TLS) id 15.0.1104.5; Sun, 8 Nov 2015 04:06:32 -0500 Received: from xch-rtp-005.cisco.com ([64.101.220.145]) by XCH-RTP-005.cisco.com ([64.101.220.145]) with mapi id 15.00.1104.000; Sun, 8 Nov 2015 04:06:32 -0500 From: "Ali Sajassi (sajassi)" To: Wim Henderickx , "bess@ietf.org" Thread-Topic: [bess] draft-sajassi-bess-pbb-evpn-anycast-ip- tunnels-00.txt Thread-Index: AQHRGJ1pa0NWtCzMxU6133++X84SJp6Qq4oAgAIXboA= Date: Sun, 8 Nov 2015 09:06:32 +0000 Message-ID: References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/14.5.7.151005 x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.24.120.58] Content-Type: multipart/alternative; boundary="_000_D26533AD16062Asajassiciscocom_" MIME-Version: 1.0 Archived-At: Subject: Re: [bess] draft-sajassi-bess-pbb-evpn-anycast-ip- tunnels-00.txt X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 08 Nov 2015 09:06:37 -0000 --_000_D26533AD16062Asajassiciscocom_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable It is not a hard requirement. I will add it as a soft requirement (e.g., ei= ther SHOULD or MAY) and it would only be for known unicast traffic - i.e., = upstream and downstream traffic per VNI can be guaranteed to go through the= same PE for known unicast if the operator chooses so. Cheers, Ali From: Wim Henderickx > Date: Saturday, November 7, 2015 at 7:10 PM To: Cisco Employee >, "bess@iet= f.org" > Subject: Re: [bess] draft-sajassi-bess-pbb-evpn-anycast-ip- tunnels-00.txt First if this is a requirement it should be listed in section 2. For known unicast traffic the document describes a upstream hash function i= n section 4.2.1. For BUM traffic It describes the SHG/DF procedures but there is no guarante= e described that the downstream DF is similar to the upstream hash or IGP d= istance in case of unequal cost. As such I don't see how for BUM traffic th= e consistency between upstream and downstream is guaranteed? (section 4.2.2= .) From: Ali Sajassi > Date: Friday 6 November 2015 at 15:14 To: Wim Henderickx >, "bess@ietf.org" > Subject: Re: [bess] draft-sajassi-bess-pbb-evpn-anycast-ip- tunnels-00.txt Hi Wim, If you can tell me what part of the draft is not clear, I will explain it h= ere and if any further clarification in the draft needed, I will take care = of it. Cheers, Ali From: BESS > on behalf = of Wim Henderickx > Date: Wednesday, November 4, 2015 at 10:58 PM To: "bess@ietf.org" > Subject: [bess] draft-sajassi-bess-pbb-evpn-anycast-ip- tunnels-00.txt After clarification in the meeting I learned it is a requirement to select = the same PE for upstream/downstream traffic. My question is how is this done? Or better which mechanisms are used to ach= ieve this? --_000_D26533AD16062Asajassiciscocom_ Content-Type: text/html; charset="iso-8859-1" Content-ID: <604936C67227754E9D8B6FC7BE05148C@emea.cisco.com> Content-Transfer-Encoding: quoted-printable

It is not a hard requirement. I will add it as a soft requirement (e.g= ., either SHOULD or MAY) and it would only be for known unicast traffic - i= .e., upstream and downstream traffic per VNI can be guaranteed to go throug= h the same PE for known unicast if the operator chooses so.

Cheers,
Ali

From: Wim Henderickx <wim.henderickx@gmail.com>
Date: Saturday, November 7, 2015 at= 7:10 PM
To: Cisco Employee <sajassi@cisco.com>, "bess@ietf.org" <bess@ietf.org>
Subject: Re: [bess] draft-sajassi-b= ess-pbb-evpn-anycast-ip- tunnels-00.txt

First if this is a  requirement it should be listed in section 2.=

For known unicast traffic the document describes a upstream hash funct= ion in section 4.2.1.
For BUM traffic It describes the SHG/DF procedures but there is no gua= rantee described that the downstream DF is similar to the upstream hash or = IGP distance in case of unequal cost. As such I don’t see how for BUM= traffic the consistency between upstream and downstream is guaranteed? (section 4.2.2.)

From: Ali Sajassi <sajassi@cisco.com>
Date: Friday 6 November 2015 at 15:= 14
To: Wim Henderickx <wim.henderickx@gmail.com>, "bess@ietf.org" <bess@ietf.org>
Subject: Re: [bess] draft-sajassi-b= ess-pbb-evpn-anycast-ip- tunnels-00.txt


Hi Wim,

If you can tell me what part of the draft is not clear, I will explain= it here and if any further clarification in the draft needed, I will take = care of it.

Cheers,
Ali

From: BESS <bess-bounces@ietf.org> on behalf of Wim Henderi= ckx <wim.henderickx@gmail.co= m>
Date: Wednesday, November 4, 2015 a= t 10:58 PM
To: "bess@ietf.org" <bess@i= etf.org>
Subject: [bess] draft-sajassi-bess-= pbb-evpn-anycast-ip- tunnels-00.txt

After clarification in the meeting I learned it is a requirement to se= lect the same PE for upstream/downstream traffic.
My question is how is this done? Or better which mechanisms are used t= o achieve this?
--_000_D26533AD16062Asajassiciscocom_-- From nobody Sun Nov 8 02:18:50 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 78B391A8A1F for ; Sun, 8 Nov 2015 02:18:49 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.997 X-Spam-Level: X-Spam-Status: No, score=-1.997 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, MALFORMED_FREEMAIL=0.001, MIME_QP_LONG_LINE=0.001, SPF_PASS=-0.001] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id MFJk5MQEXRAg for ; Sun, 8 Nov 2015 02:18:47 -0800 (PST) Received: from mail-wm0-x230.google.com (mail-wm0-x230.google.com [IPv6:2a00:1450:400c:c09::230]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id D90631A8A1C for ; Sun, 8 Nov 2015 02:18:46 -0800 (PST) Received: by wmww144 with SMTP id w144so56216253wmw.1 for ; Sun, 08 Nov 2015 02:18:45 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=user-agent:date:subject:from:to:message-id:thread-topic:references :in-reply-to:mime-version:content-type; bh=gdEJX6fDWYkT7diKU29VdO3+8FHMksSu/dfS6k9td3g=; b=Ep5g6jjEqbLseiqWtewbwr6IHvGgYHiA3WncMmN1uexEC9nM6B2WpSB6yYqRgTt3I7 3ncp9JVSV5PWVXdAv76yAHTD1XfcDuAa6N178MgnQewA7TBy2FabiARFv0tGCJlBXyc6 2Ss1rNRsm0IWsUUO3CiqCUggaNR1c0/O+80+F44Ly0cX/IjhoprcceopefMgLAqGHfom vS0h+ZfsfEOUlm1pCExC3YWsKFvGtn1nR96vGZtx4D5yU74NHPxPSLrBRCaM5KtCke3+ ujeasXMP8fY7aVz2NOy8L3HvAJwFzbULP/suyitqRf+Whwedb/L/5WiWNS7oeLNC+CiX RZMw== X-Received: by 10.28.93.145 with SMTP id r139mr19128987wmb.20.1446977925488; Sun, 08 Nov 2015 02:18:45 -0800 (PST) Received: from [135.244.192.61] (94-227-76-79.access.telenet.be. [94.227.76.79]) by smtp.gmail.com with ESMTPSA id he3sm9271318wjc.48.2015.11.08.02.18.44 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 08 Nov 2015 02:18:44 -0800 (PST) User-Agent: Microsoft-MacOutlook/0.0.0.151008 Date: Sun, 08 Nov 2015 11:18:42 +0100 From: Wim Henderickx To: "Ali Sajassi (sajassi)" , "bess@ietf.org" Message-ID: Thread-Topic: [bess] draft-sajassi-bess-pbb-evpn-anycast-ip- tunnels-00.txt References: In-Reply-To: Mime-version: 1.0 Content-type: multipart/alternative; boundary="B_3529826324_1016515943" Archived-At: Subject: Re: [bess] draft-sajassi-bess-pbb-evpn-anycast-ip- tunnels-00.txt X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 08 Nov 2015 10:18:49 -0000 > This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. --B_3529826324_1016515943 Content-type: text/plain; charset="UTF-8" Content-transfer-encoding: quoted-printable How will you do QoS guarantees if the BUM traffic is not accommodated in th= is scheme ? From: Ali Sajassi Date: Sunday 8 November 2015 at 10:06 To: Wim Henderickx , "bess@ietf.org" Subject: Re: [bess] draft-sajassi-bess-pbb-evpn-anycast-ip- tunnels-00.txt It is not a hard requirement. I will add it as a soft requirement (e.g., ei= ther SHOULD or MAY) and it would only be for known unicast traffic - i.e., u= pstream and downstream traffic per VNI can be guaranteed to go through the s= ame PE for known unicast if the operator chooses so. Cheers, Ali From: Wim Henderickx Date: Saturday, November 7, 2015 at 7:10 PM To: Cisco Employee , "bess@ietf.org" Subject: Re: [bess] draft-sajassi-bess-pbb-evpn-anycast-ip- tunnels-00.txt First if this is a requirement it should be listed in section 2. For known unicast traffic the document describes a upstream hash function i= n section 4.2.1. For BUM traffic It describes the SHG/DF procedures but there is no guarante= e described that the downstream DF is similar to the upstream hash or IGP di= stance in case of unequal cost. As such I don=E2=80=99t see how for BUM traffic th= e consistency between upstream and downstream is guaranteed? (section 4.2.2.= ) From: Ali Sajassi Date: Friday 6 November 2015 at 15:14 To: Wim Henderickx , "bess@ietf.org" Subject: Re: [bess] draft-sajassi-bess-pbb-evpn-anycast-ip- tunnels-00.txt Hi Wim, If you can tell me what part of the draft is not clear, I will explain it h= ere and if any further clarification in the draft needed, I will take care o= f it. Cheers, Ali From: BESS on behalf of Wim Henderickx Date: Wednesday, November 4, 2015 at 10:58 PM To: "bess@ietf.org" Subject: [bess] draft-sajassi-bess-pbb-evpn-anycast-ip- tunnels-00.txt After clarification in the meeting I learned it is a requirement to select = the same PE for upstream/downstream traffic. My question is how is this done? Or better which mechanisms are used to ach= ieve this? --B_3529826324_1016515943 Content-type: text/html; charset="UTF-8" Content-transfer-encoding: quoted-printable
How will you do QoS= guarantees if the BUM traffic is not accommodated in this scheme ?

From: Ali Sajassi <sajassi@cisco.com>
Da= te: Sunday 8 November 2015 at 10:06
To: Wim Henderickx <w= im.henderickx@gmail.com>, "bess@ietf.o= rg" <bess@ietf.org>
Subject: Re: [bess] draft-sajassi-bess-pbb-ev= pn-anycast-ip- tunnels-00.txt

=

It is not a hard requirement. I will add it as a soft re= quirement (e.g., either SHOULD or MAY) and it would only be for known unicas= t traffic - i.e., upstream and downstream traffic per VNI can be guaranteed = to go through the same PE for known unicast if the operator chooses so.

Cheers,
Ali=

From: Wim Hend= erickx <wim.henderickx@gmail.co= m>
Date: Saturday, November = 7, 2015 at 7:10 PM
To: Cisco Employ= ee <sajassi@cisco.com>, "bess@ietf.org" <bess@ietf.org>
Subject: R= e: [bess] draft-sajassi-bess-pbb-evpn-anycast-ip- tunnels-00.txt

First if this is a  re= quirement it should be listed in section 2.

For kno= wn unicast traffic the document describes a upstream hash function in sectio= n 4.2.1.
For BUM traffic It describes the SHG/DF procedures but th= ere is no guarantee described that the downstream DF is similar to the upstr= eam hash or IGP distance in case of unequal cost. As such I don’t see = how for BUM traffic the consistency between upstream and downstream is guaranteed? (section 4.2.2.)
=

From: Ali Saja= ssi <sajassi@cisco.com>
Date: Friday 6 November 2015 at 15:14
<= span style=3D"font-weight:bold">To: Wim Henderickx <wim.henderickx@gmail.com>, "bess@ietf.org" <bess@i= etf.org>
Subject: Re: [bess]= draft-sajassi-bess-pbb-evpn-anycast-ip- tunnels-00.txt


Hi Wim,

If you can tell me what part of the draft is not clear, I will explai= n it here and if any further clarification in the draft needed, I will take = care of it.

Cheers,
Ali

From: BESS <bess-bounces@ietf.org> on behalf of Wim Henderi= ckx <wim.henderickx@gmail.com>
Date: Wednesday, November 4,= 2015 at 10:58 PM
To: "
bess@ietf.org" <bes= s@ietf.org>
Subject: [bess] = draft-sajassi-bess-pbb-evpn-anycast-ip- tunnels-00.txt

After clarification in the meeti= ng I learned it is a requirement to select the same PE for upstream/downstre= am traffic.
My question is how is this done? Or better which mecha= nisms are used to achieve this?
--B_3529826324_1016515943-- From nobody Mon Nov 9 18:45:15 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id E10161A1B78; Mon, 9 Nov 2015 18:45:13 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.999 X-Spam-Level: X-Spam-Status: No, score=-1.999 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, SPF_PASS=-0.001] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id XMfhwN2tOoXE; Mon, 9 Nov 2015 18:45:11 -0800 (PST) Received: from mail-vk0-x229.google.com (mail-vk0-x229.google.com [IPv6:2607:f8b0:400c:c05::229]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 1648C1A1B1C; Mon, 9 Nov 2015 18:45:11 -0800 (PST) Received: by vkbk63 with SMTP id k63so5269557vkb.0; Mon, 09 Nov 2015 18:45:10 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=KI7+6wwxh1rMHietVmUk/UZMP5cTt2PwOA+GHpu4J5Q=; b=NjjplCHbl6DXBhpw53//gtcuXG58yotifIYom6deezerzCapmFxINoaGYj8M2i/bpk Gwe9Z06ysSCG/xk75zj98fmvlBSACHIh0BhyWeroV0a+/1HIIg3e+5ab2+GIeHgHXn/Y U9WON5+zVrwG6qOfPnNrgnDWOcrOTnUr8wX6el11vcCrlM+qWlPwlaxCCG4+QOQks4iT jN6kMPRmpeA8hwPDh7rv0Ji1tZ0BLTvzGMrvS5e63GdmUaYKUVopeT3JUfZ2Fi1RrqyR VnRew4Tr/MKdq9XI0iR2QsT9grW/MvHUAuXIwrpLWbfe06Dxrcca1ug1qTo7y/hUa9/f NQdw== MIME-Version: 1.0 X-Received: by 10.31.9.16 with SMTP id 16mr844395vkj.0.1447123510205; Mon, 09 Nov 2015 18:45:10 -0800 (PST) Received: by 10.31.3.106 with HTTP; Mon, 9 Nov 2015 18:45:10 -0800 (PST) In-Reply-To: <20401_1446455032_563726F7_20401_299_6_563726E7.4020401@orange.com> References: <20151102084255.28153.74720.idtracker@ietfa.amsl.com> <20401_1446455032_563726F7_20401_299_6_563726E7.4020401@orange.com> Date: Tue, 10 Nov 2015 10:45:10 +0800 Message-ID: From: Dapeng Liu To: thomas.morin@orange.com Content-Type: multipart/alternative; boundary=001a11441b74c5a1ed052426b2b8 Archived-At: Cc: bess-chairs@ietf.org, draft-hao-bess-inter-nvo3-vpn-optionc@ietf.org, IETF Secretariat , bess@ietf.org Subject: Re: [bess] The BESS WG has adopted draft-hao-bess-inter-nvo3-vpn-optionc (*not yet*, in fact) X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 10 Nov 2015 02:45:14 -0000 --001a11441b74c5a1ed052426b2b8 Content-Type: text/plain; charset=UTF-8 Hello all, I think this draft is in good shape, I personally support the adoption. One comments is that the security consideration section could be improved. Thanks, Dapeng Liu 2015-11-02 17:03 GMT+08:00 : > Please ignore this bogus automated email: the document is just being > called for adoption, and no decision will be taken before the call for > adoption is over. > > -Thomas > > 2015-11-02, IETF Secretariat: > >> >> The BESS WG has adopted draft-hao-bess-inter-nvo3-vpn-optionc (entered by >> Thomas Morin) >> >> The document is available at >> https://datatracker.ietf.org/doc/draft-hao-bess-inter-nvo3-vpn-optionc/ >> >> >> Comment: >> This poll runs until **November 13th**. >> >> > > > _________________________________________________________________________________________________________________________ > > Ce message et ses pieces jointes peuvent contenir des informations > confidentielles ou privilegiees et ne doivent donc > pas etre diffuses, exploites ou copies sans autorisation. Si vous avez > recu ce message par erreur, veuillez le signaler > a l'expediteur et le detruire ainsi que les pieces jointes. Les messages > electroniques etant susceptibles d'alteration, > Orange decline toute responsabilite si ce message a ete altere, deforme ou > falsifie. Merci. > > This message and its attachments may contain confidential or privileged > information that may be protected by law; > they should not be distributed, used or copied without authorisation. > If you have received this email in error, please notify the sender and > delete this message and its attachments. > As emails may be altered, Orange is not liable for messages that have been > modified, changed or falsified. > Thank you. > > _______________________________________________ > BESS mailing list > BESS@ietf.org > https://www.ietf.org/mailman/listinfo/bess > -- ------ Best Regards, Dapeng Liu --001a11441b74c5a1ed052426b2b8 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hello all,

I think this draft is in goo= d shape, I personally support the adoption.

One co= mments is that the security consideration section could be improved.
<= div>
Thanks,
Dapeng Liu

2015-11-02 17:03 GMT+08:00 <thoma= s.morin@orange.com>:
Please= ignore this bogus automated email: the document is just being called for a= doption, and no decision will be taken before the call for adoption is over= .

-Thomas

2015-11-02, IETF Secretariat:

The BESS WG has adopted draft-hao-bess-inter-nvo3-vpn-optionc (entered by Thomas Morin)

The document is available at
https://datatracker.ietf.org/= doc/draft-hao-bess-inter-nvo3-vpn-optionc/


Comment:
This poll runs until **November 13th**.



___________________________________________________________________________= ______________________________________________

Ce message et ses pieces jointes peuvent contenir des informations confiden= tielles ou privilegiees et ne doivent donc
pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu= ce message par erreur, veuillez le signaler
a l'expediteur et le detruire ainsi que les pieces jointes. Les message= s electroniques etant susceptibles d'alteration,
Orange decline toute responsabilite si ce message a ete altere, deforme ou = falsifie. Merci.

This message and its attachments may contain confidential or privileged inf= ormation that may be protected by law;
they should not be distributed, used or copied without authorisation.
If you have received this email in error, please notify the sender and dele= te this message and its attachments.
As emails may be altered, Orange is not liable for messages that have been = modified, changed or falsified.
Thank you.

_______________________________________________
BESS mailing list
BESS@ietf.org
https://www.ietf.org/mailman/listinfo/bess



--

------
Best Regards,
Dapeng Liu
--001a11441b74c5a1ed052426b2b8-- From nobody Mon Nov 9 23:11:17 2015 Return-Path: X-Original-To: bess@ietf.org Delivered-To: bess@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 9D4C81B342A; Mon, 9 Nov 2015 23:11:14 -0800 (PST) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: X-Test-IDTracker: no X-IETF-IDTracker: 6.9.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <20151110071114.31718.52347.idtracker@ietfa.amsl.com> Date: Mon, 09 Nov 2015 23:11:14 -0800 Archived-At: Cc: bess@ietf.org Subject: [bess] I-D Action: draft-ietf-bess-virtual-subnet-03.txt X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 10 Nov 2015 07:11:14 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the BGP Enabled Services Working Group of the IETF. Title : Virtual Subnet: A BGP/MPLS IP VPN-based Subnet Extension Solution Authors : Xiaohu Xu Robert Raszuk Christian Jacquenet Truman Boyes Brendan Fee Filename : draft-ietf-bess-virtual-subnet-03.txt Pages : 14 Date : 2015-11-09 Abstract: This document describes a BGP/MPLS IP VPN-based subnet extension solution referred to as Virtual Subnet, which can be used for building Layer 3 network virtualization overlays within and/or between data centers. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-bess-virtual-subnet/ There's also a htmlized version available at: https://tools.ietf.org/html/draft-ietf-bess-virtual-subnet-03 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-bess-virtual-subnet-03 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ From nobody Mon Nov 9 23:19:19 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 83DD21A00F3; Mon, 9 Nov 2015 23:19:17 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.76 X-Spam-Level: X-Spam-Status: No, score=-1.76 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, MIME_CHARSET_FARAWAY=2.45, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id c7VAeFwZfVgi; Mon, 9 Nov 2015 23:19:08 -0800 (PST) Received: from lhrrgout.huawei.com (lhrrgout.huawei.com [194.213.3.17]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by 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References: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0CB41789@NKGEML512-MBS.china.huawei.com> In-Reply-To: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0CB41789@NKGEML512-MBS.china.huawei.com> Accept-Language: zh-CN, en-US Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.111.99.55] Content-Type: multipart/alternative; boundary="_000_1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0CB44851NKGEML512MBSchi_" MIME-Version: 1.0 X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020206.56419A68.002A, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=169.254.8.187, so=2013-06-18 04:22:30, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: db6c799a1534ada4de41c016433eed6a Archived-At: Cc: "bess-chairs@ietf.org" , "VIGOUREUX, MARTIN \(MARTIN\)" , "bess@ietf.org" Subject: Re: [bess] AD Review of draft-ietf-bess-virtual-subnet-02 X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group 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Hi Alvaro,=

 = ;

We have up= dated the draft according to your comments and suggestions. Thanks again fo= r your AD review of this document.

 = ;

The IETF datatracker status = page for this draft is:

https://datatracker.ietf.o= rg/doc/draft-ietf-bess-virtual-subnet/

 

There's also a htmlized vers= ion available at:

https://tools.ietf.org/html/d= raft-ietf-bess-virtual-subnet-03

 

A diff from the previous ver= sion is available at:

https://www.ietf.org/= rfcdiff?url2=3Ddraft-ietf-bess-virtual-subnet-03

 = ;

Best regar= ds,

Xiaohu

 = ;

From: Xuxiaohu
Sent: Monday, November 02, 2015 1:04 PM
To: Alvaro Retana (aretana); draft-ietf-bess-virtual-subnet@ietf.org=
Cc: VIGOUREUX, MARTIN (MARTIN); bess-chairs@ietf.org; bess@ietf.org<= br> Subject: Re: AD Review of draft-ietf-bess-virtual-subnet-02

 

Hi Alvaro,

 

Thanks for your detailed AD revie= w. We will update the draft according to your comments soon.

 

Best regards,

Xiaohu (on behalf of all co-autho= rs)


=B7=A2=BC=FE=C8=CB: Alvaro Retana (aretana) [aretana@cisco.com]
=B7=A2=CB=CD=CA=B1= =BC=E4: 2015=C4=EA10=D4=C228<= span style=3D"font-size:10.0pt;color:black">=C8=D5 5:38
=CA=D5=BC=FE=C8=CB: draft-ietf-bess-= virtual-subnet@ietf.org
=B3=AD=CB=CD<= /b>: VIGOUREUX, MARTIN (MARTIN); bess-c= hairs@ietf.org; bess@ietf.org
=D6=F7=CC=E2<= /b>: AD Review of draft-ietf-bess-virtual-subnet-02

Dear authors= :

 <= /o:p>

I just finis= hed reading this document.  

 <= /o:p>

All of what = is described in this document is straight forward, so much so that it requi= res no change to existing technology, which makes me think that users/operators have been able to do this all along.  Is that co= rrect?  Is there anything special that was missing that this document = brings to light?  

 <= /o:p>

Being one of= several possible solutions for "network= virtualization overlays within and/or between data centers", I'm wondering about the value of publishing wh= at amounts to a set of use cases without even discussing when their use would be suitable (declared out of scope).  I reviewed the discus= sions on the lists (l3vpn/bess) and can clearly see why the Shepherd charac= terized the document as "could have been considered controversial"= ;.  Had I reviewed the document at adoption time I probably would have ended up in the rough side of the consensus.  T= here's obviously no need to revisit the topic of what do to with this docum= ent since clearly the WG Chairs believe there is consensus to publish.

 <= /o:p>

I do have so= me other comments (below). In general some of the text could be made easier= to read (see some nits below).  I would like to see my comment about rfc2119 language addressed (and an update published) before starting= the IETF Last Call.

 <= /o:p>

Thanks!=

 <= /o:p>

Alvaro.=

 <= /o:p>

 <= /o:p>

Major:<= /o:p>

  1. The use of rfc2119 keywords is not required. &n= bsp;Note that in general these keywords "MUST only be used where it is=  actually required for interoperation", but you're using them to = apparently express requirements w/out specific guidance or to restate what is normal = network operation .  For example:
    • In Section 3.3. (CE Host Discovery) the te= xt reads: "PE routers SHOULD be able to discover their local CE hosts= =A1=AD PE routers could accomplish local CE host discovery by=A1=ADARP or N= D=A1=ADLLDP=A1=ADVDP), or even interaction with the data center orchestration system=A1=AD" =  There is no specific mechanism mandated that supports the use of &quo= t;SHOULD".
    • In Section 3.4. (ARP/ND Proxy): "PE r= outers SHOULD only respond to an ARP request or Neighbor Solicitation (NS) = message for a target host when it has a best route for that target host in the associated VRF and the outgoing interface of that best route i= s different from the one over which the ARP request or NS message is receiv= ed."  Isn't this how proxy ARP already works?  Am I missing = something that requires the use of "SHOULD" in this document?
    • Section 4.3. (TTL and Traceroute) describe= s a limitation and then says "=A1=ADunless special TTL processing = ;for such case has been implemented (e.g., if the source and destinati= on addresses=A1=ADbelong to the same extended subnet, neither ingress nor egress PE routers SH= OULD decrement the TTL=A1=ADTTL of such packet SHOULD NOT be copi= ed into the TTL of the transport=A1=AD"  In this case the rfc2119= keywords are used as part of an example (e.g.)..which doesn't really support the use of "SHOULD/SHOULD NOT".  Is the intent to s= pecify this "special processing" in this document?  If so, w= hy "SHOULD" and not "MUST"?  Algo, given that the = text appears in the Limitations section, if you're mandating the "spec= ial processing" then it wouldn't be a limitation anymore..

Minor:<= /o:p>

  1. I think that RFC4761, 4762, 4659, 5798 and 6513= should be Informational references.
  2. You first use "VS" in Section 3.6. &n= bsp;I'm assuming this is related to "virtual subnet", but there's= no explicit association.
  3. Multicast.  Section 3.2. (Multicast) = says that for "IP multicast between CE hosts of the same virtual subne= t, MVPN technologies [RFC6513] could be directly used without any = ;change".  I'm assuming that you're not referring to link-local multicast (betw= een hosts on the same subnet) because later (Section 4.2) you say that &quo= t;link-local multicast traffic cannot be supported".  Please= clarify in 3.2 what type of multicast you're talking about, and/or which you're not.
  4. Section 4.3. (TTL and Traceroute).  W= hat does this mean: "traceroute output would reflect the fact that&nbs= p;these two hosts belonging to the same subnet are actually connected = via an virtual subnet emulated by ARP proxy, rather than a normal LAN"?=  I think I know, but please be specific in the text.<= /span>

 <= /o:p>

Nits:

  1. Section 1. (Introduction)
    • s/commonly used in those situations/commonly us= ed in situations
    • There are a couple of very long sentences that = could be simplified =A1=AA they make sense, but other reviewers may not cap= ture the essence.  Just a suggestion
      • OLD>
      •  
      • As a result, the traffic from a cloud user= (i.e., a VPN user) which
      • is destined for a given server located at one d= ata center
      • location of such extended subnet may arrive at = another data
      • center location firstly according to the subnet= route, and then
      • be forwarded to the location where the service = is actually
      • located.  This suboptimal routing would ob= viously result in an
      • unnecessary consumption of the bandwidth resour= ce between data
      • centers.  Furthermore, in the case where t= he traditional VPLS
      • technology [RFC4761] [RFC4762] is used for data= center
      • interconnect and default gateways of different = data center
      • locations are configured within the same virtua= l router
      • redundancy group, the returning traffic from th= at server to the
      • cloud user may be forwarded at layer2 to a defa= ult gateway
      • located at one of the remote data center premis= es, rather than
      • the one placed at the local data center locatio= n.  This
      • suboptimal routing would also unnecessarily con= sume the bandwidth
      • resource between data centers
      • NEW>
      •  
      • As a result, the traffic between a specific use= r and server, in different 
      • data centers, may first be routed through a thi= rd data center.
      • This suboptimal routing would obviously result = in an
      • unnecessary consumption of the bandwidth resour= ce between data
      • centers.  Furthermore, in the case where t= raditional VPLS
      • technology [RFC4761] [RFC4762] is used for data= center
      • interconnect, return traffic from a server may = be forwarded to a
      • default gateway located in a different data cen= ter due to the configuration
      • in a virtual router redundancy group.  Thi= s
      • suboptimal routing would also unnecessarily con= sume the bandwidth
      • resource between data centers.
  1. Please be consistent on how "Layer 2"= and "Layer 3" is used..it is not consistent now.  My person= al preference is "Layer x".
  2. s/CE hosts/hosts
  3. s/ARP proxy/an ARP proxy
  4. Missing references:  "Link Layer Disc= overy Protocol (LLDP)", "VSI Discovery and Configuration Protocol= (VDP)"
--_000_1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0CB44851NKGEML512MBSchi_-- From nobody Tue Nov 10 01:05:36 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 182CF1A8980 for ; Tue, 10 Nov 2015 01:05:34 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.21 X-Spam-Level: X-Spam-Status: No, score=-4.21 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id HQoJj8Lh3iF4 for ; Tue, 10 Nov 2015 01:05:31 -0800 (PST) Received: from lhrrgout.huawei.com (lhrrgout.huawei.com [194.213.3.17]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 30F2B1A8925 for ; Tue, 10 Nov 2015 01:05:31 -0800 (PST) Received: from 172.18.7.190 (EHLO lhreml404-hub.china.huawei.com) ([172.18.7.190]) by lhrrg02-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id CAD32593; Tue, 10 Nov 2015 09:05:28 +0000 (GMT) Received: from NKGEML410-HUB.china.huawei.com (10.98.56.41) by lhreml404-hub.china.huawei.com (10.201.5.218) with Microsoft SMTP Server (TLS) id 14.3.235.1; Tue, 10 Nov 2015 09:05:26 +0000 Received: from NKGEML501-MBS.china.huawei.com ([169.254.2.75]) by nkgeml410-hub.china.huawei.com ([10.98.56.41]) with mapi id 14.03.0235.001; Tue, 10 Nov 2015 17:05:21 +0800 From: Haoweiguo To: "sajassi@cisco.com" , "jdrake@juniper.net" Thread-Topic: One question about 'draft-ietf-bess-evpn-overlay-02' Thread-Index: AdEblm0XwLjZFZ1MT0KJmhdU0uo/vQ== Date: Tue, 10 Nov 2015 09:05:20 +0000 Message-ID: Accept-Language: en-US, zh-CN Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.135.23.94] Content-Type: multipart/alternative; boundary="_000_DD5FC8DE455C3348B94340C0AB5517334F8D6AA8nkgeml501mbschi_" MIME-Version: 1.0 X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020201.5641B358.0148, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=169.254.2.75, so=2013-06-18 04:22:30, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: dc6398c27f715a8b1fefc242fcbfca57 Archived-At: Cc: "bess@ietf.org" Subject: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 10 Nov 2015 09:05:34 -0000 --_000_DD5FC8DE455C3348B94340C0AB5517334F8D6AA8nkgeml501mbschi_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Ali & John, The draft of 'draft-ietf-bess-evpn-overlay-02' describes how EVPN can be us= ed for Overlay network, the overlay network includes VXLAN, NVGRE and MPLS = Over GRE. In section 13 IANA considerations, several overlay tunnel types are request= ed as follows: 8 VXLAN Encapsulation 9 NVGRE Encapsulation 10 MPLS Encapsulation (?) 11 MPLS in GRE Encapsulation 12 VXLAN GPE Encapsulation IMO, 8,9,11 and 12 are all overlay encapsulations, 10 is an exception. Woul= d you like to explain what's the purpose of tunnel type 10? Thanks, weiguo --_000_DD5FC8DE455C3348B94340C0AB5517334F8D6AA8nkgeml501mbschi_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Hi Ali & John,

The draft of 'draft-ietf-bess-evpn-ove= rlay-02' describes how EVPN can be used for Overlay network, the overlay ne= twork includes VXLAN, NVGRE and MPLS Over GRE.

In section 13 IANA considerations, sev= eral overlay tunnel types are requested as follows:

8    VXLAN Encapsulatio= n
9    NVGRE Encapsulation
10   MPLS Encapsulation   (?)
11   MPLS in GRE Encapsulation
12   VXLAN GPE Encapsulation

 

IMO, 8,9,11 and 12 are all overlay enc= apsulations, 10 is an exception. Would you like to explain what's the purpo= se of tunnel type 10?

 

Thanks,

weiguo

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ietfa.amsl.com (Postfix) with ESMTPS id 1DCD71B39DA for ; Tue, 10 Nov 2015 08:02:32 -0800 (PST) Received: from fr712usmtp2.zeu.alcatel-lucent.com (unknown [135.239.2.42]) by Websense Email Security Gateway with ESMTPS id 6A8A1346BFDB5; Tue, 10 Nov 2015 16:02:27 +0000 (GMT) Received: from FR711WXCHHUB01.zeu.alcatel-lucent.com (fr711wxchhub01.zeu.alcatel-lucent.com [135.239.2.111]) by fr712usmtp2.zeu.alcatel-lucent.com (GMO) with ESMTP id tAAG2O9C021777 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=FAIL); Tue, 10 Nov 2015 17:02:27 +0100 Received: from FR711WXCHMBA01.zeu.alcatel-lucent.com ([169.254.1.183]) by FR711WXCHHUB01.zeu.alcatel-lucent.com ([135.239.2.111]) with mapi id 14.03.0195.001; Tue, 10 Nov 2015 17:01:35 +0100 From: "Rabadan, Jorge (Jorge)" To: Haoweiguo , "sajassi@cisco.com" , "jdrake@juniper.net" Thread-Topic: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' Thread-Index: AQHRG9ETUP92oWRS5Ua5Lf7oEtipsA== Date: Tue, 10 Nov 2015 16:01:35 +0000 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localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id D64C91B3C1C; Tue, 10 Nov 2015 10:27:29 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.51 X-Spam-Level: X-Spam-Status: No, score=-14.51 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_HI=-5, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id MVQ20B1LMRd3; Tue, 10 Nov 2015 10:27:28 -0800 (PST) Received: from alln-iport-6.cisco.com (alln-iport-6.cisco.com [173.37.142.93]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id E6DB21A1A90; Tue, 10 Nov 2015 10:27:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; 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verify=FAIL); Tue, 10 Nov 2015 18:27:27 GMT Received: from xch-aln-002.cisco.com (173.36.7.12) by XCH-ALN-003.cisco.com (173.36.7.13) with Microsoft SMTP Server (TLS) id 15.0.1104.5; Tue, 10 Nov 2015 12:27:26 -0600 Received: from xch-aln-002.cisco.com ([173.36.7.12]) by XCH-ALN-002.cisco.com ([173.36.7.12]) with mapi id 15.00.1104.000; Tue, 10 Nov 2015 12:27:26 -0600 From: "Alvaro Retana (aretana)" To: Xuxiaohu , "draft-ietf-bess-virtual-subnet@ietf.org" Thread-Topic: AD Review of draft-ietf-bess-virtual-subnet-02 Thread-Index: AQHREP/Zw7GhT2VtVUq2Og/eUCmx3p6INRgGgAy4L1CAAMxbAA== Date: Tue, 10 Nov 2015 18:27:26 +0000 Message-ID: References: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0CB41789@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0CB44851@NKGEML512-MBS.china.huawei.com> In-Reply-To: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0CB44851@NKGEML512-MBS.china.huawei.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.117.15.3] Content-Type: multipart/alternative; boundary="_000_D2679F28E8E8Caretanaciscocom_" MIME-Version: 1.0 Archived-At: Cc: "bess-chairs@ietf.org" , "VIGOUREUX, MARTIN \(MARTIN\)" , "bess@ietf.org" Subject: Re: [bess] AD Review of draft-ietf-bess-virtual-subnet-02 X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 10 Nov 2015 18:27:30 -0000 --_000_D2679F28E8E8Caretanaciscocom_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable On 11/10/15, 2:18 AM, "Xuxiaohu" > wrote: Xiaohu: Hi! We have updated the draft according to your comments and suggestions. I just have a couple of small items. Please see my comments below.. I'm going to start the IETF Last Call and put this document up for the IESG= Telechat on Dec/3. Please post an update based on the comments below by t= he end of the week. Thanks! Alvaro. . . . Major: 1. The use of rfc2119 keywords is not required. You left in the rfc2119 boilerplate and reference, please take them off. ... 1. You first use "VS" in Section 3.6. I'm assuming this is related to "= virtual subnet", but there's no explicit association. I see that you expanded in 3.6, but now VS is used for the first time in 3.= 8 w/out explicitly expanding. Solution: in 3.6 s/Virtual Subnet/Virtual Subnet (VS) --_000_D2679F28E8E8Caretanaciscocom_ Content-Type: text/html; charset="iso-8859-1" Content-ID: Content-Transfer-Encoding: quoted-printable
On 11/10/15, 2:18 AM, "Xuxiaohu" <xuxiaohu@huawei.com> wrote:

Xiaohu:

Hi!

We have updated the draft according= to your comments and suggestions. 


I just have a couple of small items.  Please see my comments belo= w..

I'm going to start the IETF Last Call and put this document up for the= IESG Telechat on Dec/3.  Please post an update based on the comments = below by the end of the week.

Thanks!

Alvaro.

. . .

Major:

  1. The use of rfc2119 keywords is not required.

You left in the rf= c2119 boilerplate and reference, please take them off.

  1. You fi= rst use "VS" in Section 3.6.  I'm assuming this is related t= o "virtual subnet", but there's no explicit association.

I see that you expanded in 3.6, but now VS is used for the first time = in 3.8 w/out explicitly expanding.

Solution: in 3.6  s/Virtual Subnet/Virtual Subnet (VS)

--_000_D2679F28E8E8Caretanaciscocom_-- From nobody Tue Nov 10 10:49:22 2015 Return-Path: X-Original-To: bess@ietf.org Delivered-To: bess@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 9D3611B3CB9; Tue, 10 Nov 2015 10:49:19 -0800 (PST) Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit From: The IESG To: "IETF-Announce" X-Test-IDTracker: no X-IETF-IDTracker: 6.9.0 Auto-Submitted: auto-generated Precedence: bulk Sender: Message-ID: <20151110184919.23433.17690.idtracker@ietfa.amsl.com> Date: Tue, 10 Nov 2015 10:49:19 -0800 Archived-At: Cc: aretana@cisco.com, bess-chairs@ietf.org, martin.vigoureux@alcatel-lucent.com, bess@ietf.org, draft-ietf-bess-virtual-subnet@ietf.org Subject: [bess] Last Call: (Virtual Subnet: A BGP/MPLS IP VPN-based Subnet Extension Solution) to Informational RFC X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Reply-To: ietf@ietf.org List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 10 Nov 2015 18:49:19 -0000 The IESG has received a request from the BGP Enabled Services WG (bess) to consider the following document: - 'Virtual Subnet: A BGP/MPLS IP VPN-based Subnet Extension Solution' as Informational RFC The IESG plans to make a decision in the next few weeks, and solicits final comments on this action. Please send substantive comments to the ietf@ietf.org mailing lists by 2015-11-24. Exceptionally, comments may be sent to iesg@ietf.org instead. In either case, please retain the beginning of the Subject line to allow automated sorting. Abstract This document describes a BGP/MPLS IP VPN-based subnet extension solution referred to as Virtual Subnet, which can be used for building Layer 3 network virtualization overlays within and/or between data centers. The file can be obtained via https://datatracker.ietf.org/doc/draft-ietf-bess-virtual-subnet/ IESG discussion can be tracked via https://datatracker.ietf.org/doc/draft-ietf-bess-virtual-subnet/ballot/ No IPR declarations have been submitted directly on this I-D. From nobody Tue Nov 10 17:27:16 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 41A381B2C89; Tue, 10 Nov 2015 17:27:15 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.21 X-Spam-Level: X-Spam-Status: No, score=-4.21 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id khTzuaavjsGI; Tue, 10 Nov 2015 17:27:12 -0800 (PST) Received: from lhrrgout.huawei.com (lhrrgout.huawei.com [194.213.3.17]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 1FA321B2C7B; Tue, 10 Nov 2015 17:27:10 -0800 (PST) Received: from 172.18.7.190 (EHLO lhreml405-hub.china.huawei.com) ([172.18.7.190]) by lhrrg01-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id CDX89550; Wed, 11 Nov 2015 01:27:08 +0000 (GMT) Received: from NKGEML404-HUB.china.huawei.com (10.98.56.35) by lhreml405-hub.china.huawei.com (10.201.5.242) with Microsoft SMTP Server (TLS) id 14.3.235.1; Wed, 11 Nov 2015 01:27:06 +0000 Received: from NKGEML512-MBS.china.huawei.com ([169.254.8.187]) by nkgeml404-hub.china.huawei.com ([10.98.56.35]) with mapi id 14.03.0235.001; Wed, 11 Nov 2015 09:26:59 +0800 From: Xuxiaohu To: "Alvaro Retana (aretana)" , "draft-ietf-bess-virtual-subnet@ietf.org" Thread-Topic: AD Review of draft-ietf-bess-virtual-subnet-02 Thread-Index: AQHREP/Zw7GhT2VtVUq2Og/eUCmx3p6INRgGgAy4L1CAAMxbAIAAZE9g Date: Wed, 11 Nov 2015 01:26:58 +0000 Message-ID: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0CB44BD9@NKGEML512-MBS.china.huawei.com> References: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0CB41789@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0CB44851@NKGEML512-MBS.china.huawei.com> In-Reply-To: Accept-Language: zh-CN, en-US Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.111.99.55] Content-Type: multipart/alternative; boundary="_000_1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0CB44BD9NKGEML512MBSchi_" MIME-Version: 1.0 X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A090205.5642996D.0001, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=169.254.8.187, so=2013-06-18 04:22:30, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: db6c799a1534ada4de41c016433eed6a Archived-At: Cc: "bess-chairs@ietf.org" , "VIGOUREUX, MARTIN \(MARTIN\)" , "bess@ietf.org" Subject: Re: [bess] AD Review of draft-ietf-bess-virtual-subnet-02 X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 11 Nov 2015 01:27:15 -0000 --_000_1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0CB44BD9NKGEML512MBSchi_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Alvaro, I will update it ASAP. Best regards, Xiaohu From: Alvaro Retana (aretana) [mailto:aretana@cisco.com] Sent: Wednesday, November 11, 2015 2:27 AM To: Xuxiaohu; draft-ietf-bess-virtual-subnet@ietf.org Cc: VIGOUREUX, MARTIN (MARTIN); bess-chairs@ietf.org; bess@ietf.org Subject: Re: AD Review of draft-ietf-bess-virtual-subnet-02 On 11/10/15, 2:18 AM, "Xuxiaohu" > wrote: Xiaohu: Hi! We have updated the draft according to your comments and suggestions. I just have a couple of small items. Please see my comments below.. I'm going to start the IETF Last Call and put this document up for the IESG= Telechat on Dec/3. Please post an update based on the comments below by t= he end of the week. Thanks! Alvaro. . . . Major: 1. The use of rfc2119 keywords is not required. You left in the rfc2119 boilerplate and reference, please take them off. ... 1. You first use "VS" in Section 3.6. I'm assuming this is related to "= virtual subnet", but there's no explicit association. I see that you expanded in 3.6, but now VS is used for the first time in 3.= 8 w/out explicitly expanding. Solution: in 3.6 s/Virtual Subnet/Virtual Subnet (VS) --_000_1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0CB44BD9NKGEML512MBSchi_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Alvaro,

 = ;

I will upd= ate it ASAP.

 = ;

Best regar= ds,

Xiaohu

 = ;

From: Alvaro Retana (aretana) [mailto:aretana@cisco.com]
Sent: Wednesday, November 11, 2015 2:27 AM
To: Xuxiaohu; draft-ietf-bess-virtual-subnet@ietf.org
Cc: VIGOUREUX, MARTIN (MARTIN); bess-chairs@ietf.org; bess@ietf.org<= br> Subject: Re: AD Review of draft-ietf-bess-virtual-subnet-02

 

On 11/10/15,= 2:18 AM, "Xuxiaohu" <x= uxiaohu@huawei.com> wrote:

 <= /o:p>

Xiaohu:<= /span>

 

Hi!

 <= /o:p>

We have up= dated the draft according to your comments and suggestions. 

 

I just have a couple of small items. &= nbsp;Please see my comments below..

 

I'm going to start the IETF Last Call = and put this document up for the IESG Telechat on Dec/3.  Please post = an update based on the comments below by the end of the week.

 

Thanks!

 

Alvaro.

 

. . .

Major:

  1. The use of rfc2119 keywords is not required.

 <= /o:p>

You left in = the rfc2119 boilerplate and reference, please take them off.

 <= /o:p>

=

  1. You first use "VS" in Section 3.6. &n= bsp;I'm assuming this is related to "virtual subnet", but there's= no explicit association.

 

I see that you expanded in 3.6, but no= w VS is used for the first time in 3.8 w/out explicitly expanding.

 

Solution: in 3.6  s/Virtual Subne= t/Virtual Subnet (VS)

 

--_000_1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0CB44BD9NKGEML512MBSchi_-- From nobody Tue Nov 10 17:38:36 2015 Return-Path: X-Original-To: bess@ietf.org Delivered-To: bess@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id DF4C71B4583; Tue, 10 Nov 2015 17:38:33 -0800 (PST) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: X-Test-IDTracker: no X-IETF-IDTracker: 6.9.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <20151111013833.22759.4799.idtracker@ietfa.amsl.com> Date: Tue, 10 Nov 2015 17:38:33 -0800 Archived-At: Cc: bess@ietf.org Subject: [bess] I-D Action: draft-ietf-bess-virtual-subnet-04.txt X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 11 Nov 2015 01:38:34 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the BGP Enabled Services Working Group of the IETF. Title : Virtual Subnet: A BGP/MPLS IP VPN-based Subnet Extension Solution Authors : Xiaohu Xu Robert Raszuk Christian Jacquenet Truman Boyes Brendan Fee Filename : draft-ietf-bess-virtual-subnet-04.txt Pages : 14 Date : 2015-11-10 Abstract: This document describes a BGP/MPLS IP VPN-based subnet extension solution referred to as Virtual Subnet, which can be used for building Layer 3 network virtualization overlays within and/or between data centers. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-bess-virtual-subnet/ There's also a htmlized version available at: https://tools.ietf.org/html/draft-ietf-bess-virtual-subnet-04 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-bess-virtual-subnet-04 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ From nobody Tue Nov 10 19:03:52 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id F3E191B4791 for ; Tue, 10 Nov 2015 19:03:50 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.21 X-Spam-Level: X-Spam-Status: No, score=-4.21 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id QthueDzPT1lY for ; Tue, 10 Nov 2015 19:03:48 -0800 (PST) Received: from lhrrgout.huawei.com (lhrrgout.huawei.com [194.213.3.17]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 9E2961B4795 for ; Tue, 10 Nov 2015 19:03:44 -0800 (PST) Received: from 172.18.7.190 (EHLO lhreml405-hub.china.huawei.com) ([172.18.7.190]) by lhrrg02-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id CAE24463; Wed, 11 Nov 2015 03:03:41 +0000 (GMT) Received: from nkgeml407-hub.china.huawei.com (10.98.56.38) by lhreml405-hub.china.huawei.com (10.201.5.242) with Microsoft SMTP Server (TLS) id 14.3.235.1; Wed, 11 Nov 2015 03:03:39 +0000 Received: from NKGEML501-MBS.china.huawei.com ([169.254.2.75]) by nkgeml407-hub.china.huawei.com ([10.98.56.38]) with mapi id 14.03.0235.001; Wed, 11 Nov 2015 11:03:34 +0800 From: Haoweiguo To: "Rabadan, Jorge (Jorge)" , "sajassi@cisco.com" , "jdrake@juniper.net" Thread-Topic: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' Thread-Index: AQHRG9ETUP92oWRS5Ua5Lf7oEtipsJ6WArmC Date: Wed, 11 Nov 2015 03:03:34 +0000 Message-ID: References: <486973F4-725A-4510-969F-AD9BC3D34B54@alcatel-lucent.com> In-Reply-To: <486973F4-725A-4510-969F-AD9BC3D34B54@alcatel-lucent.com> Accept-Language: en-US, zh-CN Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.135.23.94] Content-Type: multipart/alternative; boundary="_000_DD5FC8DE455C3348B94340C0AB5517334F8D6C1Bnkgeml501mbschi_" MIME-Version: 1.0 X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A090204.5642B00E.0039, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=169.254.2.75, so=2013-06-18 04:22:30, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: 3d3b6eb52feb8a94722854a8570db0b6 Archived-At: Cc: "bess@ietf.org" Subject: Re: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 11 Nov 2015 03:03:51 -0000 --_000_DD5FC8DE455C3348B94340C0AB5517334F8D6C1Bnkgeml501mbschi_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Jorge, Thanks for your explanations. However, i still can't understand, i'm sorry. RFC 5512 only defines IP tunnel type and encapsulation attribute, like L2TP= v3,GRE and IP in IP. For RFC 5512, MPLS tunnel doesn't need to be defined = specifically, it is default case. In RFC 7432, the tunnel type 10 also hasn= 't been defined. Later, when the EVPN for overlay network solution was prop= osed, the tunnel type 10 was introduced to differentiate MPLS tunnel and VX= LAN/NVGRE/MPLS Over GRE tunnel, because same route type 1,2,3,4 and 5 are u= sed in both RFC 7432 and the draft 'draft-ietf-bess-evpn-overlay-02'. We ne= ed the tunnel type to clearly notify peer EVPN PE which tunnel(including MP= LS tunnel type) should be used. So it introduced updates on RFC 7432 and w= ill incur some interoperbility issue for RFC 7432. Am i right? Thanks, weiguo ________________________________ From: BESS [bess-bounces@ietf.org] on behalf of Rabadan, Jorge (Jorge) [jor= ge.rabadan@alcatel-lucent.com] Sent: Wednesday, November 11, 2015 0:01 To: Haoweiguo; sajassi@cisco.com; jdrake@juniper.net Cc: bess@ietf.org Subject: Re: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' Weiguo, There are already implementations using value 10 in the RFC5512 BGP encap e= xt community. That is the value you would have in RFC7432 compliant networks where you ca= n also have overlay tunnels. Value 10 would indicate to the ingress PE that= the route needs an MPLS tunnel to be resolved. Thx Jorge From: BESS > on behalf = of Haoweiguo > Date: Tuesday, November 10, 2015 at 1:05 AM To: "sajassi@cisco.com" >, "jdrake@juniper.net" > Cc: "bess@ietf.org" > Subject: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' Hi Ali & John, The draft of 'draft-ietf-bess-evpn-overlay-02' describes how EVPN can be us= ed for Overlay network, the overlay network includes VXLAN, NVGRE and MPLS = Over GRE. In section 13 IANA considerations, several overlay tunnel types are request= ed as follows: 8 VXLAN Encapsulation 9 NVGRE Encapsulation 10 MPLS Encapsulation (?) 11 MPLS in GRE Encapsulation 12 VXLAN GPE Encapsulation IMO, 8,9,11 and 12 are all overlay encapsulations, 10 is an exception. Woul= d you like to explain what's the purpose of tunnel type 10? Thanks, weiguo --_000_DD5FC8DE455C3348B94340C0AB5517334F8D6C1Bnkgeml501mbschi_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Jorge,

Thanks for your explanations. However,= i still can't understand, i'm sorry.

RFC 5512 only defines IP tunnel type a= nd encapsulation attribute, like L2TPv3,GRE and IP in IP.  For RFC 551= 2, MPLS tunnel doesn't need to be defined specifically, it is default case.= In RFC 7432, the tunnel type 10 also hasn't been defined. Later, when the EVPN for overlay network solution was propos= ed, the tunnel type 10 was introduced to differentiate MPLS tunnel and VXLA= N/NVGRE/MPLS Over GRE tunnel, because same route type 1,2,3,4 and 5 ar= e used in both RFC 7432 and the draft 'draft-ietf-bess-evpn-overlay-02'. We need the tunnel type to clearly noti= fy peer EVPN PE which tunnel(including MPLS tunnel type) should be used.&nb= sp; So it introduced updates on RFC 7432 and will incur some interoperbilit= y issue for RFC 7432. Am i right?

Thanks,

weiguo

 


From: BESS [bess-bounces@ietf.org] on beha= lf of Rabadan, Jorge (Jorge) [jorge.rabadan@alcatel-lucent.com]
Sent: Wednesday, November 11, 2015 0:01
To: Haoweiguo; sajassi@cisco.com; jdrake@juniper.net
Cc: bess@ietf.org
Subject: Re: [bess] One question about 'draft-ietf-bess-evpn-overlay= -02'

Weiguo, 

There are already implementations using value 10 in the RFC5512 BGP en= cap ext community.
That is the value you would have in RFC7432 compliant networks where y= ou can also have overlay tunnels. Value 10 would indicate to the ingress PE= that the route needs an MPLS tunnel to be resolved.

Thx
Jorge

From: BESS <bess-bounces@ietf.org> on be= half of Haoweiguo <haoweiguo@huawei.com>
Date: Tuesday, November 10, 2015 a= t 1:05 AM
To: "sajassi@cisco.com" <sajassi@cisco.com>, "= ;jdrake@juniper.net= " <jdrake@juniper= .net>
Cc: "bess@ietf.org" <bess@ietf.org>
Subject: [bess] One question about= 'draft-ietf-bess-evpn-overlay-02'

Hi Ali & John,

The draft of 'draft-ietf-bess-evpn-ove= rlay-02' describes how EVPN can be used for Overlay network, the overlay ne= twork includes VXLAN, NVGRE and MPLS Over GRE.

In section 13 IANA considerations, sev= eral overlay tunnel types are requested as follows:

8    VXLAN Encapsulatio= n
9    NVGRE Encapsulation
10   MPLS Encapsulation   (?)
11   MPLS in GRE Encapsulation
12   VXLAN GPE Encapsulation

 

IMO, 8,9,11 and 12 are all overlay enc= apsulations, 10 is an exception. Would you like to explain what's the purpo= se of tunnel type 10?

 

Thanks,

weiguo

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b2NrcXVvdGU+DQo8L3NwYW4+DQo8L2JvZHk+DQo8L2h0bWw+DQo= --_000_1F70DC8A2BB540C789CA03F6E0784B8Balcatellucentcom_-- From nobody Tue Nov 10 22:08:10 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A988D1B3299 for ; Tue, 10 Nov 2015 22:08:09 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.21 X-Spam-Level: X-Spam-Status: No, score=-4.21 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id IhUvIKOCvafc for ; Tue, 10 Nov 2015 22:08:07 -0800 (PST) Received: from lhrrgout.huawei.com (lhrrgout.huawei.com [194.213.3.17]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id D4F4D1B3298 for ; Tue, 10 Nov 2015 22:08:06 -0800 (PST) Received: from 172.18.7.190 (EHLO lhreml403-hub.china.huawei.com) ([172.18.7.190]) by lhrrg01-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id CDY08326; Wed, 11 Nov 2015 06:08:04 +0000 (GMT) Received: from NKGEML401-HUB.china.huawei.com (10.98.56.32) by lhreml403-hub.china.huawei.com (10.201.5.217) with Microsoft SMTP Server (TLS) id 14.3.235.1; Wed, 11 Nov 2015 06:08:02 +0000 Received: from NKGEML501-MBS.china.huawei.com ([169.254.2.75]) by nkgeml401-hub.china.huawei.com ([10.98.56.32]) with mapi id 14.03.0235.001; Wed, 11 Nov 2015 14:07:54 +0800 From: Haoweiguo To: "Rabadan, Jorge (Jorge)" , "sajassi@cisco.com" , "jdrake@juniper.net" Thread-Topic: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' Thread-Index: AQHRG9ETUP92oWRS5Ua5Lf7oEtipsJ6WArmC//+WFoCAALpxuw== Date: Wed, 11 Nov 2015 06:07:54 +0000 Message-ID: References: <486973F4-725A-4510-969F-AD9BC3D34B54@alcatel-lucent.com> , <1F70DC8A-2BB5-40C7-89CA-03F6E0784B8B@alcatel-lucent.com> In-Reply-To: <1F70DC8A-2BB5-40C7-89CA-03F6E0784B8B@alcatel-lucent.com> Accept-Language: en-US, zh-CN Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.135.23.94] Content-Type: multipart/alternative; boundary="_000_DD5FC8DE455C3348B94340C0AB5517334F8D6C5Bnkgeml501mbschi_" MIME-Version: 1.0 X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020204.5642DB44.0107, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=169.254.2.75, so=2013-06-18 04:22:30, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: 57c39537aecbf93154ac6c8e6a6e9d44 Archived-At: Cc: "bess@ietf.org" Subject: Re: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 11 Nov 2015 06:08:09 -0000 --_000_DD5FC8DE455C3348B94340C0AB5517334F8D6C5Bnkgeml501mbschi_ Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Jorge, Understood, many thanks. Now that the default tunnel encapsulation is MPLS = encapsulation, the tunnel type 10 seems to be unneccessary. So is the intro= duction of tunnel type 10 just for further removing ambiguity? If i don't u= se the tunnel type 10 in MPLS based EVPN implementation(RFC 7432), it will = also never incur any issue. Am i right? Thanks, weiguo ________________________________ From: BESS [bess-bounces@ietf.org] on behalf of Rabadan, Jorge (Jorge) [jor= ge.rabadan@alcatel-lucent.com] Sent: Wednesday, November 11, 2015 11:47 To: Haoweiguo; sajassi@cisco.com; jdrake@juniper.net Cc: bess@ietf.org Subject: Re: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' Weiguo, Well, if an RFC7432 implementation does not use the RFC5512 ext community, = the following sentence in the evan-overlay draft should help interoperabili= ty. I personally don=92t see any issues. If the BGP Encapsulation extended community is not present, then the default MPLS encapsulation or a statically configured encapsulation is assumed. Thanks. Jorge From: Haoweiguo > Date: Tuesday, November 10, 2015 at 7:03 PM To: Jorge Rabadan >, "sajassi@cisco.com" >, "jdrake@juniper.net" > Cc: "bess@ietf.org" > Subject: RE: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' Jorge, Thanks for your explanations. However, i still can't understand, i'm sorry. RFC 5512 only defines IP tunnel type and encapsulation attribute, like L2TP= v3,GRE and IP in IP. For RFC 5512, MPLS tunnel doesn't need to be defined = specifically, it is default case. In RFC 7432, the tunnel type 10 also hasn= 't been defined. Later, when the EVPN for overlay network solution was prop= osed, the tunnel type 10 was introduced to differentiate MPLS tunnel and VX= LAN/NVGRE/MPLS Over GRE tunnel, because same route type 1,2,3,4 and 5 are u= sed in both RFC 7432 and the draft 'draft-ietf-bess-evpn-overlay-02'. We ne= ed the tunnel type to clearly notify peer EVPN PE which tunnel(including MP= LS tunnel type) should be used. So it introduced updates on RFC 7432 and w= ill incur some interoperbility issue for RFC 7432. Am i right? Thanks, weiguo ________________________________ From: BESS [bess-bounces@ietf.org] on behalf = of Rabadan, Jorge (Jorge) [jorge.rabadan@alcatel-lucent.com] Sent: Wednesday, November 11, 2015 0:01 To: Haoweiguo; sajassi@cisco.com; jdrake@juniper.= net Cc: bess@ietf.org Subject: Re: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' Weiguo, There are already implementations using value 10 in the RFC5512 BGP encap e= xt community. That is the value you would have in RFC7432 compliant networks where you ca= n also have overlay tunnels. Value 10 would indicate to the ingress PE that= the route needs an MPLS tunnel to be resolved. Thx Jorge From: BESS > on behalf = of Haoweiguo > Date: Tuesday, November 10, 2015 at 1:05 AM To: "sajassi@cisco.com" >, "jdrake@juniper.net" > Cc: "bess@ietf.org" > Subject: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' Hi Ali & John, The draft of 'draft-ietf-bess-evpn-overlay-02' describes how EVPN can be us= ed for Overlay network, the overlay network includes VXLAN, NVGRE and MPLS = Over GRE. In section 13 IANA considerations, several overlay tunnel types are request= ed as follows: 8 VXLAN Encapsulation 9 NVGRE Encapsulation 10 MPLS Encapsulation (?) 11 MPLS in GRE Encapsulation 12 VXLAN GPE Encapsulation IMO, 8,9,11 and 12 are all overlay encapsulations, 10 is an exception. Woul= d you like to explain what's the purpose of tunnel type 10? Thanks, weiguo --_000_DD5FC8DE455C3348B94340C0AB5517334F8D6C5Bnkgeml501mbschi_ Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable

Jorge,

Understood, many thanks. Now that the = default tunnel encapsulation is MPLS encapsulation, the tunnel type 10 seem= s to be unneccessary. So is the introduction of tunnel type 10 just for fur= ther removing ambiguity? If i don't use the tunnel type 10 in MPLS based EVPN implementation(RFC 7432), it wil= l also never incur any issue. Am i right?

 

Thanks,

weiguo

From: BESS [bess-bounces@ietf.org] on beha= lf of Rabadan, Jorge (Jorge) [jorge.rabadan@alcatel-lucent.com]
Sent: Wednesday, November 11, 2015 11:47
To: Haoweiguo; sajassi@cisco.com; jdrake@juniper.net
Cc: bess@ietf.org
Subject: Re: [bess] One question about 'draft-ietf-bess-evpn-overlay= -02'

Weiguo,

Well, if an RFC7432 implementation does not use the RFC5512 ext commun= ity, the following sentence in the evan-overlay draft should help interoper= ability. I personally don=92t see any issues.

If the BGP Encapsulation extended com=
munity is not present, then the
   default MPLS encapsulation or a statically configured encapsulation
   is assumed.

Thanks.
Jorge

From: Haoweiguo <haoweiguo@huawei.com> Date: Tuesday, November 10, 2015 a= t 7:03 PM
To: Jorge Rabadan <jorge.rabadan@alc= atel-lucent.com>, "sajassi@cisco.com" <sajassi@cisco.com>, "jdrake@junip= er.net" <jdrake@juniper.net>
Cc: "bess@ietf.org" <bess@ietf.org>
Subject: RE: [bess] One question a= bout 'draft-ietf-bess-evpn-overlay-02'

Jorge,

Thanks for your explanations. However,= i still can't understand, i'm sorry.

RFC 5512 only defines IP tunnel type a= nd encapsulation attribute, like L2TPv3,GRE and IP in IP.  For RFC 551= 2, MPLS tunnel doesn't need to be defined specifically, it is default case.= In RFC 7432, the tunnel type 10 also hasn't been defined. Later, when the EVPN for overlay network solution was propos= ed, the tunnel type 10 was introduced to differentiate MPLS tunnel and VXLA= N/NVGRE/MPLS Over GRE tunnel, because same route type 1,2,3,4 and 5 ar= e used in both RFC 7432 and the draft 'draft-ietf-bess-evpn-overlay-02'. We need the tunnel type to clearly noti= fy peer EVPN PE which tunnel(including MPLS tunnel type) should be used.&nb= sp; So it introduced updates on RFC 7432 and will incur some interoperbilit= y issue for RFC 7432. Am i right?

Thanks,

weiguo

 


From: BESS [bess-bounces@ietf.org] on behalf of Rabada= n, Jorge (Jorge) [jorge.rabadan@alcatel-lucent.com]
Sent: Wednesday, November 11, 2015 0:01
To: Haoweiguo; sajassi@cisco.com; jdrake@juniper.net<= /a>
Cc:
bess@ietf.org=
Subject: Re: [bess] One question about 'draft-ietf-bess-evpn-overlay= -02'

Weiguo, 

There are already implementations using value 10 in the RFC5512 BGP en= cap ext community.
That is the value you would have in RFC7432 compliant networks where y= ou can also have overlay tunnels. Value 10 would indicate to the ingress PE= that the route needs an MPLS tunnel to be resolved.

Thx
Jorge

From: BESS <bess-bounces@ietf.org> on be= half of Haoweiguo <haoweiguo@huawei.com>
Date: Tuesday, November 10, 2015 a= t 1:05 AM
To: "sajassi@cisco.com" <sajassi@cisco.com>, "= ;jdrake@juniper.net= " <jdrake@juniper= .net>
Cc: "bess@ietf.org" <bess@ietf.org>
Subject: [bess] One question about= 'draft-ietf-bess-evpn-overlay-02'

Hi Ali & John,

The draft of 'draft-ietf-bess-evpn-ove= rlay-02' describes how EVPN can be used for Overlay network, the overlay ne= twork includes VXLAN, NVGRE and MPLS Over GRE.

In section 13 IANA considerations, sev= eral overlay tunnel types are requested as follows:

8    VXLAN Encapsulatio= n
9    NVGRE Encapsulation
10   MPLS Encapsulation   (?)
11   MPLS in GRE Encapsulation
12   VXLAN GPE Encapsulation

 

IMO, 8,9,11 and 12 are all overlay enc= apsulations, 10 is an exception. Would you like to explain what's the purpo= se of tunnel type 10?

 

Thanks,

weiguo

--_000_DD5FC8DE455C3348B94340C0AB5517334F8D6C5Bnkgeml501mbschi_-- From nobody Wed Nov 11 00:35:39 2015 Return-Path: X-Original-To: bess@ietf.org Delivered-To: bess@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id F383E1A6F61; Wed, 11 Nov 2015 00:35:35 -0800 (PST) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: X-Test-IDTracker: no X-IETF-IDTracker: 6.9.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <20151111083535.3846.88045.idtracker@ietfa.amsl.com> Date: Wed, 11 Nov 2015 00:35:35 -0800 Archived-At: Cc: bess@ietf.org Subject: [bess] I-D Action: draft-ietf-bess-virtual-subnet-05.txt X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 11 Nov 2015 08:35:36 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the BGP Enabled Services Working Group of the IETF. Title : Virtual Subnet: A BGP/MPLS IP VPN-based Subnet Extension Solution Authors : Xiaohu Xu Robert Raszuk Christian Jacquenet Truman Boyes Brendan Fee Filename : draft-ietf-bess-virtual-subnet-05.txt Pages : 14 Date : 2015-11-11 Abstract: This document describes a BGP/MPLS IP VPN-based subnet extension solution referred to as Virtual Subnet, which can be used for building Layer 3 network virtualization overlays within and/or between data centers. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-bess-virtual-subnet/ There's also a htmlized version available at: https://tools.ietf.org/html/draft-ietf-bess-virtual-subnet-05 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-bess-virtual-subnet-05 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ From nobody Wed Nov 11 06:40:04 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id C5B901ACEA7 for ; Wed, 11 Nov 2015 06:40:02 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.901 X-Spam-Level: X-Spam-Status: No, score=-1.901 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id RN82RdaH69Ki for ; Wed, 11 Nov 2015 06:39:58 -0800 (PST) Received: from na01-bl2-obe.outbound.protection.outlook.com (mail-bl2on0119.outbound.protection.outlook.com [65.55.169.119]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id A52F81ACE9D for ; Wed, 11 Nov 2015 06:39:57 -0800 (PST) Received: from SN1PR0501MB1709.namprd05.prod.outlook.com (10.163.130.155) by SN1PR0501MB1709.namprd05.prod.outlook.com (10.163.130.155) with Microsoft SMTP Server (TLS) id 15.1.318.15; Wed, 11 Nov 2015 14:39:54 +0000 Received: from SN1PR0501MB1709.namprd05.prod.outlook.com ([10.163.130.155]) by SN1PR0501MB1709.namprd05.prod.outlook.com ([10.163.130.155]) with mapi id 15.01.0318.003; Wed, 11 Nov 2015 14:39:54 +0000 From: John E Drake To: Haoweiguo , "Rabadan, Jorge (Jorge)" , "sajassi@cisco.com" Thread-Topic: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' Thread-Index: AQHRG9ETUP92oWRS5Ua5Lf7oEtipsJ6WArmC//+WFoCAALpxu4AAjp7g Date: Wed, 11 Nov 2015 14:39:53 +0000 Message-ID: References: <486973F4-725A-4510-969F-AD9BC3D34B54@alcatel-lucent.com> , <1F70DC8A-2BB5-40C7-89CA-03F6E0784B8B@alcatel-lucent.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=jdrake@juniper.net; x-originating-ip: [66.129.241.14] x-microsoft-exchange-diagnostics: 1; SN1PR0501MB1709; 5:7JzsGf+wC5mz5Br2csgE261iEUnl2e9L0A61Cm2vgyRc9E2/dmdpYeq7fQAARz3sTnp4nvNow5YL12v9qS/n60i8/QJOUSAkxaM1JlutDCnCmNC/Fhm0eqQiKtyzO9gL8U6QPGPzuFXTefqoyBgWSw==; 24:mROPkJswjQSYChZ6D+P4EJ5HudL23lRPwYA9zbiJDyhhzDBsep5kpFoLcrB8DX4JrCyvywJLBF+UNFdAxzL/PbuVAjLl7FSWMy/vlHSA5Gw=; 20:G6+48udZGrryOS/jMrXiwE3j50xMFBBXbq3m5Pi5Ynocz5mWUhaJwJs+SuGrTQnFDGTkXFx3v2BM1IKn/MGHoA== x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:;SRVR:SN1PR0501MB1709; x-microsoft-antispam-prvs: x-exchange-antispam-report-test: UriScan:(138986009662008)(95692535739014)(108003899814671); x-exchange-antispam-report-cfa-test: BCL:0; PCL:0; RULEID:(601004)(2401047)(520078)(8121501046)(5005006)(3002001)(10201501046); SRVR:SN1PR0501MB1709; BCL:0; PCL:0; RULEID:; SRVR:SN1PR0501MB1709; x-forefront-prvs: 0757EEBDCA x-forefront-antispam-report: SFV:NSPM; SFS:(10019020)(199003)(189002)(164054003)(377454003)(66654002)(74316001)(122556002)(16236675004)(33656002)(40100003)(86362001)(87936001)(5003600100002)(54356999)(77096005)(101416001)(19625215002)(102836002)(15975445007)(93886004)(11100500001)(5008740100001)(5007970100001)(10400500002)(50986999)(92566002)(76176999)(81156007)(189998001)(19609705001)(5004730100002)(66066001)(5002640100001)(230783001)(97736004)(106356001)(99286002)(5001770100001)(5001960100002)(106116001)(19580395003)(105586002)(19580405001)(2900100001)(2950100001)(5001920100001)(19300405004)(2501003)(76576001); DIR:OUT; SFP:1102; SCL:1; SRVR:SN1PR0501MB1709; H:SN1PR0501MB1709.namprd05.prod.outlook.com; FPR:; SPF:None; PTR:InfoNoRecords; A:1; MX:1; LANG:en; received-spf: None (protection.outlook.com: juniper.net does not designate permitted sender hosts) spamdiagnosticoutput: 1:23 spamdiagnosticmetadata: NSPM Content-Type: multipart/alternative; boundary="_000_SN1PR0501MB17092E0A7F8A69AD96A8C903C7130SN1PR0501MB1709_" MIME-Version: 1.0 X-OriginatorOrg: juniper.net X-MS-Exchange-CrossTenant-originalarrivaltime: 11 Nov 2015 14:39:53.6607 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: bea78b3c-4cdb-4130-854a-1d193232e5f4 X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN1PR0501MB1709 Archived-At: Cc: "bess@ietf.org" Subject: Re: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 11 Nov 2015 14:40:03 -0000 --_000_SN1PR0501MB17092E0A7F8A69AD96A8C903C7130SN1PR0501MB1709_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Weiguo, It is needed in order to distinguish between an advertising node that only = supports non-MPLS encapsulations and one that supports MPLS and non-MPLS en= capsulations. An advertising node that only supports MPLS encapsulation do= es not need to advertise anything. Yours Irrespectively, John From: Haoweiguo [mailto:haoweiguo@huawei.com] Sent: Wednesday, November 11, 2015 1:08 AM To: Rabadan, Jorge (Jorge); sajassi@cisco.com; John E Drake Cc: bess@ietf.org Subject: RE: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' Jorge, Understood, many thanks. Now that the default tunnel encapsulation is MPLS = encapsulation, the tunnel type 10 seems to be unneccessary. So is the intro= duction of tunnel type 10 just for further removing ambiguity? If i don't u= se the tunnel type 10 in MPLS based EVPN implementation(RFC 7432), it will = also never incur any issue. Am i right? Thanks, weiguo ________________________________ From: BESS [bess-bounces@ietf.org] on behalf of Rabadan, Jorge (Jorge) [jor= ge.rabadan@alcatel-lucent.com] Sent: Wednesday, November 11, 2015 11:47 To: Haoweiguo; sajassi@cisco.com; jdrake@juniper.= net Cc: bess@ietf.org Subject: Re: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' Weiguo, Well, if an RFC7432 implementation does not use the RFC5512 ext community, = the following sentence in the evan-overlay draft should help interoperabili= ty. I personally don't see any issues. If the BGP Encapsulation extended community is not present, then the default MPLS encapsulation or a statically configured encapsulation is assumed. Thanks. Jorge From: Haoweiguo > Date: Tuesday, November 10, 2015 at 7:03 PM To: Jorge Rabadan >, "sajassi@cisco.com" >, "jdrake@juniper.net" > Cc: "bess@ietf.org" > Subject: RE: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' Jorge, Thanks for your explanations. However, i still can't understand, i'm sorry. RFC 5512 only defines IP tunnel type and encapsulation attribute, like L2TP= v3,GRE and IP in IP. For RFC 5512, MPLS tunnel doesn't need to be defined = specifically, it is default case. In RFC 7432, the tunnel type 10 also hasn= 't been defined. Later, when the EVPN for overlay network solution was prop= osed, the tunnel type 10 was introduced to differentiate MPLS tunnel and VX= LAN/NVGRE/MPLS Over GRE tunnel, because same route type 1,2,3,4 and 5 are u= sed in both RFC 7432 and the draft 'draft-ietf-bess-evpn-overlay-02'. We ne= ed the tunnel type to clearly notify peer EVPN PE which tunnel(including MP= LS tunnel type) should be used. So it introduced updates on RFC 7432 and w= ill incur some interoperbility issue for RFC 7432. Am i right? Thanks, weiguo ________________________________ From: BESS [bess-bounces@ietf.org] on behalf = of Rabadan, Jorge (Jorge) [jorge.rabadan@alcatel-lucent.com] Sent: Wednesday, November 11, 2015 0:01 To: Haoweiguo; sajassi@cisco.com; jdrake@juniper.= net Cc: bess@ietf.org Subject: Re: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' Weiguo, There are already implementations using value 10 in the RFC5512 BGP encap e= xt community. That is the value you would have in RFC7432 compliant networks where you ca= n also have overlay tunnels. Value 10 would indicate to the ingress PE that= the route needs an MPLS tunnel to be resolved. Thx Jorge From: BESS > on behalf = of Haoweiguo > Date: Tuesday, November 10, 2015 at 1:05 AM To: "sajassi@cisco.com" >, "jdrake@juniper.net" > Cc: "bess@ietf.org" > Subject: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' Hi Ali & John, The draft of 'draft-ietf-bess-evpn-overlay-02' describes how EVPN can be us= ed for Overlay network, the overlay network includes VXLAN, NVGRE and MPLS = Over GRE. In section 13 IANA considerations, several overlay tunnel types are request= ed as follows: 8 VXLAN Encapsulation 9 NVGRE Encapsulation 10 MPLS Encapsulation (?) 11 MPLS in GRE Encapsulation 12 VXLAN GPE Encapsulation IMO, 8,9,11 and 12 are all overlay encapsulations, 10 is an exception. Woul= d you like to explain what's the purpose of tunnel type 10? Thanks, weiguo --_000_SN1PR0501MB17092E0A7F8A69AD96A8C903C7130SN1PR0501MB1709_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Weiguo,

 

It is needed in order to distinguish = between an advertising node that only supports non-MPLS encapsulations and = one that supports MPLS and non-MPLS encapsulations.  An advertising node that only supports MPLS encapsulation does not need to= advertise anything.

 

Yours Irrespectively,

 

John

 

From: Haoweiguo [mailto:haoweiguo@hu= awei.com]
Sent: Wednesday, November 11, 2015 1:08 AM
To: Rabadan, Jorge (Jorge); sajassi@cisco.com; John E Drake
Cc: bess@ietf.org
Subject: RE: [bess] One question about 'draft-ietf-bess-evpn-overlay= -02'

 

J= orge,

U= nderstood, many thanks. Now that the default tunnel encapsulation is MPLS e= ncapsulation, the tunnel type 10 seems to be unneccessary. So is the introd= uction of tunnel type 10 just for further removing ambiguity? If i don't use the tunnel type 10 in MPLS based EVPN implementa= tion(RFC 7432), it will also never incur any issue. Am i right?

 

T= hanks,

w= eiguo


From:<= /span> BESS [bess-bounces@ietf.org] on behalf of Rabadan, Jorge (Jorge) [jorge.rabadan@alcatel-lucent.com]
Sent: Wednesday, November 11, 2015 11:47
To: Haoweiguo; sajassi@cisco.co= m; jdrake@juniper.net
Cc: bess@ietf.org
Subject: Re: [bess] One question about 'draft-ietf-bess-evpn-overlay= -02'

Weiguo,

 =

Well, if an RFC7432 impl= ementation does not use the RFC5512 ext community, the following sentence i= n the evan-overlay draft should help interoperability. I personally donR= 17;t see any issues.

 =

If the =
BGP Encapsulation extended community is not present, then the
 &=
nbsp; default MPLS encapsulation or a statically configured encapsulation
 &=
nbsp; is assumed.

 =

Thanks.

Jorge<= /p>

 =

From: Haoweiguo <haoweiguo@huawei.com>
Date: Tuesday, November 10, 2015 at 7:03 PM
To: Jorge Rabadan <jorge.rabadan@alcatel-lucent.com>, "sajassi@cisco.com&q= uot; <sajassi@cis= co.com>, "jdrake@junip= er.net" <jdrake@juniper.net>
Cc: "bess@ie= tf.org" <bes= s@ietf.org>
Subject: RE: [bess] One question about 'draft-ietf-bess-evpn-overlay= -02'

 =

J= orge,

T= hanks for your explanations. However, i still can't understand, i'm sorry.<= o:p>

R= FC 5512 only defines IP tunnel type and encapsulation attribute, like L2TPv= 3,GRE and IP in IP.  For RFC 5512, MPLS tunnel doesn't need to be defi= ned specifically, it is default case. In RFC 7432, the tunnel type 10 also hasn't been defined. Later, when the EVPN for over= lay network solution was proposed, the tunnel type 10 was introduced to dif= ferentiate MPLS tunnel and VXLAN/NVGRE/MPLS Over GRE tunnel, because s= ame route type 1,2,3,4 and 5 are used in both RFC 7432 and the draft 'draft-ietf-bess-evpn-overlay-02'. We need = the tunnel type to clearly notify peer EVPN PE which tunnel(including MPLS = tunnel type) should be used.  So it introduced updates on RFC 7432 and= will incur some interoperbility issue for RFC 7432. Am i right?

T= hanks,

w= eiguo

 


From:<= /span> BESS [bess-bounces@ietf.org] on behalf of Rabadan, Jorge (Jorge) [jorge.rabadan@alcatel-lucent.com]
Sent: Wednesday, November 11, 2015 0:01
To: Haoweiguo; sajassi@cisco.com; jdrake@juniper.net<= /a>
Cc:
bess@ietf.org=
Subject: Re: [bess] One question about 'draft-ietf-bess-evpn-overlay= -02'

Weiguo, =

 =

There are already implem= entations using value 10 in the RFC5512 BGP encap ext community.=

That is the value you wo= uld have in RFC7432 compliant networks where you can also have overlay tunn= els. Value 10 would indicate to the ingress PE that the route needs an MPLS= tunnel to be resolved.

 =

Thx

Jorge<= /p>

 =

From: BESS <= bess-bounces@ietf.org> on behalf of Haoweiguo <haoweiguo@huawei.com>
Date: Tuesday, November 10, 2015 at 1:05 AM
To: "saj= assi@cisco.com" <sajassi@cisco.com>, "jdrake@juniper.net" <jdrake@juniper.net>
Cc: "bess@ie= tf.org" <bes= s@ietf.org>
Subject: [bess] One question about 'draft-ietf-bess-evpn-overlay-02'=

 =

H= i Ali & John,

T= he draft of 'draft-ietf-bess-evpn-overlay-02' describes how EVPN can be use= d for Overlay network, the overlay network includes VXLAN, NVGRE and MPLS O= ver GRE.

I= n section 13 IANA considerations, several overlay tunnel types are requeste= d as follows:

8=     VXLAN Encapsulation
9    NVGRE Encapsulation
10   MPLS Encapsulation   (?)
11   MPLS in GRE Encapsulation
12   VXLAN GPE Encapsulation
=

 

I= MO, 8,9,11 and 12 are all overlay encapsulations, 10 is an exception. Would= you like to explain what's the purpose of tunnel type 10?

 

T= hanks,

weiguo

--_000_SN1PR0501MB17092E0A7F8A69AD96A8C903C7130SN1PR0501MB1709_-- From nobody Wed Nov 11 10:28:07 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 173BC1B3769 for ; Wed, 11 Nov 2015 10:28:06 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.301 X-Spam-Level: X-Spam-Status: No, score=-1.301 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, J_CHICKENPOX_31=0.6, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001] autolearn=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id L_aYQahz-fkD for ; Wed, 11 Nov 2015 10:28:02 -0800 (PST) Received: from na01-bl2-obe.outbound.protection.outlook.com (mail-bl2on0104.outbound.protection.outlook.com [65.55.169.104]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 6370B1B31E7 for ; Wed, 11 Nov 2015 10:28:01 -0800 (PST) Received: from BY2PR05MB061.namprd05.prod.outlook.com (10.242.34.141) by BY2PR05MB061.namprd05.prod.outlook.com (10.242.34.141) with Microsoft SMTP Server (TLS) id 15.1.318.15; Wed, 11 Nov 2015 18:27:59 +0000 Received: from BY2PR05MB061.namprd05.prod.outlook.com ([169.254.3.31]) by BY2PR05MB061.namprd05.prod.outlook.com ([169.254.3.31]) with mapi id 15.01.0318.003; Wed, 11 Nov 2015 18:27:59 +0000 From: Tapraj Singh To: Sami Boutros , "bess@ietf.org" Thread-Topic: [bess] Seeking Feedback on evpn-auto-provisoning Thread-Index: AQHRAUS8y7Syc+yzyEykjPiiTkufW56W1LgA Date: Wed, 11 Nov 2015 18:27:58 +0000 Message-ID: References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/14.5.7.151005 authentication-results: spf=none (sender IP is ) smtp.mailfrom=tsingh@juniper.net; x-ms-exchange-messagesentrepresentingtype: 1 x-originating-ip: [66.129.239.10] x-microsoft-exchange-diagnostics: 1; BY2PR05MB061; 5:Be8H/UNXOVhSpMPe5IEvNzbF60Xx0Xig4AU/n3hybyq5fVek8rL4IHXh4V9tZVl2TcEImg5EKxZxiytYjVUWRDT/13YkCk6275+uVHPT8hzt+IGt/V2PMJMdEUIxv/hk/X//EtcxfVbSVvvGF1savQ==; 24:2DUGzAvPCMTH3luSAneBXTng+s2Qx3yCGE8XlTGhOi1X7V5iID2i45r5ivrHEo64E/kQUwNiST6irB9qMwb22RqLyTTRlQaQExTXiN4tjH4=; 20:Ykmw1bPJAGGfanU5Zg7/8adOLBKDSp5QjirU8bKJ274Lw1cw8SvfwibZ6qPKgGdc209+8nmieB2iDoLpoG9lWw== x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:;SRVR:BY2PR05MB061; x-microsoft-antispam-prvs: x-exchange-antispam-report-test: UriScan:; x-exchange-antispam-report-cfa-test: BCL:0; PCL:0; RULEID:(601004)(2401047)(520078)(5005006)(8121501046)(3002001)(10201501046); SRVR:BY2PR05MB061; BCL:0; PCL:0; RULEID:; SRVR:BY2PR05MB061; x-forefront-prvs: 0757EEBDCA x-forefront-antispam-report: SFV:NSPM; SFS:(10019020)(199003)(377454003)(189002)(164054003)(86362001)(102836002)(5004730100002)(5007970100001)(5008740100001)(19580405001)(106356001)(5001960100002)(15975445007)(76176999)(54356999)(81156007)(19580395003)(106116001)(97736004)(11100500001)(5002640100001)(2950100001)(36756003)(189998001)(66066001)(5001770100001)(2900100001)(92566002)(105586002)(19617315012)(107886002)(10400500002)(87936001)(4001350100001)(40100003)(50986999)(83506001)(230783001)(2501003)(15187005004)(16236675004)(99286002)(101416001)(122556002)(357404004); DIR:OUT; SFP:1102; SCL:1; SRVR:BY2PR05MB061; H:BY2PR05MB061.namprd05.prod.outlook.com; FPR:; SPF:None; PTR:InfoNoRecords; A:1; MX:1; LANG:en; received-spf: None (protection.outlook.com: juniper.net does not designate permitted sender hosts) spamdiagnosticoutput: 1:23 spamdiagnosticmetadata: NSPM Content-Type: multipart/alternative; boundary="_000_D268C27F2FB1Etsinghjunipernet_" MIME-Version: 1.0 X-OriginatorOrg: juniper.net X-MS-Exchange-CrossTenant-originalarrivaltime: 11 Nov 2015 18:27:58.3327 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: bea78b3c-4cdb-4130-854a-1d193232e5f4 X-MS-Exchange-Transport-CrossTenantHeadersStamped: BY2PR05MB061 Archived-At: Subject: Re: [bess] Seeking Feedback on evpn-auto-provisoning X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 11 Nov 2015 18:28:06 -0000 --_000_D268C27F2FB1Etsinghjunipernet_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Sami, I have gone through the draft. It looks good to me. I have few comments t= hat we should incorporate in the next version of the draft. 1. Currently in the draft we have First Sign of life(FSOL) that is detec= ted from access side only. In future we can have First sign of Life that mi= ght come from core side as well. Below I am putting different FSOL A) Access side L2 First Sign of Life (FSOL) 1. Unclassified Mac 1.1 IPoE 1.2 PPPoE 1.3 Mac Session 2. Unclassified Vlan 3. Control Protocols (i.e. ELMI, MVRP, DHCP) B) First Sign Life that is detected from Core Side 1. This can be detected whenever the IM route is detected for a given EV= I and VLAN in BGP IM Route for a given EVI. 2. Currently in the draft we are putting that there is a default bridge = domain which take of sending FSOL to Controller and based on the identifica= tion(Router, port, vlan, mac etc) received in the FSOL corresponding servic= e profile is pushed to the EVPN enable switch or router. Here I would like= to suggest that we should put a concept of L2 Context that is configured o= n port and Based on the L2 Context policies, If first sign of LIFE packet = is classified into L2 context then router or switch will send the FSOL to c= ontroller for downloading the service profile to router or switches from Co= ntroller. Example: Interface ge-1/0/0 Logical-port l2-context l2-context type {mac, vlan, pppoe, ipoe, elmi, mvrp etc) Encapsulation dot1q <------configured if l2= context type vlan> Service-policies -----> This is need for check if service template is conf= igured on the box itself and need to be either downloaded from controller. 3. We should provide the template for service definition for provisioning = service end to end based on the First sign of life packet. : { Customer ABC: matching criteria Re-Write Forwarding Service "EVPN-EVI-100" Qos Profile "BRONZE" CFM: MIPS/MEPs } Will work with you and will send information offline so that we can ma= ke this draft complete for handling auto-provisioning of EVPN enabled servi= ces for different type of FSOL and provision the service end-to-end. Thanks Tapraj From: BESS > on behalf = of Sami Boutros > Date: Wednesday, October 7, 2015 at 1:10 PM To: "bess@ietf.org" > Subject: [bess] Seeking Feedback on evpn-auto-provisoning Hi, The draft propose an EVPN route based on the FSOL packets to be sent to a c= ontroller in a data center network, to trigger a push of the related L2/L3 = service configuration to be provisioned on the PE/NVE and on the switch por= ts. https://tools.ietf.org/html/draft-boutros-bess-evpn-auto-provisoning-00 Thanks, Sami --_000_D268C27F2FB1Etsinghjunipernet_ Content-Type: text/html; charset="iso-8859-1" Content-ID: Content-Transfer-Encoding: quoted-printable
Hi Sami,
  I have gone through the draft. It looks good to me. I have few comme= nts that we should incorporate in the next version of the draft.
  1. Currently in the draft we have First Sign of life(FSOL) that is detecte= d from access side only. In future we can have First sign of Life that migh= t come from core side as well. Below I am putting different FSOL

 A) Access side L2 First Sign = of Life (FSOL)

  1. Unclassified Mac

     1.1 IPoE

     1.2 PPPoE

     1.3 Mac Se= ssion

  2. Unclassified Vlan

  3. Control Protocols (i.e. E= LMI, MVRP, DHCP)

B) First Sign= Life that is detected from Core Side

  1. This can = be detected whenever the IM route is detected for a given EVI and VLAN in B= GP IM Route for a given EVI.
   2. Currently in the draft we are = putting that there is a default bridge domain which take of sending FSOL to= Controller and based on the identification(Router, port, vlan, mac etc) re= ceived in the FSOL corresponding service profile is pushed to the EVPN enable switch or router.  Here I would lik= e to suggest that we should put a concept of L2 Context that is configured = on port and Based on the L2 Context policies,  If first sign of LIFE p= acket is classified into L2 context then router or switch will send the FSOL to controller for downloading the service pro= file to router or switches from Controller.
       Example:
    Interface ge-1/0/0
Logical-port l2-context
l2-context type {mac, vlan, pppoe, ipoe, elmi, mvrp etc)<= /font>
Encapsulation dot1q <vlan with other combinations> =  <——————configured if l2 contex= t type vlan>
Service-policies  —————> This is need for check = if service template is configured on the box itself and need to be either d= ownloaded from controller.
3.  We should provide the template for service definition for pro= visioning service end to end based on the First sign of life packet.
 <= nasport>:<mac-address> {
                  Cu= stomer ABC: 
                 matching=   criteria

        Re-Write

        Forwarding Service “EVPN-EVI-100R= 21;

                 Qos Prof= ile “BRONZE”
                 CFM: MIP= S/MEPs
 }
     Will work with you and will send information offli= ne so that we can make this draft complete for handling auto-provisioning o= f EVPN enabled services for different type of FSOL and provision the servic= e end-to-end.

Thanks
Tapraj

From: BESS <bess-bounces@ietf.org> on behalf of Sami Boutro= s <boutros.sami@gmail.com&= gt;
Date: Wednesday, October 7, 2015 at= 1:10 PM
To: "bess@ietf.org" <bess@i= etf.org>
Subject: [bess] Seeking Feedback on= evpn-auto-provisoning

Hi,

The draft propose an EVPN route based on the FSOL packets to be sent to a c= ontroller in a data center network, to trigger a push of the related L2/L3 = service configuration to be provisioned on the PE/NVE and on the switch por= ts.
Thanks,

Sami
--_000_D268C27F2FB1Etsinghjunipernet_-- From nobody Wed Nov 11 17:17:17 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 354211B3CD2 for ; Wed, 11 Nov 2015 17:17:16 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.21 X-Spam-Level: X-Spam-Status: No, score=-4.21 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ntqYMOsF1HYL for ; Wed, 11 Nov 2015 17:17:13 -0800 (PST) Received: from lhrrgout.huawei.com (lhrrgout.huawei.com [194.213.3.17]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id E882F1B3CD1 for ; Wed, 11 Nov 2015 17:17:11 -0800 (PST) Received: from 172.18.7.190 (EHLO lhreml404-hub.china.huawei.com) ([172.18.7.190]) by lhrrg02-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id CAF38378; Thu, 12 Nov 2015 01:17:09 +0000 (GMT) Received: from nkgeml407-hub.china.huawei.com (10.98.56.38) by lhreml404-hub.china.huawei.com (10.201.5.218) with Microsoft SMTP Server (TLS) id 14.3.235.1; Thu, 12 Nov 2015 01:17:08 +0000 Received: from NKGEML501-MBS.china.huawei.com ([169.254.2.75]) by nkgeml407-hub.china.huawei.com ([10.98.56.38]) with mapi id 14.03.0235.001; Thu, 12 Nov 2015 09:17:02 +0800 From: Haoweiguo To: John E Drake , "Rabadan, Jorge (Jorge)" , "sajassi@cisco.com" Thread-Topic: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' Thread-Index: AQHRG9ETUP92oWRS5Ua5Lf7oEtipsJ6WArmC//+WFoCAALpxu4AAjp7ggAC0FiE= Date: Thu, 12 Nov 2015 01:17:01 +0000 Message-ID: References: <486973F4-725A-4510-969F-AD9BC3D34B54@alcatel-lucent.com> , <1F70DC8A-2BB5-40C7-89CA-03F6E0784B8B@alcatel-lucent.com> , In-Reply-To: Accept-Language: en-US, zh-CN Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.135.23.94] Content-Type: multipart/alternative; boundary="_000_DD5FC8DE455C3348B94340C0AB5517334F8D6DF8nkgeml501mbschi_" MIME-Version: 1.0 X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020204.5643E896.001D, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=169.254.2.75, so=2013-06-18 04:22:30, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: 3d3b6eb52feb8a94722854a8570db0b6 Archived-At: Cc: "bess@ietf.org" Subject: Re: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 12 Nov 2015 01:17:16 -0000 --_000_DD5FC8DE455C3348B94340C0AB5517334F8D6DF8nkgeml501mbschi_ Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable John, It's clear, great thanks. Yes, it's needed in order to distinguish between = an advertising node that only support non-MPLS encapsulations and one that = supports MPLS and non-MPLS encapsulations. If has no this MPLS encapsulatio= n type, the node that supports MPLS and non-MPLS encapsulations will deemed= to be the node that only support non-MPLS encapsulations by remote EVPN PE= s. Thanks, weiguo ________________________________ From: John E Drake [jdrake@juniper.net] Sent: Wednesday, November 11, 2015 22:39 To: Haoweiguo; Rabadan, Jorge (Jorge); sajassi@cisco.com Cc: bess@ietf.org Subject: RE: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' Weiguo, It is needed in order to distinguish between an advertising node that only = supports non-MPLS encapsulations and one that supports MPLS and non-MPLS en= capsulations. An advertising node that only supports MPLS encapsulation do= es not need to advertise anything. Yours Irrespectively, John From: Haoweiguo [mailto:haoweiguo@huawei.com] Sent: Wednesday, November 11, 2015 1:08 AM To: Rabadan, Jorge (Jorge); sajassi@cisco.com; John E Drake Cc: bess@ietf.org Subject: RE: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' Jorge, Understood, many thanks. Now that the default tunnel encapsulation is MPLS = encapsulation, the tunnel type 10 seems to be unneccessary. So is the intro= duction of tunnel type 10 just for further removing ambiguity? If i don't u= se the tunnel type 10 in MPLS based EVPN implementation(RFC 7432), it will = also never incur any issue. Am i right? Thanks, weiguo ________________________________ From: BESS [bess-bounces@ietf.org] on behalf of Rabadan, Jorge (Jorge) [jor= ge.rabadan@alcatel-lucent.com] Sent: Wednesday, November 11, 2015 11:47 To: Haoweiguo; sajassi@cisco.com; jdrake@juniper.= net Cc: bess@ietf.org Subject: Re: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' Weiguo, Well, if an RFC7432 implementation does not use the RFC5512 ext community, = the following sentence in the evan-overlay draft should help interoperabili= ty. I personally don=92t see any issues. If the BGP Encapsulation extended community is not present, then the default MPLS encapsulation or a statically configured encapsulation is assumed. Thanks. Jorge From: Haoweiguo > Date: Tuesday, November 10, 2015 at 7:03 PM To: Jorge Rabadan >, "sajassi@cisco.com" >, "jdrake@juniper.net" > Cc: "bess@ietf.org" > Subject: RE: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' Jorge, Thanks for your explanations. However, i still can't understand, i'm sorry. RFC 5512 only defines IP tunnel type and encapsulation attribute, like L2TP= v3,GRE and IP in IP. For RFC 5512, MPLS tunnel doesn't need to be defined = specifically, it is default case. In RFC 7432, the tunnel type 10 also hasn= 't been defined. Later, when the EVPN for overlay network solution was prop= osed, the tunnel type 10 was introduced to differentiate MPLS tunnel and VX= LAN/NVGRE/MPLS Over GRE tunnel, because same route type 1,2,3,4 and 5 are u= sed in both RFC 7432 and the draft 'draft-ietf-bess-evpn-overlay-02'. We ne= ed the tunnel type to clearly notify peer EVPN PE which tunnel(including MP= LS tunnel type) should be used. So it introduced updates on RFC 7432 and w= ill incur some interoperbility issue for RFC 7432. Am i right? Thanks, weiguo ________________________________ From: BESS [bess-bounces@ietf.org] on behalf = of Rabadan, Jorge (Jorge) [jorge.rabadan@alcatel-lucent.com] Sent: Wednesday, November 11, 2015 0:01 To: Haoweiguo; sajassi@cisco.com; jdrake@juniper.= net Cc: bess@ietf.org Subject: Re: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' Weiguo, There are already implementations using value 10 in the RFC5512 BGP encap e= xt community. That is the value you would have in RFC7432 compliant networks where you ca= n also have overlay tunnels. Value 10 would indicate to the ingress PE that= the route needs an MPLS tunnel to be resolved. Thx Jorge From: BESS > on behalf = of Haoweiguo > Date: Tuesday, November 10, 2015 at 1:05 AM To: "sajassi@cisco.com" >, "jdrake@juniper.net" > Cc: "bess@ietf.org" > Subject: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' Hi Ali & John, The draft of 'draft-ietf-bess-evpn-overlay-02' describes how EVPN can be us= ed for Overlay network, the overlay network includes VXLAN, NVGRE and MPLS = Over GRE. In section 13 IANA considerations, several overlay tunnel types are request= ed as follows: 8 VXLAN Encapsulation 9 NVGRE Encapsulation 10 MPLS Encapsulation (?) 11 MPLS in GRE Encapsulation 12 VXLAN GPE Encapsulation IMO, 8,9,11 and 12 are all overlay encapsulations, 10 is an exception. Woul= d you like to explain what's the purpose of tunnel type 10? Thanks, weiguo --_000_DD5FC8DE455C3348B94340C0AB5517334F8D6DF8nkgeml501mbschi_ Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable

John,

It's clear, great thanks. Yes, i= t's needed in order to distinguish between an advertising node that only su= pport non-MPLS encapsulations and one that supports MPLS and non-MPLS encap= sulations. If has no this MPLS encapsulation type, the node that supports MPLS and non-MPLS encapsulations will deemed = to be the node that only support non-MPLS encapsulations by remote EVPN PEs= .

Thanks,

weiguo


From: John E Drake [jdrake@juniper.net]
Sent: Wednesday, November 11, 2015 22:39
To: Haoweiguo; Rabadan, Jorge (Jorge); sajassi@cisco.com
Cc: bess@ietf.org
Subject: RE: [bess] One question about 'draft-ietf-bess-evpn-overlay= -02'

Weiguo,

 

It is needed in order to distinguish between= an advertising node that only supports non-MPLS encapsulations and one tha= t supports MPLS and non-MPLS encapsulations.  An advertising node that only supports MPLS encapsulation does not need to= advertise anything.

 

Yours Irrespectively,

 

John

 

From: Haoweiguo [mailto:haoweiguo@huawei.com]
Sent: Wednesday, November 11, 2015 1:08 AM
To: Rabadan, Jorge (Jorge); sajassi@cisco.com; John E Drake
Cc: bess@ietf.org
Subject: RE: [bess] One question about 'draft-ietf-bess-evpn-overlay= -02'

 

Jorge,

Understo= od, many thanks. Now that the default tunnel encapsulation is MPLS encapsul= ation, the tunnel type 10 seems to be unneccessary. So is the introduction = of tunnel type 10 just for further removing ambiguity? If i don't use the tunnel type 10 in MPLS based EVPN i= mplementation(RFC 7432), it will also never incur any issue. Am i right?

 

Thanks,<= /span>

weiguo


From: BESS [bess-bounces@ietf.org] on behalf of Rabadan, Jorge (Jorge) [jorge.rabadan@alcatel-lucent.com]
Sent: Wednesday, November 11, 2015 11:47
To: Haoweiguo; sajassi@cisco.com; jdrake@juniper.net<= /a>
Cc:
bess@ietf.org=
Subject: Re: [bess] One question about 'draft-ietf-bess-evpn-overlay= -02'

Weiguo,

 

Well, if an RFC7432 imp= lementation does not use the RFC5512 ext community, the following sentence = in the evan-overlay draft should help interoperability. I personally don=92= t see any issues.

 

If th=
e BGP Encapsulation extended community is not present, then the
 =
;  default MPLS encapsulation or a statically configured encapsulation=
 =
;  is assumed.

 

Thanks.

Jorge

 

From: = Haoweiguo <hao= weiguo@huawei.com>
Date: Tuesday, November 10, 2015 at 7:03 PM
To: Jorge Rabadan <jorge.rabadan@alcatel-lucent.com>, "sajassi@cisco.com&q= uot; <sajassi@cis= co.com>, "jdrake@junip= er.net" <jdrake@juniper.net>
Cc: "bess@ie= tf.org" <bes= s@ietf.org>
Subject: RE: [bess] One question about 'draft-ietf-bess-evpn-overlay= -02'

 

Jorge,

Thanks f= or your explanations. However, i still can't understand, i'm sorry.<= /p>

RFC 5512= only defines IP tunnel type and encapsulation attribute, like L2TPv3,GRE a= nd IP in IP.  For RFC 5512, MPLS tunnel doesn't need to be defined spe= cifically, it is default case. In RFC 7432, the tunnel type 10 also hasn't been defined. Later, when the EVPN for over= lay network solution was proposed, the tunnel type 10 was introduced to dif= ferentiate MPLS tunnel and VXLAN/NVGRE/MPLS Over GRE tunnel, because s= ame route type 1,2,3,4 and 5 are used in both RFC 7432 and the draft 'draft-ietf-bess-evpn-overlay-02'. We need = the tunnel type to clearly notify peer EVPN PE which tunnel(including MPLS = tunnel type) should be used.  So it introduced updates on RFC 7432 and= will incur some interoperbility issue for RFC 7432. Am i right?

Thanks,<= /span>

weiguo

 


From: BESS [be= ss-bounces@ietf.org] on behalf of Rabadan, Jorge (Jorge) [jorge.rabadan@alcatel-lucent.com]
Sent: Wednesday, November 11, 2015 0:01
To: Haoweiguo; sajassi@cisco.com; jdrake@juniper.net<= /a>
Cc:
bess@ietf.org=
Subject: Re: [bess] One question about 'draft-ietf-bess-evpn-overlay= -02'

Weiguo, 

 

There are already imple= mentations using value 10 in the RFC5512 BGP encap ext community.

That is the value you w= ould have in RFC7432 compliant networks where you can also have overlay tun= nels. Value 10 would indicate to the ingress PE that the route needs an MPL= S tunnel to be resolved.

 

Thx

Jorge

 

From: = BESS <bess-bo= unces@ietf.org> on behalf of Haoweiguo <haoweiguo@huawei.com>
Date: Tuesday, November 10, 2015 at 1:05 AM
To: "saj= assi@cisco.com" <sajassi@cisco.com>, "jdrake@juniper.net" <jdrake@juniper.net>
Cc: "bess@ie= tf.org" <bes= s@ietf.org>
Subject: [bess] One question about 'draft-ietf-bess-evpn-overlay-02'=

 

Hi Ali &= amp; John,

The draf= t of 'draft-ietf-bess-evpn-overlay-02' describes how EVPN can be used for O= verlay network, the overlay network includes VXLAN, NVGRE and MPLS Over GRE= .

In secti= on 13 IANA considerations, several overlay tunnel types are requested as fo= llows:

8 &= nbsp;  VXLAN Encapsulation
9    NVGRE Encapsulation
10   MPLS Encapsulation   (?)
11   MPLS in GRE Encapsulation
12   VXLAN GPE Encapsulation

 

IMO, 8,9= ,11 and 12 are all overlay encapsulations, 10 is an exception. Would you li= ke to explain what's the purpose of tunnel type 10?

 

Thanks,<= /span>

weiguo

--_000_DD5FC8DE455C3348B94340C0AB5517334F8D6DF8nkgeml501mbschi_-- From nobody Thu Nov 12 00:39:36 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 242DA1ACECD for ; Thu, 12 Nov 2015 00:39:35 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.599 X-Spam-Level: X-Spam-Status: No, score=-2.599 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-0.001, UNPARSEABLE_RELAY=0.001] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id gKfIWBP5obcm for ; Thu, 12 Nov 2015 00:39:32 -0800 (PST) Received: from relais-inet.francetelecom.com (relais-ias244.francetelecom.com [80.12.204.244]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 78AF81ACEC6 for ; Thu, 12 Nov 2015 00:39:32 -0800 (PST) Received: from omfeda07.si.francetelecom.fr (unknown [xx.xx.xx.200]) by omfeda10.si.francetelecom.fr (ESMTP service) with ESMTP id 8315B3741B2 for ; Thu, 12 Nov 2015 09:39:30 +0100 (CET) Received: from Exchangemail-eme1.itn.ftgroup (unknown [10.114.1.183]) by omfeda07.si.francetelecom.fr (ESMTP service) with ESMTP id 5141415808A for ; Thu, 12 Nov 2015 09:39:30 +0100 (CET) Received: from [10.193.71.12] (10.197.38.1) by PEXCVZYH02.corporate.adroot.infra.ftgroup (10.114.1.183) with Microsoft SMTP Server (TLS) id 14.3.248.2; Thu, 12 Nov 2015 09:39:30 +0100 To: References: <486973F4-725A-4510-969F-AD9BC3D34B54@alcatel-lucent.com> <1F70DC8A-2BB5-40C7-89CA-03F6E0784B8B@alcatel-lucent.com> From: Organization: Orange Message-ID: <4550_1447317570_56445042_4550_858_1_56445041.3030507@orange.com> Date: Thu, 12 Nov 2015 09:39:29 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset="utf-8"; format=flowed Content-Transfer-Encoding: 8bit X-Originating-IP: [10.197.38.1] X-PMX-Version: 6.2.1.2478543, Antispam-Engine: 2.7.2.2107409, Antispam-Data: 2015.10.16.122716 Archived-At: Subject: Re: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 12 Nov 2015 08:39:35 -0000 HI John, Weiguo, John E Drake : > > It is needed in order to distinguish between an advertising node that > only supports non-MPLS encapsulations and one that supports MPLS and > non-MPLS encapsulations. An advertising node that only supports MPLS > encapsulation does not need to advertise anything. > By the way, I suggested this to be documented in draft-rosen-idr-tunnel-encaps [1]. Best, -Thomas [1] http://www.ietf.org/mail-archive/web/idr/current/msg14732.html > *From:*Haoweiguo [mailto:haoweiguo@huawei.com] > *Sent:* Wednesday, November 11, 2015 1:08 AM > *To:* Rabadan, Jorge (Jorge); sajassi@cisco.com; John E Drake > *Cc:* bess@ietf.org > *Subject:* RE: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' > > Jorge, > > Understood, many thanks. Now that the default tunnel encapsulation is > MPLS encapsulation, the tunnel type 10 seems to be unneccessary. So is > the introduction of tunnel type 10 just for further removing > ambiguity? If i don't use the tunnel type 10 in MPLS based EVPN > implementation(RFC 7432), it will also never incur any issue. Am i right? > > Thanks, > > weiguo > > ------------------------------------------------------------------------ > > *From:*BESS [bess-bounces@ietf.org] on behalf of Rabadan, Jorge > (Jorge) [jorge.rabadan@alcatel-lucent.com] > *Sent:* Wednesday, November 11, 2015 11:47 > *To:* Haoweiguo; sajassi@cisco.com ; > jdrake@juniper.net > *Cc:* bess@ietf.org > *Subject:* Re: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' > > Weiguo, > > Well, if an RFC7432 implementation does not use the RFC5512 ext > community, the following sentence in the evan-overlay draft should > help interoperability. I personally don’t see any issues. > > If the BGP Encapsulation extended community is not present, then the > default MPLS encapsulation or a statically configured encapsulation > is assumed. > > Thanks. > > Jorge > > *From: *Haoweiguo > > *Date: *Tuesday, November 10, 2015 at 7:03 PM > *To: *Jorge Rabadan >, "sajassi@cisco.com > " >, "jdrake@juniper.net > " > > *Cc: *"bess@ietf.org " > > *Subject: *RE: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' > > Jorge, > > Thanks for your explanations. However, i still can't understand, > i'm sorry. > > RFC 5512 only defines IP tunnel type and encapsulation attribute, > like L2TPv3,GRE and IP in IP. For RFC 5512, MPLS tunnel doesn't > need to be defined specifically, it is default case. In RFC 7432, > the tunnel type 10 also hasn't been defined. Later, when the EVPN > for overlay network solution was proposed, the tunnel type 10 was > introduced to differentiate MPLS tunnel and VXLAN/NVGRE/MPLS Over > GRE tunnel, because same route type 1,2,3,4 and 5 are used in both > RFC 7432 and the draft 'draft-ietf-bess-evpn-overlay-02'. We need > the tunnel type to clearly notify peer EVPN PE which > tunnel(including MPLS tunnel type) should be used. So it > introduced updates on RFC 7432 and will incur some interoperbility > issue for RFC 7432. Am i right? > > Thanks, > > weiguo > > ------------------------------------------------------------------------ > > *From:*BESS [bess-bounces@ietf.org ] > on behalf of Rabadan, Jorge (Jorge) > [jorge.rabadan@alcatel-lucent.com > ] > *Sent:* Wednesday, November 11, 2015 0:01 > *To:* Haoweiguo; sajassi@cisco.com ; > jdrake@juniper.net > *Cc:* bess@ietf.org > *Subject:* Re: [bess] One question about > 'draft-ietf-bess-evpn-overlay-02' > > Weiguo, > > There are already implementations using value 10 in the RFC5512 > BGP encap ext community. > > That is the value you would have in RFC7432 compliant networks > where you can also have overlay tunnels. Value 10 would indicate > to the ingress PE that the route needs an MPLS tunnel to be resolved. > > Thx > > Jorge > > *From: *BESS > on behalf of Haoweiguo > > > *Date: *Tuesday, November 10, 2015 at 1:05 AM > *To: *"sajassi@cisco.com " > >, > "jdrake@juniper.net " > > > *Cc: *"bess@ietf.org " > > *Subject: *[bess] One question about 'draft-ietf-bess-evpn-overlay-02' > > Hi Ali & John, > > The draft of 'draft-ietf-bess-evpn-overlay-02' describes how > EVPN can be used for Overlay network, the overlay network > includes VXLAN, NVGRE and MPLS Over GRE. > > In section 13 IANA considerations, several overlay tunnel > types are requested as follows: > > 8 VXLAN Encapsulation > 9 NVGRE Encapsulation > 10 MPLS Encapsulation (?) > 11 MPLS in GRE Encapsulation > 12 VXLAN GPE Encapsulation > > IMO, 8,9,11 and 12 are all overlay encapsulations, 10 is an > exception. Would you like to explain what's the purpose of > tunnel type 10? > > Thanks, > > weiguo > > > > _______________________________________________ > BESS mailing list > BESS@ietf.org > https://www.ietf.org/mailman/listinfo/bess _________________________________________________________________________________________________________________________ Ce message et ses pieces jointes peuvent contenir des informations confidentielles ou privilegiees et ne doivent donc pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu ce message par erreur, veuillez le signaler a l'expediteur et le detruire ainsi que les pieces jointes. Les messages electroniques etant susceptibles d'alteration, Orange decline toute responsabilite si ce message a ete altere, deforme ou falsifie. Merci. This message and its attachments may contain confidential or privileged information that may be protected by law; they should not be distributed, used or copied without authorisation. If you have received this email in error, please notify the sender and delete this message and its attachments. As emails may be altered, Orange is not liable for messages that have been modified, changed or falsified. Thank you. From nobody Thu Nov 12 00:50:28 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 2F0A91B2A13; Thu, 12 Nov 2015 00:50:27 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.599 X-Spam-Level: X-Spam-Status: No, score=-2.599 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-0.001, UNPARSEABLE_RELAY=0.001] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id OkqWOfm4rmf5; Thu, 12 Nov 2015 00:50:25 -0800 (PST) Received: from relais-inet.francetelecom.com (relais-ias91.francetelecom.com [193.251.215.91]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 729521B2A07; Thu, 12 Nov 2015 00:50:25 -0800 (PST) Received: from omfedm07.si.francetelecom.fr (unknown [xx.xx.xx.3]) by omfedm12.si.francetelecom.fr (ESMTP service) with ESMTP id 88CF818C306; Thu, 12 Nov 2015 09:50:23 +0100 (CET) Received: from Exchangemail-eme1.itn.ftgroup (unknown [10.114.1.183]) by omfedm07.si.francetelecom.fr (ESMTP service) with ESMTP id 6529A4C070; Thu, 12 Nov 2015 09:50:20 +0100 (CET) Received: from [10.193.71.12] (10.197.38.5) by PEXCVZYH02.corporate.adroot.infra.ftgroup (10.114.1.183) with Microsoft SMTP Server (TLS) id 14.3.248.2; Thu, 12 Nov 2015 09:50:20 +0100 References: <5629014C.30508@orange.com> From: Organization: Orange To: BESS Message-ID: <28444_1447318220_564452CC_28444_513_1_564452CB.6020604@orange.com> Date: Thu, 12 Nov 2015 09:50:19 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: <5629014C.30508@orange.com> Content-Type: text/plain; charset="utf-8"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [10.197.38.5] X-PMX-Version: 6.2.1.2478543, Antispam-Engine: 2.7.2.2107409, Antispam-Data: 2015.10.16.122716 Archived-At: Cc: Alvaro Retana , BESS Chairs Subject: [bess] IPR issue resulting in an *Extended* Poll for adoption: draft-hao-bess-inter-nvo3-vpn-option X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 12 Nov 2015 08:50:27 -0000 Hi working group, IPR [1] has been disclosed on draft-hao-bess-inter-nvo3-vpn-optionc during the call for adoption (2015-10-26). We regret that this disclosure came this late in the process, and we have to let the working group comment on this call with full awareness of existing IPR. This call for adoption is thus extended to **November 26th**. In parallel, we will work to understand whether this disclosure is late compared to expectations raised in RFC3979 (we haven't yet determined how the set of authors intersect with the set of inventors on the patent). Best, -Thomas [1] https://datatracker.ietf.org/ipr/2700/ 22/10/2015, Thomas Morin : > Hello working group, > > This email starts a two-week poll on adopting > draft-hao-bess-inter-nvo3-vpn-optionc-03 [1] as a working group item. > > Please send comments to the list and state if you support adoption or > not (in the later case, please also state the reasons). > > This poll runs until **November 13th**. > (3 weeks to account for the busy IETF week) > > > *Coincidentally*, we are also polling for knowledge of any IPR that > applies to this draft, to ensure that IPR has been disclosed in > compliance with IETF IPR rules (see RFCs 3979, 4879, 3669 > and 5378 for more details). > > ==> *If* you are listed as a document author or contributor please > respond to this email and indicate whether or not you are aware of any > relevant IPR. > > The draft will not be adopted until a response has been received from > each author and contributor. > > If you are not listed as an author or contributor, then please > explicitly respond only if you are aware of any IPR that has not yet > been disclosed in conformance with IETF rules. > > Thank you, > > Martin & Thomas > bess chairs > > [1] https://tools.ietf.org/html/draft-hao-bess-inter-nvo3-vpn-optionc-03 > > > > > > > > > > > > > > > > > > > > _______________________________________________ > BESS mailing list > BESS@ietf.org > https://www.ietf.org/mailman/listinfo/bess _________________________________________________________________________________________________________________________ Ce message et ses pieces jointes peuvent contenir des informations confidentielles ou privilegiees et ne doivent donc pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu ce message par erreur, veuillez le signaler a l'expediteur et le detruire ainsi que les pieces jointes. Les messages electroniques etant susceptibles d'alteration, Orange decline toute responsabilite si ce message a ete altere, deforme ou falsifie. Merci. This message and its attachments may contain confidential or privileged information that may be protected by law; they should not be distributed, used or copied without authorisation. If you have received this email in error, please notify the sender and delete this message and its attachments. As emails may be altered, Orange is not liable for messages that have been modified, changed or falsified. Thank you. From nobody Thu Nov 12 06:13:04 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id D47821ACD2D for ; Thu, 12 Nov 2015 06:13:02 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.901 X-Spam-Level: X-Spam-Status: No, score=-1.901 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id N_NCNarw0RUK for ; Thu, 12 Nov 2015 06:12:52 -0800 (PST) Received: from na01-by2-obe.outbound.protection.outlook.com (mail-by2on0116.outbound.protection.outlook.com [207.46.100.116]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id C23051ACD16 for ; Thu, 12 Nov 2015 06:12:52 -0800 (PST) Received: from SN1PR0501MB1709.namprd05.prod.outlook.com (10.163.130.155) by SN1PR0501MB1711.namprd05.prod.outlook.com (10.163.130.157) with Microsoft SMTP Server (TLS) id 15.1.318.15; Thu, 12 Nov 2015 14:12:50 +0000 Received: from SN1PR0501MB1709.namprd05.prod.outlook.com ([10.163.130.155]) by SN1PR0501MB1709.namprd05.prod.outlook.com ([10.163.130.155]) with mapi id 15.01.0318.003; Thu, 12 Nov 2015 14:12:50 +0000 From: John E Drake To: Haoweiguo , "Rabadan, Jorge (Jorge)" , "sajassi@cisco.com" Thread-Topic: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' Thread-Index: AQHRG9ETUP92oWRS5Ua5Lf7oEtipsJ6WArmC//+WFoCAALpxu4AAjp7ggAC0FiGAANqkMA== Date: Thu, 12 Nov 2015 14:12:50 +0000 Message-ID: References: <486973F4-725A-4510-969F-AD9BC3D34B54@alcatel-lucent.com> , <1F70DC8A-2BB5-40C7-89CA-03F6E0784B8B@alcatel-lucent.com> , In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=jdrake@juniper.net; x-originating-ip: [66.129.241.14] x-microsoft-exchange-diagnostics: 1; SN1PR0501MB1711; 5:22pyqe9SqWbaS9fSTNDUE5BHWuPBA5mmromN+jj8fnjtBBk8f1zAzFaZeOattqCLPG2+zQ273FIJ9/Hi72KeAz2kDh3QrgY0k5qtt0WFjrFztfR7973MWMfb08GV8IWQTTAgI7a8jPYYQgwtpSXjtg==; 24:m+uqTPnkvwIi2tz3+wh2setshbcCZWe2U4R9SFDMOjnIDn5riWnMoOgeJCGh2/NNYtAoNorNfdKyUaXnhM2pANlSOy+dWiBn8Sxzy/HF1OQ=; 20:aqLvFqOz64m6HJ92GG3puaXieYo72TrLNP9ILMbq95TuJG2ryVxd6PnwqCgG0k8fe2O+HdVn7av5uPn97uF8vQ== x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:;SRVR:SN1PR0501MB1711; x-microsoft-antispam-prvs: x-exchange-antispam-report-test: UriScan:(138986009662008)(95692535739014)(108003899814671); x-exchange-antispam-report-cfa-test: BCL:0; PCL:0; RULEID:(601004)(2401047)(520078)(8121501046)(5005006)(3002001)(10201501046); SRVR:SN1PR0501MB1711; BCL:0; PCL:0; RULEID:; SRVR:SN1PR0501MB1711; x-forefront-prvs: 07584EDBCD x-forefront-antispam-report: SFV:NSPM; SFS:(10019020)(66654002)(189002)(164054003)(199003)(377454003)(2501003)(11100500001)(50986999)(54356999)(101416001)(81156007)(74316001)(5004730100002)(87936001)(5001960100002)(76176999)(2950100001)(5001770100001)(97736004)(19625215002)(16236675004)(19609705001)(106356001)(105586002)(66066001)(106116001)(33656002)(122556002)(230783001)(189998001)(19300405004)(10400500002)(19580405001)(76576001)(86362001)(5002640100001)(19580395003)(15975445007)(92566002)(40100003)(102836002)(93886004)(5001920100001)(2900100001)(77096005)(5008740100001)(5007970100001)(99286002)(5003600100002); DIR:OUT; SFP:1102; SCL:1; SRVR:SN1PR0501MB1711; H:SN1PR0501MB1709.namprd05.prod.outlook.com; FPR:; SPF:None; PTR:InfoNoRecords; MX:1; A:1; LANG:en; received-spf: None (protection.outlook.com: juniper.net does not designate permitted sender hosts) spamdiagnosticoutput: 1:23 spamdiagnosticmetadata: NSPM Content-Type: multipart/alternative; boundary="_000_SN1PR0501MB17093A72315F562D9F39D1C1C7120SN1PR0501MB1709_" MIME-Version: 1.0 X-OriginatorOrg: juniper.net X-MS-Exchange-CrossTenant-originalarrivaltime: 12 Nov 2015 14:12:50.3162 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: bea78b3c-4cdb-4130-854a-1d193232e5f4 X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN1PR0501MB1711 Archived-At: Cc: "bess@ietf.org" Subject: Re: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 12 Nov 2015 14:13:03 -0000 --_000_SN1PR0501MB17093A72315F562D9F39D1C1C7120SN1PR0501MB1709_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Weiguo, You're welcome. Yours Irrespectively, John From: Haoweiguo [mailto:haoweiguo@huawei.com] Sent: Wednesday, November 11, 2015 8:17 PM To: John E Drake; Rabadan, Jorge (Jorge); sajassi@cisco.com Cc: bess@ietf.org Subject: RE: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' John, It's clear, great thanks. Yes, it's needed in order to distinguish between = an advertising node that only support non-MPLS encapsulations and one that = supports MPLS and non-MPLS encapsulations. If has no this MPLS encapsulatio= n type, the node that supports MPLS and non-MPLS encapsulations will deemed= to be the node that only support non-MPLS encapsulations by remote EVPN PE= s. Thanks, weiguo ________________________________ From: John E Drake [jdrake@juniper.net] Sent: Wednesday, November 11, 2015 22:39 To: Haoweiguo; Rabadan, Jorge (Jorge); sajassi@cisco.com Cc: bess@ietf.org Subject: RE: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' Weiguo, It is needed in order to distinguish between an advertising node that only = supports non-MPLS encapsulations and one that supports MPLS and non-MPLS en= capsulations. An advertising node that only supports MPLS encapsulation do= es not need to advertise anything. Yours Irrespectively, John From: Haoweiguo [mailto:haoweiguo@huawei.com] Sent: Wednesday, November 11, 2015 1:08 AM To: Rabadan, Jorge (Jorge); sajassi@cisco.com; Jo= hn E Drake Cc: bess@ietf.org Subject: RE: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' Jorge, Understood, many thanks. Now that the default tunnel encapsulation is MPLS = encapsulation, the tunnel type 10 seems to be unneccessary. So is the intro= duction of tunnel type 10 just for further removing ambiguity? If i don't u= se the tunnel type 10 in MPLS based EVPN implementation(RFC 7432), it will = also never incur any issue. Am i right? Thanks, weiguo ________________________________ From: BESS [bess-bounces@ietf.org] on behalf of Rabadan, Jorge (Jorge) [jor= ge.rabadan@alcatel-lucent.com] Sent: Wednesday, November 11, 2015 11:47 To: Haoweiguo; sajassi@cisco.com; jdrake@juniper.= net Cc: bess@ietf.org Subject: Re: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' Weiguo, Well, if an RFC7432 implementation does not use the RFC5512 ext community, = the following sentence in the evan-overlay draft should help interoperabili= ty. I personally don't see any issues. If the BGP Encapsulation extended community is not present, then the default MPLS encapsulation or a statically configured encapsulation is assumed. Thanks. Jorge From: Haoweiguo > Date: Tuesday, November 10, 2015 at 7:03 PM To: Jorge Rabadan >, "sajassi@cisco.com" >, "jdrake@juniper.net" > Cc: "bess@ietf.org" > Subject: RE: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' Jorge, Thanks for your explanations. However, i still can't understand, i'm sorry. RFC 5512 only defines IP tunnel type and encapsulation attribute, like L2TP= v3,GRE and IP in IP. For RFC 5512, MPLS tunnel doesn't need to be defined = specifically, it is default case. In RFC 7432, the tunnel type 10 also hasn= 't been defined. Later, when the EVPN for overlay network solution was prop= osed, the tunnel type 10 was introduced to differentiate MPLS tunnel and VX= LAN/NVGRE/MPLS Over GRE tunnel, because same route type 1,2,3,4 and 5 are u= sed in both RFC 7432 and the draft 'draft-ietf-bess-evpn-overlay-02'. We ne= ed the tunnel type to clearly notify peer EVPN PE which tunnel(including MP= LS tunnel type) should be used. So it introduced updates on RFC 7432 and w= ill incur some interoperbility issue for RFC 7432. Am i right? Thanks, weiguo ________________________________ From: BESS [bess-bounces@ietf.org] on behalf = of Rabadan, Jorge (Jorge) [jorge.rabadan@alcatel-lucent.com] Sent: Wednesday, November 11, 2015 0:01 To: Haoweiguo; sajassi@cisco.com; jdrake@juniper.= net Cc: bess@ietf.org Subject: Re: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' Weiguo, There are already implementations using value 10 in the RFC5512 BGP encap e= xt community. That is the value you would have in RFC7432 compliant networks where you ca= n also have overlay tunnels. Value 10 would indicate to the ingress PE that= the route needs an MPLS tunnel to be resolved. Thx Jorge From: BESS > on behalf = of Haoweiguo > Date: Tuesday, November 10, 2015 at 1:05 AM To: "sajassi@cisco.com" >, "jdrake@juniper.net" > Cc: "bess@ietf.org" > Subject: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' Hi Ali & John, The draft of 'draft-ietf-bess-evpn-overlay-02' describes how EVPN can be us= ed for Overlay network, the overlay network includes VXLAN, NVGRE and MPLS = Over GRE. In section 13 IANA considerations, several overlay tunnel types are request= ed as follows: 8 VXLAN Encapsulation 9 NVGRE Encapsulation 10 MPLS Encapsulation (?) 11 MPLS in GRE Encapsulation 12 VXLAN GPE Encapsulation IMO, 8,9,11 and 12 are all overlay encapsulations, 10 is an exception. Woul= d you like to explain what's the purpose of tunnel type 10? Thanks, weiguo --_000_SN1PR0501MB17093A72315F562D9F39D1C1C7120SN1PR0501MB1709_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Weiguo,

 

You’re welcome.

 

Yours Irrespectively,

 

John

 

From: Haoweiguo [mailto:haoweiguo@hu= awei.com]
Sent: Wednesday, November 11, 2015 8:17 PM
To: John E Drake; Rabadan, Jorge (Jorge); sajassi@cisco.com
Cc: bess@ietf.org
Subject: RE: [bess] One question about 'draft-ietf-bess-evpn-overlay= -02'

 

J= ohn,

I= t's clear, great thanks. Yes, it's needed in order to distinguish between a= n advertising node that only support non-MPLS encapsulations and one that s= upports MPLS and non-MPLS encapsulations. If has no this MPLS encapsulation type, the node that supports MPLS and non-M= PLS encapsulations will deemed to be the node that only support non-MPLS en= capsulations by remote EVPN PEs.

T= hanks,

w= eiguo


From:<= /span> John E Drake [jdrake@juniper.net]
Sent: Wednesday, November 11, 2015 22:39
To: Haoweiguo; Rabadan, Jorge (Jorge); sajassi@cisco.com
Cc: bess@ietf.org
Subject: RE: [bess] One question about 'draft-ietf-bess-evpn-overlay= -02'

Weiguo,

 =

It is needed in order to distinguish = between an advertising node that only supports non-MPLS encapsulations and = one that supports MPLS and non-MPLS encapsulations.  An advertising node that only supports MPLS encapsulation does not need to= advertise anything.

 =

Yours Irrespectively,

 =

John

 =

From: Haowei= guo [mailto:haoweiguo@huawei.com]
Sent: Wednesday, November 11, 2015 1:08 AM
To: Rabadan, Jorge (Jorge);
saj= assi@cisco.com; John E Drake
Cc: bess@ietf.org
Subject: RE: [bess] One question about 'draft-ietf-bess-evpn-overlay= -02'

 =

J= orge,

U= nderstood, many thanks. Now that the default tunnel encapsulation is MPLS e= ncapsulation, the tunnel type 10 seems to be unneccessary. So is the introd= uction of tunnel type 10 just for further removing ambiguity? If i don't use the tunnel type 10 in MPLS based EVPN implementa= tion(RFC 7432), it will also never incur any issue. Am i right?

 

T= hanks,

w= eiguo


From:<= /span> BESS [bess-bounces@ietf.org] on behalf of Rabadan, Jorge (Jorge) [jorge.rabadan@alcatel-lucent.com]
Sent: Wednesday, November 11, 2015 11:47
To: Haoweiguo; sajassi@cisco.com; jdrake@juniper.net<= /a>
Cc:
bess@ietf.org=
Subject: Re: [bess] One question about 'draft-ietf-bess-evpn-overlay= -02'

Weiguo,

 =

Well, if an RFC7432 impl= ementation does not use the RFC5512 ext community, the following sentence i= n the evan-overlay draft should help interoperability. I personally donR= 17;t see any issues.

 =

If the =
BGP Encapsulation extended community is not present, then the
 &=
nbsp; default MPLS encapsulation or a statically configured encapsulation
 &=
nbsp; is assumed.

 =

Thanks.

Jorge<= /p>

 =

From: Haoweiguo <haoweiguo@huawei.com>
Date: Tuesday, November 10, 2015 at 7:03 PM
To: Jorge Rabadan <jorge.rabadan@alcatel-lucent.com>, "sajassi@cisco.com&q= uot; <sajassi@cis= co.com>, "jdrake@junip= er.net" <jdrake@juniper.net>
Cc: "bess@ie= tf.org" <bes= s@ietf.org>
Subject: RE: [bess] One question about 'draft-ietf-bess-evpn-overlay= -02'

 =

J= orge,

T= hanks for your explanations. However, i still can't understand, i'm sorry.<= /span>

R= FC 5512 only defines IP tunnel type and encapsulation attribute, like L2TPv= 3,GRE and IP in IP.  For RFC 5512, MPLS tunnel doesn't need to be defi= ned specifically, it is default case. In RFC 7432, the tunnel type 10 also hasn't been defined. Later, when the EVPN for over= lay network solution was proposed, the tunnel type 10 was introduced to dif= ferentiate MPLS tunnel and VXLAN/NVGRE/MPLS Over GRE tunnel, because s= ame route type 1,2,3,4 and 5 are used in both RFC 7432 and the draft 'draft-ietf-bess-evpn-overlay-02'. We need = the tunnel type to clearly notify peer EVPN PE which tunnel(including MPLS = tunnel type) should be used.  So it introduced updates on RFC 7432 and= will incur some interoperbility issue for RFC 7432. Am i right?

T= hanks,

w= eiguo

 


From:<= /span> BESS [bess-bounces@ietf.org] on behalf of Rabadan, Jorge (Jorge) [jorge.rabadan@alcatel-lucent.com]
Sent: Wednesday, November 11, 2015 0:01
To: Haoweiguo; sajassi@cisco.com; jdrake@juniper.net<= /a>
Cc:
bess@ietf.org=
Subject: Re: [bess] One question about 'draft-ietf-bess-evpn-overlay= -02'

Weiguo, =

 =

There are already implem= entations using value 10 in the RFC5512 BGP encap ext community.=

That is the value you wo= uld have in RFC7432 compliant networks where you can also have overlay tunn= els. Value 10 would indicate to the ingress PE that the route needs an MPLS= tunnel to be resolved.

 =

Thx

Jorge<= /p>

 =

From: BESS <= bess-bounces@ietf.org> on behalf of Haoweiguo <haoweiguo@huawei.com>
Date: Tuesday, November 10, 2015 at 1:05 AM
To: "saj= assi@cisco.com" <sajassi@cisco.com>, "jdrake@juniper.net" <jdrake@juniper.net>
Cc: "bess@ie= tf.org" <bes= s@ietf.org>
Subject: [bess] One question about 'draft-ietf-bess-evpn-overlay-02'=

 =

H= i Ali & John,

T= he draft of 'draft-ietf-bess-evpn-overlay-02' describes how EVPN can be use= d for Overlay network, the overlay network includes VXLAN, NVGRE and MPLS O= ver GRE.

I= n section 13 IANA considerations, several overlay tunnel types are requeste= d as follows:

8=     VXLAN Encapsulation
9    NVGRE Encapsulation
10   MPLS Encapsulation   (?)
11   MPLS in GRE Encapsulation
12   VXLAN GPE Encapsulation

 

I= MO, 8,9,11 and 12 are all overlay encapsulations, 10 is an exception. Would= you like to explain what's the purpose of tunnel type 10?

 

T= hanks,

weiguo

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DQo+IElmIHlvdSBoYXZlIHJlY2VpdmVkIHRoaXMgZW1haWwgaW4gZXJyb3IsIHBsZWFzZSBub3Rp ZnkgdGhlIHNlbmRlciBhbmQgZGVsZXRlDQo+IHRoaXMgbWVzc2FnZSBhbmQgaXRzIGF0dGFjaG1l bnRzLg0KPiBBcyBlbWFpbHMgbWF5IGJlIGFsdGVyZWQsIE9yYW5nZSBpcyBub3QgbGlhYmxlIGZv ciBtZXNzYWdlcyB0aGF0IGhhdmUgYmVlbg0KPiBtb2RpZmllZCwgY2hhbmdlZCBvciBmYWxzaWZp ZWQuDQo+IFRoYW5rIHlvdS4NCj4gDQo+IF9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fDQo+IEJFU1MgbWFpbGluZyBsaXN0DQo+IEJFU1NAaWV0Zi5vcmcNCj4g aHR0cHM6Ly93d3cuaWV0Zi5vcmcvbWFpbG1hbi9saXN0aW5mby9iZXNzDQo= From nobody Thu Nov 12 07:08:04 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 3B6271ACCFC for ; Thu, 12 Nov 2015 07:08:04 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.194 X-Spam-Level: X-Spam-Status: No, score=-3.194 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, FREEMAIL_FROM=0.001, HELO_EQ_FR=0.35, RCVD_IN_DNSWL_MED=-2.3, SPF_SOFTFAIL=0.665, T_RP_MATCHES_RCVD=-0.01] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id u_OG-f1gmQiK for ; Thu, 12 Nov 2015 07:08:01 -0800 (PST) Received: from r-mail2.rd.orange.com (r-mail2.rd.orange.com [217.108.152.42]) by ietfa.amsl.com (Postfix) with ESMTP id D68591A912C for ; Thu, 12 Nov 2015 07:08:00 -0800 (PST) Received: from r-mail2.rd.orange.com (localhost.localdomain [127.0.0.1]) by localhost (Postfix) with SMTP id 8C6415D89A5; Thu, 12 Nov 2015 16:07:51 +0100 (CET) Received: from FTRDCH01.rd.francetelecom.fr (unknown [10.194.32.11]) by r-mail2.rd.orange.com (Postfix) with ESMTP id 80FA75D895F; Thu, 12 Nov 2015 16:07:51 +0100 (CET) Received: from [10.193.71.12] (10.193.71.12) by FTRDCH01.rd.francetelecom.fr (10.194.32.11) with Microsoft SMTP Server id 14.3.224.2; Thu, 12 Nov 2015 16:07:59 +0100 To: John E Drake , "bess@ietf.org" References: <486973F4-725A-4510-969F-AD9BC3D34B54@alcatel-lucent.com> <1F70DC8A-2BB5-40C7-89CA-03F6E0784B8B@alcatel-lucent.com> <4550_1447317570_56445042_4550_858_1_56445041.3030507@orange.com> From: Thomas Morin Organization: Orange Message-ID: <5644AB4F.6030708@orange.com> Date: Thu, 12 Nov 2015 16:07:59 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset="utf-8"; format=flowed Content-Transfer-Encoding: 8bit Archived-At: Cc: Eric Rosen Subject: Re: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 12 Nov 2015 15:08:04 -0000 Hi John, 2015-11-12, John E Drake: > > Why do you think it should be documented in Eric's draft rather than in the EVPN Overlay draft? The issue applies beyond the context of E-VPN overlay specs, and exist in any context where different kinds of MPLS(/x) encaps can be mixed (E-VPN non-overlay, IP VPNs), which is addressed by Eric's draft. Best, -Thomas > >> -----Original Message----- >> From: BESS [mailto:bess-bounces@ietf.org] On Behalf Of >> thomas.morin@orange.com >> Sent: Thursday, November 12, 2015 3:39 AM >> To: bess@ietf.org >> Subject: Re: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' >> >> HI John, Weiguo, >> >> John E Drake : >>> >>> It is needed in order to distinguish between an advertising node that >>> only supports non-MPLS encapsulations and one that supports MPLS and >>> non-MPLS encapsulations. An advertising node that only supports MPLS >>> encapsulation does not need to advertise anything. >>> >> >> By the way, I suggested this to be documented in draft-rosen-idr-tunnel- >> encaps [1]. >> >> Best, >> >> -Thomas >> >> [1] http://www.ietf.org/mail-archive/web/idr/current/msg14732.html >> >> >>> *From:*Haoweiguo [mailto:haoweiguo@huawei.com] >>> *Sent:* Wednesday, November 11, 2015 1:08 AM >>> *To:* Rabadan, Jorge (Jorge); sajassi@cisco.com; John E Drake >>> *Cc:* bess@ietf.org >>> *Subject:* RE: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' >>> >>> Jorge, >>> >>> Understood, many thanks. Now that the default tunnel encapsulation is >>> MPLS encapsulation, the tunnel type 10 seems to be unneccessary. So is >>> the introduction of tunnel type 10 just for further removing >>> ambiguity? If i don't use the tunnel type 10 in MPLS based EVPN >>> implementation(RFC 7432), it will also never incur any issue. Am i right? >>> >>> Thanks, >>> >>> weiguo >>> >>> ---------------------------------------------------------------------- >>> -- >>> >>> *From:*BESS [bess-bounces@ietf.org] on behalf of Rabadan, Jorge >>> (Jorge) [jorge.rabadan@alcatel-lucent.com] >>> *Sent:* Wednesday, November 11, 2015 11:47 >>> *To:* Haoweiguo; sajassi@cisco.com ; >>> jdrake@juniper.net >>> *Cc:* bess@ietf.org >>> *Subject:* Re: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' >>> >>> Weiguo, >>> >>> Well, if an RFC7432 implementation does not use the RFC5512 ext >>> community, the following sentence in the evan-overlay draft should >>> help interoperability. I personally don’t see any issues. >>> >>> If the BGP Encapsulation extended community is not present, then the >>> default MPLS encapsulation or a statically configured encapsulation >>> is assumed. >>> >>> Thanks. >>> >>> Jorge >>> >>> *From: *Haoweiguo > > >>> *Date: *Tuesday, November 10, 2015 at 7:03 PM >>> *To: *Jorge Rabadan >> >, "sajassi@cisco.com >>> " >> >, "jdrake@juniper.net >>> " >> > >>> *Cc: *"bess@ietf.org " >> > >>> *Subject: *RE: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' >>> >>> Jorge, >>> >>> Thanks for your explanations. However, i still can't understand, >>> i'm sorry. >>> >>> RFC 5512 only defines IP tunnel type and encapsulation attribute, >>> like L2TPv3,GRE and IP in IP. For RFC 5512, MPLS tunnel doesn't >>> need to be defined specifically, it is default case. In RFC 7432, >>> the tunnel type 10 also hasn't been defined. Later, when the EVPN >>> for overlay network solution was proposed, the tunnel type 10 was >>> introduced to differentiate MPLS tunnel and VXLAN/NVGRE/MPLS Over >>> GRE tunnel, because same route type 1,2,3,4 and 5 are used in both >>> RFC 7432 and the draft 'draft-ietf-bess-evpn-overlay-02'. We need >>> the tunnel type to clearly notify peer EVPN PE which >>> tunnel(including MPLS tunnel type) should be used. So it >>> introduced updates on RFC 7432 and will incur some interoperbility >>> issue for RFC 7432. Am i right? >>> >>> Thanks, >>> >>> weiguo >>> >>> >>> ---------------------------------------------------------------------- >>> -- >>> >>> *From:*BESS [bess-bounces@ietf.org ] >>> on behalf of Rabadan, Jorge (Jorge) >>> [jorge.rabadan@alcatel-lucent.com >>> ] >>> *Sent:* Wednesday, November 11, 2015 0:01 >>> *To:* Haoweiguo; sajassi@cisco.com ; >>> jdrake@juniper.net >>> *Cc:* bess@ietf.org >>> *Subject:* Re: [bess] One question about >>> 'draft-ietf-bess-evpn-overlay-02' >>> >>> Weiguo, >>> >>> There are already implementations using value 10 in the RFC5512 >>> BGP encap ext community. >>> >>> That is the value you would have in RFC7432 compliant networks >>> where you can also have overlay tunnels. Value 10 would indicate >>> to the ingress PE that the route needs an MPLS tunnel to be resolved. >>> >>> Thx >>> >>> Jorge >>> >>> *From: *BESS >> > on behalf of Haoweiguo >>> > >>> *Date: *Tuesday, November 10, 2015 at 1:05 AM >>> *To: *"sajassi@cisco.com " >>> >, >>> "jdrake@juniper.net " >>> > >>> *Cc: *"bess@ietf.org " >> > >>> *Subject: *[bess] One question about 'draft-ietf-bess-evpn-overlay-02' >>> >>> Hi Ali & John, >>> >>> The draft of 'draft-ietf-bess-evpn-overlay-02' describes how >>> EVPN can be used for Overlay network, the overlay network >>> includes VXLAN, NVGRE and MPLS Over GRE. >>> >>> In section 13 IANA considerations, several overlay tunnel >>> types are requested as follows: >>> >>> 8 VXLAN Encapsulation >>> 9 NVGRE Encapsulation >>> 10 MPLS Encapsulation (?) >>> 11 MPLS in GRE Encapsulation >>> 12 VXLAN GPE Encapsulation >>> >>> IMO, 8,9,11 and 12 are all overlay encapsulations, 10 is an >>> exception. Would you like to explain what's the purpose of >>> tunnel type 10? >>> >>> Thanks, >>> >>> weiguo >>> >>> >>> >>> _______________________________________________ >>> BESS mailing list >>> BESS@ietf.org >>> https://www.ietf.org/mailman/listinfo/bess >> >> From nobody Thu Nov 12 07:25:05 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 98FA01ACEA9 for ; Thu, 12 Nov 2015 07:25:02 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.598 X-Spam-Level: X-Spam-Status: No, score=-2.598 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-0.001, UNPARSEABLE_RELAY=0.001] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id i2P1LArPF6Qk for ; Thu, 12 Nov 2015 07:24:59 -0800 (PST) Received: from relais-inet.francetelecom.com (relais-ias244.francetelecom.com [80.12.204.244]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 47EB61ACEA7 for ; Thu, 12 Nov 2015 07:24:59 -0800 (PST) Received: from omfeda08.si.francetelecom.fr (unknown [xx.xx.xx.201]) by omfeda09.si.francetelecom.fr (ESMTP service) with ESMTP id 7C3ABC01FC; Thu, 12 Nov 2015 16:24:57 +0100 (CET) Received: from Exchangemail-eme1.itn.ftgroup (unknown [10.114.1.183]) by omfeda08.si.francetelecom.fr (ESMTP service) with ESMTP id 5D362384049; Thu, 12 Nov 2015 16:24:57 +0100 (CET) Received: from [10.193.71.12] (10.197.38.3) by PEXCVZYH02.corporate.adroot.infra.ftgroup (10.114.1.183) with Microsoft SMTP Server (TLS) id 14.3.248.2; Thu, 12 Nov 2015 16:24:57 +0100 To: , Wim Henderickx References: <1214F6D7-7E00-4C95-82C4-349393828A92@alcatel-lucent.com> From: Organization: Orange Message-ID: <11888_1447341897_5644AF49_11888_5397_1_5644AF48.6000407@orange.com> Date: Thu, 12 Nov 2015 16:24:56 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: <1214F6D7-7E00-4C95-82C4-349393828A92@alcatel-lucent.com> Content-Type: multipart/alternative; boundary="------------010108070209090704070006" X-Originating-IP: [10.197.38.3] X-PMX-Version: 6.2.1.2478543, Antispam-Engine: 2.7.2.2107409, Antispam-Data: 2015.11.12.142416 Archived-At: Subject: Re: [bess] draft-hao-bess-inter-nvo3-vpn-optionc X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 12 Nov 2015 15:25:02 -0000 --------------010108070209090704070006 Content-Type: text/plain; charset="utf-8"; format=flowed Content-Transfer-Encoding: 8bit Hi Wim, Thanks for your feedback. With my co-chair hat, let met ask a few questions for the sake of well understanding the issue you raise. Henderickx, Wim (Wim): > I don’t support the adoption of this draft as a WG. There is a major > flaw in this proposal: > Basically the encapsulation of VXLAN/NVGRE is incompatible with MPLS > IP-VPNs. VXLAN/NVGRE contains a MAC address and IP-VPNs don’t. This comment only relates to a subset of the encaps proposed in the solution, right ? (e.g. does not apply to MPLS/GRE and MPLS/UDP) On VXLAN/NVGRE, do you challenge the fact that they would be used with a dummy MAC address that would be replaced by the right MAC by a sender based on an ARP request when needed ? > The draft [...] introduces a lot of complexity for nothing. Can you detail what you consider is a lot of complexity ? > > If we want to describe a model C VPN interconnect with a IP fabric in > a DC I recommend to do an informational RFC that describes this using > VXLAN-GPE, MPLSoGRE or MPLSoUDP encapsulation and retain the E2E MPLS > label we defined in RFC4364. My understanding of this draft's value is the fact that it avoids having service-label related state (forwarding and BGP state) on the routers at the DC-WAN border. This is one of the typical property of 4364 option C. It is not obvious at all to me, based on existing spec, how to get the same benefit on the DC-side router in an architecture where the DC-side router also terminates the overlay tunnels. Do you challenge the goal itself (not having service-label related state on the overlay tunnels router) or suggest that the same benefit can be achieved with less complexity ? -Thomas _________________________________________________________________________________________________________________________ Ce message et ses pieces jointes peuvent contenir des informations confidentielles ou privilegiees et ne doivent donc pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu ce message par erreur, veuillez le signaler a l'expediteur et le detruire ainsi que les pieces jointes. Les messages electroniques etant susceptibles d'alteration, Orange decline toute responsabilite si ce message a ete altere, deforme ou falsifie. Merci. This message and its attachments may contain confidential or privileged information that may be protected by law; they should not be distributed, used or copied without authorisation. If you have received this email in error, please notify the sender and delete this message and its attachments. As emails may be altered, Orange is not liable for messages that have been modified, changed or falsified. Thank you. --------------010108070209090704070006 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: 8bit
Hi Wim,

Thanks for your feedback.

With my co-chair hat, let met ask a few questions for the sake of well understanding the issue you raise.

Henderickx, Wim (Wim):
I don’t support the adoption of this draft as a WG. There is a major flaw in this proposal:
Basically the encapsulation of VXLAN/NVGRE is incompatible with MPLS IP-VPNs. VXLAN/NVGRE contains a MAC address and IP-VPNs don’t.

This comment only relates to a subset of the encaps proposed in the solution, right ?
(e.g. does not apply to MPLS/GRE and MPLS/UDP)

On VXLAN/NVGRE, do you challenge the fact that they would be used with a dummy MAC address that would be replaced by the right MAC by a sender based on an ARP request when needed ?

The draft [...] introduces a lot of complexity for nothing.

Can you detail what you consider is a lot of complexity ?


If we want to describe a model C VPN interconnect with a IP fabric in a DC I recommend to do an informational RFC that describes this using VXLAN-GPE, MPLSoGRE or MPLSoUDP encapsulation and retain the E2E MPLS label we defined in RFC4364.

My understanding of this draft's value is the fact that it avoids having service-label related state (forwarding and BGP state) on the routers at the DC-WAN border.  This is one of the typical property of 4364 option C.    It is not obvious at all to me, based on existing spec, how to get the same benefit on the DC-side router in an architecture where the DC-side router also terminates the overlay tunnels.

Do you challenge the goal itself (not having service-label related state on the overlay tunnels router) or suggest that the same benefit can be achieved with less complexity ?

-Thomas
_________________________________________________________________________________________________________________________

Ce message et ses pieces jointes peuvent contenir des informations confidentielles ou privilegiees et ne doivent donc
pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu ce message par erreur, veuillez le signaler
a l'expediteur et le detruire ainsi que les pieces jointes. Les messages electroniques etant susceptibles d'alteration,
Orange decline toute responsabilite si ce message a ete altere, deforme ou falsifie. Merci.

This message and its attachments may contain confidential or privileged information that may be protected by law;
they should not be distributed, used or copied without authorisation.
If you have received this email in error, please notify the sender and delete this message and its attachments.
As emails may be altered, Orange is not liable for messages that have been modified, changed or falsified.
Thank you.
--------------010108070209090704070006-- From nobody Thu Nov 12 07:37:45 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id DC7DF1ACF19 for ; Thu, 12 Nov 2015 07:37:43 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.91 X-Spam-Level: X-Spam-Status: No, score=-6.91 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_HI=-5, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id kN0TSKCvmZjr for ; Thu, 12 Nov 2015 07:37:41 -0800 (PST) Received: from smtp-fr.alcatel-lucent.com (fr-hpida-esg-02.alcatel-lucent.com [135.245.210.21]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 0ED511ACF1C for ; Thu, 12 Nov 2015 07:37:40 -0800 (PST) Received: from fr712usmtp2.zeu.alcatel-lucent.com (unknown [135.239.2.42]) by Websense Email Security Gateway with ESMTPS id 3E655BBEEFB3; Thu, 12 Nov 2015 15:37:35 +0000 (GMT) Received: from FR711WXCHHUB02.zeu.alcatel-lucent.com (fr711wxchhub02.zeu.alcatel-lucent.com [135.239.2.112]) by fr712usmtp2.zeu.alcatel-lucent.com (GMO) with ESMTP id tACFbcv4018413 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=FAIL); Thu, 12 Nov 2015 16:37:38 +0100 Received: from FR711WXCHMBA07.zeu.alcatel-lucent.com ([169.254.3.17]) by FR711WXCHHUB02.zeu.alcatel-lucent.com ([135.239.2.112]) with mapi id 14.03.0195.001; Thu, 12 Nov 2015 16:37:38 +0100 From: "Henderickx, Wim (Wim)" To: "thomas.morin@orange.com" , "bess@ietf.org" Thread-Topic: [bess] draft-hao-bess-inter-nvo3-vpn-optionc Thread-Index: AQHRHVckJGngb/4i3EuknzuoW5FiTp6YcSAAgAAUTQA= Date: Thu, 12 Nov 2015 15:37:37 +0000 Message-ID: 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([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id TeM5C9iPLKl8 for ; Thu, 12 Nov 2015 08:46:24 -0800 (PST) Received: from relais-inet.orange.com (relais-nor35.orange.com [80.12.70.35]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 7A91B1B2B13 for ; Thu, 12 Nov 2015 08:46:24 -0800 (PST) Received: from opfednr01.francetelecom.fr (unknown [xx.xx.xx.65]) by opfednr21.francetelecom.fr (ESMTP service) with ESMTP id 10F66C00C8; Thu, 12 Nov 2015 17:46:23 +0100 (CET) Received: from Exchangemail-eme1.itn.ftgroup (unknown [xx.xx.1.183]) by opfednr01.francetelecom.fr (ESMTP service) with ESMTP id DCCDD1A0056; Thu, 12 Nov 2015 17:46:22 +0100 (CET) Received: from [10.193.71.12] (10.197.38.5) by PEXCVZYH02.corporate.adroot.infra.ftgroup (10.114.1.183) with Microsoft SMTP Server (TLS) id 14.3.248.2; Thu, 12 Nov 2015 17:46:22 +0100 To: "Henderickx, Wim (Wim)" , "bess@ietf.org" References: <1214F6D7-7E00-4C95-82C4-349393828A92@alcatel-lucent.com> <11888_1447341897_5644AF49_11888_5397_1_5644AF48.6000407@orange.com> <31144DC0-E53C-4890-AD51-29A49C45F6DB@alcatel-lucent.com> From: Organization: Orange Message-ID: <26952_1447346782_5644C25E_26952_9119_1_5644C25D.8070806@orange.com> Date: Thu, 12 Nov 2015 17:46:21 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: <31144DC0-E53C-4890-AD51-29A49C45F6DB@alcatel-lucent.com> Content-Type: multipart/alternative; boundary="------------020808050202090800040307" X-Originating-IP: [10.197.38.5] Archived-At: Subject: Re: [bess] draft-hao-bess-inter-nvo3-vpn-optionc X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 12 Nov 2015 16:46:28 -0000 --------------020808050202090800040307 Content-Type: text/plain; charset="utf-8"; format=flowed Content-Transfer-Encoding: 8bit Wim, (below) 2015-11-12, Henderickx, Wim (Wim): > > Henderickx, Wim (Wim): >> I don’t support the adoption of this draft as a WG. There is a major >> flaw in this proposal: >> Basically the encapsulation of VXLAN/NVGRE is incompatible with MPLS >> IP-VPNs. VXLAN/NVGRE contains a MAC address and IP-VPNs don’t. > > This comment only relates to a subset of the encaps proposed in the > solution, right ? > (e.g. does not apply to MPLS/GRE and MPLS/UDP) > > WH> even for the encapsulations that don’t have this issue, 1 the UDP > port proposal breaks some of the protocols so we should never do this, Sorry to insist, but where do some protocol break when used with a non-standard port as dstport ? > 2 for the IP addressing it is way to complex to configure and maintain. I agree with that. > As such the proposal for me would be to do the 3 label stack as we > have in standard MPLS option C which you can do with the > encapsulations I mentioned. > > > On VXLAN/NVGRE, do you challenge the fact that they would be used with > a dummy MAC address that would be replaced by the right MAC by a > sender based on an ARP request when needed ? Is the above the issue you had in mind about VXLAN and NVGRE ? > >> The draft [...] introduces a lot of complexity for nothing. > > Can you detail what you consider is a lot of complexity ? > WH> UDP ports and IP address prefix maintenance I agree for the alternative in which multiple IPs are used. But I don't think using multiple port would be complex, the configuration on the box can simply consist of a range of ports to use and the rest would be (quite simply) automated. > >> >> If we want to describe a model C VPN interconnect with a IP fabric in >> a DC I recommend to do an informational RFC that describes this using >> VXLAN-GPE, MPLSoGRE or MPLSoUDP encapsulation and retain the E2E MPLS >> label we defined in RFC4364. > > My understanding of this draft's value is the fact that it avoids > having service-label related state (forwarding and BGP state) on the > routers at the DC-WAN border. This is one of the typical property of > 4364 option C. It is not obvious at all to me, based on existing > spec, how to get the same benefit on the DC-side router in an > architecture where the DC-side router also terminates the overlay tunnels. > > Do you challenge the goal itself (not having service-label related > state on the overlay tunnels router) or suggest that the same benefit > can be achieved with less complexity ? > > WH> the proposal I mentioned is achieving the same goal w/o the > complexity in the DC GW and using already standardised mechanisms to > do so. Let me try to recap. For traffic going from the DC to the WAN, the DC/WAN router terminating the overlay will have to translate from for instance an MPLS/UDP/IP encap into an MPLS/MPLS(/MPLS) encap ; assuming that the bottom label isn't changed the information to determine the other label(s) has to be derived from the UDP or IP header. The draft we discuss relies on the UDP port (or IP address). You mention a 3-label option C, are you suggesting the use of MPLS/MPLS/UDP where the top MPLS label would play the role of the middle label in an typical 3-label option-C stack, and would be used to determine the destination-PE label between ASBRs ? Best, -Thomas _________________________________________________________________________________________________________________________ Ce message et ses pieces jointes peuvent contenir des informations confidentielles ou privilegiees et ne doivent donc pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu ce message par erreur, veuillez le signaler a l'expediteur et le detruire ainsi que les pieces jointes. Les messages electroniques etant susceptibles d'alteration, France Telecom - Orange decline toute responsabilite si ce message a ete altere, deforme ou falsifie. Merci This message and its attachments may contain confidential or privileged information that may be protected by law; they should not be distributed, used or copied without authorization. If you have received this email in error, please notify the sender and delete this message and its attachments. As emails may be altered, France Telecom - Orange shall not be liable if this message was modified, changed or falsified. Thank you. --------------020808050202090800040307 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: 8bit
Wim,

(below)

2015-11-12, Henderickx, Wim (Wim):

Henderickx, Wim (Wim):
I don’t support the adoption of this draft as a WG. There is a major flaw in this proposal:
Basically the encapsulation of VXLAN/NVGRE is incompatible with MPLS IP-VPNs. VXLAN/NVGRE contains a MAC address and IP-VPNs don’t.

This comment only relates to a subset of the encaps proposed in the solution, right ?
(e.g. does not apply to MPLS/GRE and MPLS/UDP)

WH> even for the encapsulations that don’t have this issue, 1 the UDP port proposal breaks some of the protocols so we should never do this,

Sorry to insist, but where do some protocol break when used with a non-standard port as dstport ?

2 for the IP addressing it is way to complex to configure and maintain.

I agree with that.

As such the proposal for me would be to do the 3 label stack as we have in standard MPLS option C which you can do with the encapsulations I mentioned.


On VXLAN/NVGRE, do you challenge the fact that they would be used with a dummy MAC address that would be replaced by the right MAC by a sender based on an ARP request when needed ?

Is the above the issue you had in mind about VXLAN and NVGRE ?



The draft [...] introduces a lot of complexity for nothing.

Can you detail what you consider is a lot of complexity ?
WH> UDP ports and IP address prefix maintenance

I agree for the alternative in which multiple IPs are used.
But I don't think using multiple port would be complex, the configuration on the box can simply consist of a range of ports to use and the rest would be (quite simply) automated.




If we want to describe a model C VPN interconnect with a IP fabric in a DC I recommend to do an informational RFC that describes this using VXLAN-GPE, MPLSoGRE or MPLSoUDP encapsulation and retain the E2E MPLS label we defined in RFC4364.

My understanding of this draft's value is the fact that it avoids having service-label related state (forwarding and BGP state) on the routers at the DC-WAN border.  This is one of the typical property of 4364 option C.    It is not obvious at all to me, based on existing spec, how to get the same benefit on the DC-side router in an architecture where the DC-side router also terminates the overlay tunnels.

Do you challenge the goal itself (not having service-label related state on the overlay tunnels router) or suggest that the same benefit can be achieved with less complexity ?

WH> the proposal I mentioned is achieving the same goal w/o the complexity in the DC GW and using already standardised mechanisms to do so.

Let me try to recap.

For traffic going from the DC to the WAN, the DC/WAN router terminating the overlay will have to translate from for instance an MPLS/UDP/IP encap into an MPLS/MPLS(/MPLS) encap ; assuming that the bottom label isn't changed the information to determine the other label(s) has to be derived from the UDP or IP header.  The draft we discuss relies on the UDP port (or IP address).

You mention a 3-label option C, are you suggesting the use of MPLS/MPLS/UDP where the top MPLS label would play the role of the middle label in an typical 3-label option-C stack, and would be used to determine the destination-PE label between ASBRs ?

Best,

-Thomas

_________________________________________________________________________________________________________________________

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pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu ce message par erreur, veuillez le signaler
a l'expediteur et le detruire ainsi que les pieces jointes. Les messages electroniques etant susceptibles d'alteration,
France Telecom - Orange decline toute responsabilite si ce message a ete altere, deforme ou falsifie. Merci

This message and its attachments may contain confidential or privileged information that may be protected by law;
they should not be distributed, used or copied without authorization.
If you have received this email in error, please notify the sender and delete this message and its attachments.
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--------------020808050202090800040307-- From nobody Thu Nov 12 11:50:59 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id D29E51B331B; Thu, 12 Nov 2015 11:50:57 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.51 X-Spam-Level: X-Spam-Status: No, score=-14.51 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_HI=-5, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 0PU9fjfM06Vc; Thu, 12 Nov 2015 11:50:54 -0800 (PST) Received: from alln-iport-5.cisco.com (alln-iport-5.cisco.com [173.37.142.92]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 6D9D51B3318; Thu, 12 Nov 2015 11:50:54 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=22428; q=dns/txt; s=iport; t=1447357855; x=1448567455; h=from:to:cc:subject:date:message-id:mime-version; bh=2STHukLQBwr122xfryF51KuadMfcd5+8i3e4TctiG30=; b=NyGpiLgSwhom8oyXRa10jw+/g1C/ihPPPmA/R9dI/Q34IrmSLmLxUYST CMwrzxfHcm0KRyhXs7clvUP4Gj2U3j0Qh/Mf8gzOCWGqMOIcbGW1qQp7H An8eOR0+TP40U4bTyKDhERPtexGNqmh8vlZM8y2hNo9Zw223dFg8fyY5X Y=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A0D0AQDa7ERW/4YNJK1egm5NgUi+OQENgWWGEIFAOBQBAQEBAQEBfwuENwRnEhIBgQAnBA4ZB4gTxDQBAQEBAQUBAQEBAQEdhlQBiTKFBAWWSAGHSEWFGYFbhECDJYoxiFMBHwEBQoIRBRiBVoRmQoEHAQEB X-IronPort-AV: E=Sophos;i="5.20,283,1444694400"; d="scan'208,217";a="207580422" Received: from alln-core-12.cisco.com ([173.36.13.134]) by alln-iport-5.cisco.com with ESMTP; 12 Nov 2015 19:50:53 +0000 Received: from XCH-ALN-002.cisco.com (xch-aln-002.cisco.com [173.36.7.12]) by alln-core-12.cisco.com (8.14.5/8.14.5) with ESMTP id tACJorQV002800 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL); Thu, 12 Nov 2015 19:50:53 GMT Received: from xch-aln-002.cisco.com (173.36.7.12) by XCH-ALN-002.cisco.com (173.36.7.12) with Microsoft SMTP Server (TLS) id 15.0.1104.5; Thu, 12 Nov 2015 13:50:52 -0600 Received: from xch-aln-002.cisco.com ([173.36.7.12]) by XCH-ALN-002.cisco.com ([173.36.7.12]) with mapi id 15.00.1104.000; Thu, 12 Nov 2015 13:50:52 -0600 From: "Alvaro Retana (aretana)" To: "draft-ietf-bess-mvpn-extranet@ietf.org" Thread-Topic: AD Review of draft-ietf-bess-mvpn-extranet-03 Thread-Index: AQHRHYNvyjwvQsIUU0exAcHYeBpG+Q== Date: Thu, 12 Nov 2015 19:50:52 +0000 Message-ID: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.117.15.3] Content-Type: multipart/alternative; boundary="_000_D2688C8AE97D0aretanaciscocom_" MIME-Version: 1.0 Archived-At: Cc: "bess-chairs@ietf.org" , "VIGOUREUX, MARTIN \(MARTIN\)" , "bess@ietf.org" Subject: [bess] AD Review of draft-ietf-bess-mvpn-extranet-03 X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 12 Nov 2015 19:50:58 -0000 --_000_D2688C8AE97D0aretanaciscocom_ Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Hi! I just finished reading this document. As mentioned by the WG chairs at the meeting in Yokohama, the technology in= bess can be complex and hard to penetrate for the average (or novice) read= er. While the target of documents like this one is not always the average = (or novice) reader, it is important that those readers (including the IESG = and other review directorates) are able to at least understand what's going= on. Most of my comments (below) are around readability/clarity. In general I found the document (relatively) not hard to follow, if you rea= d it end-to-end =97 it may be harder for someone to jump in and read/review= a specific section without the benefit of building up to it. Because of= the length of the document, it would be nice to include a "road map" to gu= ide the reader (in general: "Section x talks about X, Section y covers Y, e= tc."). It might be easier to include references to the specific sections i= n 1.4 (Overview). This is a long standards track document, so it is bound to have a lot of no= rmative language. On one hand I don't want to go overboard with explicitly= mandating every little step..but at the same time we want to be clear as t= o what is "actually required for interoperation or to limit behavior which = has potential for causing harm" [RFC2119]. Due to the potential of bad con= figurations resulting in incomplete/illdefined extranets, I can see why the= behavior around RTs would require normative language. However, there are = some places where the use of rfc2119 keywords may be lacking, not needed or= inconsistent. An example of inconsistency is this paragraph from Section = 7.2.3.1. (When Inter-Site Shared Trees Are Used): If VRF-S exports a Source Active A-D route that contains C-S in the Multicast Source field of its NLRI, and if that VRF also exports a UMH-eligible route matching C-S, the Source Active A-D route MUST carry at least one RT in common with the UMH-eligible route. The RT must be chosen such that the following condition holds: if VRF-R contains an extranet C-receiver allowed by policy to receive extranet traffic from C-S, then VRF-R imports both the UMH-eligible route and the Source Active A-D route. .. If the "route MUST carry at least one RT", why isn't the condition to be= met also normative? I don't want to belabor on this specific case, it is = just an example. However, I would appreciate it if the authors would scan = the document for required or unneeded normative language. I pointed at som= e cases in my comments below. I do have a couple of items that I think are Major (see below) that I would= like to see addressed before starting the IETF Last Call. Major: 1. Section 1.3. (Clarification on Use of Route Distinguishers) uses the = word "REQUIREs" in a couple of places. In a strict manner, the rfc2119 key= words is "REQUIRED". While I think that the meaning of using "REQUIREs" s= hould be obvious, please rephrase the text to strictly use the rfc2119 lang= uage. 2. Section 10 (Security Considerations) * What is a "VPN security violation"? It is mentioned in several pl= aces, but it is not explicitly defined. Please either add a reference or b= e clear in what it is. * Misconfiguration is a significant risk, for example assigning the = wrong RTs to the wrong routes. I think that risk should be mentioned. Minor: 1. Section 1.1. (Terminology): "We will sometimes say that a route "matc= hes" a particular host if the route matches an IP address of the host." Gi= ven the previous definition (in the same paragraph) of "match" ("the addres= s prefix of the given route is the longest match in that VRF for the given = IP address") and the use of match there makes it unclear whether you're tal= king about a host route or just the longest match. 2. Section 1.3. (Clarification on Use of Route Distinguishers) * This section explains the "unique VRF per RD" condition a couple o= f times =97 even though the explanation seems to be the same, it would be n= ice if it was explained only once. * ""default RD" (discussed above)" Where this text appears is in fa= ct the first time that a "default RD" is mentioned. I'm guessing that this= refers to the RD in the "unique VRF per RD" condition, but please don't ma= ke the reader guess. 3. Section 4.1. (UMH-Eligible Routes) The "MAY" in the second paragraph= appears to be part of the example. Suggested new text: * The UMH-eligible extranet C-source routes do not necessarily have = to be unicast routes, they MAY be SAFI-129 routes (see Section 5.1.1 of = [RFC6513]). If one wants, e.g., a VPN-R C-receiver to be able to receiv= e extranet C-flows from C-sources in VPN-S, but one does not want any VPN= -R system to be able to send unicast traffic to those C-sources, then the= UMH-eligible routes exported from VPN-S and imported by VPN-R may be SAF= I-129 routes. The SAFI-129 routes are used only for UMH determination, = but not for unicast routing. 4. Section 4.2. (Distribution of Unicast Routes Matching C-RPs and DRs) = "It follows that if a VRF contains C-S, but does not contain a C-RP for C-= G, then the VRF must import a unicast route matching a C-RP for C-G." and "= Similarly, if a VRF contains a C-RP for C-G, but does not contain C-S, the = VRF must import a unicast route matching the DR for C-S." Should those "mu= st" be a "MUST"? 5. Section 4.4.1. (The Extranet Source Extended Community) "=85only use= ful when all the extranet routes from a given VRF are exported with exactly= the same set of RTs. (Cf. Section 4.3.1 of [RFC4364], which does provide= a mechanism=85" Is there any inference that should be made from this tex= t? Should the Extranet Source Extended Community not be used when the mech= anism in rfc4364 is used? Any downsides if both are used? 6. Section 5.2. (Considerations for Particular Inclusive Tunnel Types) * Please include a reference (or definition) for "inclusive tunnel" = (maybe in the Terminology). I couldn't find one in rfc6513, but did in rfc= 7582. * The third paragraph ("In order for VRF-S to set up the P2MP=85") s= eems to explain what is needed for the setup, which is something that I ass= ume is standardized in a different document. If so, then the "MUST" should= n't be normative in this document. s/MUST/must 7. Section 7.2.1. (Intra-AS I-PMSI A-D Routes) "As specified in [RFC651= 4]=85the RTs carried by that route MUST be chosen=85" That "MUST" is reall= y in reference to rfc6514, so it shouldn't be normative in this document. = If you want to stress the "MUST", then one solution could be to quote the r= elevant text; otherwise s/MUST/must 8. It would be nice if section names were used in addition to section nu= mbers when referring to them in the text =97 that would make it easier to r= ecall (or look forward to) the text w/out having to go look at the TOC over= and over. [This point may be able to be addressed by the RFC Editor.] It= looks like you started doing this in some places in Section 7, but it is n= ot consistent. 9. In several places the text reads: "This document provides procedures= =85" Please include a reference to the section where those procedures are. 10. Please expand on first use: * s/S-PMSI/Selective Provider Multicast Service Interface (S-PMSI) * s/SSM/source-specific multicast (SSM) * s/I-PMSI/Inclusive-PMSI (I-PMSI) * s/MI-PMSI/Multidirectional I-PMSI (MI-PMSI) 11. References: Update the reference to rfc4601 to draft-ietf-pim-rfc4601= bis. Nits: 1. Some replacements: * s/misdelivery of data in those scenarios are outlined in those Sec= tion 2.3/misdelivery of data in those scenarios are outlined in Section 2.3 * (6.3.1) s/and Each such/and each such * (7.1) s/"corresponds to" to/"corresponds" to --_000_D2688C8AE97D0aretanaciscocom_ Content-Type: text/html; charset="Windows-1252" Content-ID: <828CFAE7414EAB4982C685A4127BC97D@emea.cisco.com> Content-Transfer-Encoding: quoted-printable
Hi!

I just finished reading this document.

As mentioned by the WG chairs at the meeting in Yokohama, the technology in= bess can be complex and hard to penetrate for the average (or novice) read= er.  While the target of documents like this one is not always th= e average (or novice) reader, it is important that those readers (including the IESG and other review directorates) are = able to at least understand what's going on.  Most of my comments (bel= ow) are around readability/clarity.  

In general I found the document (relatively) not hard to follow, if you rea= d it end-to-end =97 it may be harder for someone to jump in and read/review= a specific section without the benefit of building up to it.    = Because of the length of the document, it would be nice to include a "road map" to guide the reader (in general:= "Section x talks about X, Section y covers Y, etc.").  = ;It might be easier to include references to the specific sections in 1.4 (= Overview).

This is a long standards track document, so it is bound to have a lot of no= rmative language.  On one hand I don't want to go overboard with = explicitly mandating every little step..but at the same time we want to be = clear as to what is "actually required for interoperation or to limit behavior which has potential for causing harm&q= uot; [RFC2119].  Due to the potential of bad configurations resul= ting in incomplete/illdefined extranets, I can see why the behavior around = RTs would require normative language.  However, there are some places where the use of rfc2119 keywords may be lacking, no= t needed or inconsistent.  An example of inconsistency is this pa= ragraph from Section 7.2.3.1. (When Inter-Site Shared Trees Are Used):

   If VRF-S exports a Source Active A-D route that contains C-S= in the
   Multicast Source field of its NLRI, and if that VRF also exp= orts a
   UMH-eligible route matching C-S, the Source Active A-D route= MUST
   carry at least one RT in common with the UMH-eligible route.=   The RT
   must be chosen such that the following condition holds: if V= RF-R
   contains an extranet C-receiver allowed by policy to receive= extranet
   traffic from C-S, then VRF-R imports both the UMH-eligible r= oute and
   the Source Active A-D route.

.. If the "route MUST carry at least one RT", why isn't the condi= tion to be met also normative?  I don't want to belabor on this s= pecific case, it is just an example.  However, I would appreciate it i= f the authors would scan the document for required or unneeded normative language.  I pointed at some cases in my comments below.

I do have a couple of items that I think are Major (see below) that I would= like to see addressed before starting the IETF Last Call.






Major:
  1. Section 1.3. (Clarification on Use of Route Distinguishers) uses the wo= rd "REQUIREs" in a couple of places.  In a strict manne= r, the rfc2119 key words is "REQUIRED".  While I think = that the meaning of using "REQUIREs" should be obvious, please re= phrase the text to strictly use the rfc2119 language.
  2. Section 10 (Securit= y Considerations)
    • What is a "VPN security violation"?  It is mentioned in = several places, but it is not explicitly defined.  Please either add a= reference or be clear in what it is.
    • Misconfiguration is a signifi= cant risk, for example assigning the wrong RTs to the wrong routes.  I= think that risk should be mentioned.

Minor:
  1. Section 1.1. (Terminology): "We will sometimes say that a route "= matches" a particular host if the route matches an IP address of the h= ost."  Given the previous definition (in the same paragraph) of &= quot;match" ("the address prefix of the given route is the longes= t match in that VRF for the given IP address") and the use of match the= re makes it unclear whether you're talking about a host route or just the l= ongest match.
  2. Section 1.3. (Clarification on Use of Route Distinguishers)
    • This section explains the "unique VRF per RD" condition a cou= ple of times =97 even though the explanation seems to be the same, it would= be nice if it was explained only once.
    • ""default RD"= ; (discussed above)"  Where this text appears is in fact the= first time that a "default RD" is mentioned.  I'm gues= sing that this refers to the RD in the "unique VRF per RD" condit= ion, but please don't make the reader guess.
  3. Section 4.1. (UMH-Eligible Routes)  The "MAY" in the se= cond paragraph appears to be part of the example.  Suggested new = text:
    • The UMH-eligible extranet C-source routes do not necessarily have to&nb= sp;  be unicast routes, they MAY be SAFI-129 routes (see Section 5.1.1= of   [RFC6513]).  If one wants, e.g., a VPN-R C-receiv= er to be able   to receive extranet C-flows from C-sources in VPN-S, but one does not   want any VPN-R system to be able to se= nd unicast traffic to those   C-sources, then the UMH-eligible ro= utes exported from VPN-S and   imported by VPN-R may be SAFI-129 = routes.  The SAFI-129 routes are    used only= for UMH determination, but not for unicast routing.
  4. Section 4.2. (Distribution of Unicast Routes Matching C-RPs and DRs) &= nbsp;"It follows that if a VRF contains C-S, but does not contain a C-= RP for C-G, then the VRF must import a unicast route matching a C-RP for C-= G." and "Similarly, if a VRF contains a C-RP for C-G, but does not contain C-S, the VRF must import a unicast route matchin= g the DR for C-S."  Should those "must" be a "= ;MUST"?
  5. Section 4.4.1. (The Extranet Source Extended Community)  "= =85only useful when all the extranet routes from a given VRF are exported w= ith exactly the same set of RTs.  (Cf.  Section 4.3.1 o= f [RFC4364], which does provide a mechanism=85"   Is there a= ny inference that should be made from this text?  Should the Extranet Source = Extended Community not be used when the mechanism in rfc4364 is used? =  Any downsides if both are used?
  6. Section 5.2. (Considerations for Particular Inclusive Tunnel Types)  
    • Please include a reference (or definition) for "inclusive tunnel&q= uot; (maybe in the Terminology).  I couldn't find one in rfc6513,= but did in rfc7582.
    • The third paragraph ("In order for VRF-S = to set up the P2MP=85") seems to explain what is needed for the setup,= which is something that I assume is standardized in a different document.&= nbsp; If so, then the "MUST" shouldn't be normative in this = document.  s/MUST/must
  7. Section 7.2.1. (Intra-AS I-PMSI A-D Routes)  "As specified i= n [RFC6514]=85the RTs carried by that route MUST be chosen=85" &n= bsp;That "MUST" is really in reference to rfc6514, so it shouldn'= t be normative in this document.  If you want to stress the "= ;MUST", then one solution could be to quote the relevant text; otherwise s/MUST/must
  8. It would be nice if section names were used in addition to section numbers = when referring to them in the text =97 that would make it easier to recall = (or look forward to) the text w/out having to go look at the TOC over and o= ver.  [This point may be able to be addressed by the RFC Editor.]  It looks like you started doing this i= n some places in Section 7, but it is not consistent.
  9. In several places the text reads: "This document provides procedures= =85"  Please include a reference to the section where those = procedures are.
  10. Please expand on first use:
    • s/S-PMSI/Selective Provider Multicast Service Interface (S-PMSI)
    •  s/SSM/source-specific multicast (SSM)
    •  s/I-PMSI/Inclus= ive-PMSI (I-PMSI)
    •  s/MI-PMSI/Multidirectional I-PMSI (MI-PMSI)=
  11. References: Update the reference to rfc4601 to draft-ietf-pim-rfc4601bis.
Nits:
  1. Some replacements:
    • s/misdelivery of data in those scenarios are outlined in those Section = 2.3/misdelivery of data in those scenarios are outlined in Section 2.3
    • =
    • (6.3.1) s/and Each such/and each such
    • (7.1) s/"corresponds= to" to/"corresponds" to
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ESMTPS id 597F41B33E9 for ; Thu, 12 Nov 2015 12:06:13 -0800 (PST) Received: from fr712usmtp2.zeu.alcatel-lucent.com (unknown [135.239.2.42]) by Websense Email Security Gateway with ESMTPS id 6C236E946DD99; Thu, 12 Nov 2015 20:06:07 +0000 (GMT) Received: from FR711WXCHHUB01.zeu.alcatel-lucent.com (fr711wxchhub01.zeu.alcatel-lucent.com [135.239.2.111]) by fr712usmtp2.zeu.alcatel-lucent.com (GMO) with ESMTP id tACK6BJs026061 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=FAIL); Thu, 12 Nov 2015 21:06:11 +0100 Received: from FR711WXCHMBA07.zeu.alcatel-lucent.com ([169.254.3.17]) by FR711WXCHHUB01.zeu.alcatel-lucent.com ([135.239.2.111]) with mapi id 14.03.0195.001; Thu, 12 Nov 2015 21:06:07 +0100 From: "Henderickx, Wim (Wim)" To: "thomas.morin@orange.com" , "bess@ietf.org" Thread-Topic: [bess] draft-hao-bess-inter-nvo3-vpn-optionc Thread-Index: AQHRHVckJGngb/4i3EuknzuoW5FiTp6YcSAAgAAUTQCAAAJygIAASIkA Date: Thu, 12 Nov 2015 20:06:03 +0000 Message-ID: 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bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 75ADC1B3CC5 for ; Thu, 12 Nov 2015 17:44:44 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.21 X-Spam-Level: X-Spam-Status: No, score=-4.21 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id p8lYWy3zb9Zu for ; Thu, 12 Nov 2015 17:44:43 -0800 (PST) Received: from lhrrgout.huawei.com (lhrrgout.huawei.com [194.213.3.17]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 89D8C1B3CC1 for ; Thu, 12 Nov 2015 17:44:42 -0800 (PST) Received: from 172.18.7.190 (EHLO lhreml403-hub.china.huawei.com) ([172.18.7.190]) by lhrrg01-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id CEA47083; Fri, 13 Nov 2015 01:44:14 +0000 (GMT) Received: from nkgeml405-hub.china.huawei.com (10.98.56.36) by lhreml403-hub.china.huawei.com (10.201.5.217) with Microsoft SMTP Server (TLS) id 14.3.235.1; Fri, 13 Nov 2015 01:44:12 +0000 Received: from NKGEML501-MBS.china.huawei.com ([169.254.2.75]) by nkgeml405-hub.china.huawei.com ([10.98.56.36]) with mapi id 14.03.0235.001; Fri, 13 Nov 2015 09:44:08 +0800 From: Haoweiguo To: "Henderickx, Wim (Wim)" Thread-Topic: draft-hao-bess-inter-nvo3-vpn-optionc Thread-Index: AQHRHVckJGngb/4i3EuknzuoW5FiTp6ZJ3nr Date: Fri, 13 Nov 2015 01:44:07 +0000 Message-ID: References: <1214F6D7-7E00-4C95-82C4-349393828A92@alcatel-lucent.com> In-Reply-To: <1214F6D7-7E00-4C95-82C4-349393828A92@alcatel-lucent.com> Accept-Language: en-US, zh-CN Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.135.23.94] Content-Type: multipart/alternative; boundary="_000_DD5FC8DE455C3348B94340C0AB5517334F8D8127nkgeml501mbschi_" MIME-Version: 1.0 X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A090204.56454088.005E, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=169.254.2.75, so=2013-06-18 04:22:30, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: 36029bc2f9953782e2e270ed3eaad1c6 Archived-At: Cc: "bess@ietf.org" Subject: Re: [bess] draft-hao-bess-inter-nvo3-vpn-optionc X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 13 Nov 2015 01:44:44 -0000 --_000_DD5FC8DE455C3348B94340C0AB5517334F8D8127nkgeml501mbschi_ Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Hi Wim, It is used for layer 3 VPN CE device to visit IP based overlay data center = network. For layer 3 traffic forwarding, the MAC address in VXLAN/NVGRE is = restricted only in data center inside domain. For the traffic from data cen= ter inside to outside, the inner MAC address(destination MAC is ASBR-d's M= AC, src MAC is NVE's MAC) in VXLAN/NVGRE will be dropped at ASBR-d, only IP= payload will continue to be carried into MPLS network. I can emphasize thi= s point in my later version, it doesn't have much impact on the whole solut= ion. This draft also is suitable for VXLAN-GPE and MPLSoGRE/MPLSoUDP network to = interconnect with MPLS VPN network. In VXLAN-GPE, it supports IP in IP enca= psulation, so no inner MAC concerns. Thanks, weiguo ________________________________ From: BESS [bess-bounces@ietf.org] on behalf of Henderickx, Wim (Wim) [wim.= henderickx@alcatel-lucent.com] Sent: Thursday, November 12, 2015 22:33 To: bess@ietf.org Subject: [bess] draft-hao-bess-inter-nvo3-vpn-optionc I don=92t support the adoption of this draft as a WG. There is a major flaw= in this proposal: Basically the encapsulation of VXLAN/NVGRE is incompatible with MPLS IP-VPN= s. VXLAN/NVGRE contains a MAC address and IP-VPNs don=92t. The draft does n= ot talk about any of this and introduces a lot of complexity for nothing. If we want to describe a model C VPN interconnect with a IP fabric in a DC = I recommend to do an informational RFC that describes this using VXLAN-GPE,= MPLSoGRE or MPLSoUDP encapsulation and retain the E2E MPLS label we define= d in RFC4364. --_000_DD5FC8DE455C3348B94340C0AB5517334F8D8127nkgeml501mbschi_ Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable

Hi Wim,

It is used for layer 3 VPN CE device to visit IP based = overlay data center network. For layer 3 traffic forwarding, the MAC addres= s in VXLAN/NVGRE is restricted only in data center inside domain. For the t= raffic from data center inside to outside,  the inner MAC address(destination MAC is ASBR-d's MAC, src = MAC is NVE's MAC) in VXLAN/NVGRE will be dropped at ASBR-d, only IP payload= will continue to be carried into MPLS network. I can emphasize this point = in my later version, it doesn't have much impact on the whole solution.

This draft also is suitable for VXLAN-GPE and MPLSoGRE/= MPLSoUDP network to interconnect with MPLS VPN network. In VXLAN-GPE, it su= pports IP in IP encapsulation, so no inner MAC concerns.

 

Thanks,

weiguo


From: BESS [bess-bounces@ietf.org] on beha= lf of Henderickx, Wim (Wim) [wim.henderickx@alcatel-lucent.com]
Sent: Thursday, November 12, 2015 22:33
To: bess@ietf.org
Subject: [bess] draft-hao-bess-inter-nvo3-vpn-optionc

I don=92t s= upport the adoption of this draft as a WG. There is a major flaw in this pr= oposal:
Basically t= he encapsulation of VXLAN/NVGRE is incompatible with MPLS IP-VPNs. VXLAN/NV= GRE contains a MAC address and IP-VPNs don=92t. The draft does not talk abo= ut any of this and introduces a lot of complexity for nothing.

If we want = to describe a model C VPN interconnect with a IP fabric in a DC I recommend= to do an informational RFC that describes this using VXLAN-GPE, MPLSoGRE o= r MPLSoUDP encapsulation and retain the E2E MPLS label we defined in RFC4364.
--_000_DD5FC8DE455C3348B94340C0AB5517334F8D8127nkgeml501mbschi_-- From nobody Thu Nov 12 21:00:14 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id E01241B4007 for ; Thu, 12 Nov 2015 21:00:12 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.91 X-Spam-Level: X-Spam-Status: No, score=-6.91 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_HI=-5, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id xkIld_5XNyf8 for ; Thu, 12 Nov 2015 21:00:10 -0800 (PST) Received: from smtp-fr.alcatel-lucent.com (fr-hpgre-esg-01.alcatel-lucent.com [135.245.210.22]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id A571F1B4001 for ; Thu, 12 Nov 2015 21:00:09 -0800 (PST) Received: from fr711usmtp1.zeu.alcatel-lucent.com (unknown [135.239.2.122]) by Websense Email Security Gateway with ESMTPS id 6B0932A0E1DB5; Fri, 13 Nov 2015 05:00:06 +0000 (GMT) Received: from FR711WXCHHUB01.zeu.alcatel-lucent.com (fr711wxchhub01.zeu.alcatel-lucent.com [135.239.2.111]) by fr711usmtp1.zeu.alcatel-lucent.com (GMO) with ESMTP id tAD5072U005829 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=FAIL); Fri, 13 Nov 2015 06:00:07 +0100 Received: from FR711WXCHMBA07.zeu.alcatel-lucent.com ([169.254.3.17]) by FR711WXCHHUB01.zeu.alcatel-lucent.com ([135.239.2.111]) with mapi id 14.03.0195.001; Fri, 13 Nov 2015 06:00:07 +0100 From: "Henderickx, Wim (Wim)" To: Haoweiguo Thread-Topic: draft-hao-bess-inter-nvo3-vpn-optionc Thread-Index: AQHRHVckJGngb/4i3EuknzuoW5FiTp6ZJ3nrgAA+LAA= Date: Fri, 13 Nov 2015 05:00:06 +0000 Message-ID: References: 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--_000_EFCC769D6A4B4EAB9282A31CCDD0FDB5alcatellucentcom_-- From nobody Fri Nov 13 00:58:01 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 9C1371A21AE for ; Fri, 13 Nov 2015 00:58:00 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -0.893 X-Spam-Level: X-Spam-Status: No, score=-0.893 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, FREEMAIL_FROM=0.001, HELO_EQ_FR=0.35, HTML_MESSAGE=0.001, SPF_SOFTFAIL=0.665, T_RP_MATCHES_RCVD=-0.01] autolearn=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id FO2UukoiE_UH for ; Fri, 13 Nov 2015 00:57:58 -0800 (PST) Received: from p-mail2.rd.orange.com (p-mail2.rd.orange.com [161.106.1.3]) by ietfa.amsl.com (Postfix) with ESMTP id E8C951A21A5 for ; Fri, 13 Nov 2015 00:57:57 -0800 (PST) Received: from p-mail2.rd.orange.com (localhost.localdomain [127.0.0.1]) by localhost (Postfix) with SMTP id 53668E300B2; Fri, 13 Nov 2015 09:57:57 +0100 (CET) Received: from FTRDCH01.rd.francetelecom.fr (unknown [10.194.32.11]) by p-mail2.rd.orange.com (Postfix) with ESMTP id D0A4DE300B1; Fri, 13 Nov 2015 09:57:56 +0100 (CET) Received: from [10.193.71.12] (10.193.71.12) by FTRDCH01.rd.francetelecom.fr (10.194.32.11) with Microsoft SMTP Server id 14.3.224.2; Fri, 13 Nov 2015 09:57:56 +0100 To: "Henderickx, Wim (Wim)" References: <1214F6D7-7E00-4C95-82C4-349393828A92@alcatel-lucent.com> <11888_1447341897_5644AF49_11888_5397_1_5644AF48.6000407@orange.com> <31144DC0-E53C-4890-AD51-29A49C45F6DB@alcatel-lucent.com> <26952_1447346782_5644C25E_26952_9119_1_5644C25D.8070806@orange.com> <94504E5E-B0D8-41DC-8967-E860E46F4C92@alcatel-lucent.com> From: Thomas Morin Organization: Orange Message-ID: <5645A614.4010806@orange.com> Date: Fri, 13 Nov 2015 09:57:56 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: <94504E5E-B0D8-41DC-8967-E860E46F4C92@alcatel-lucent.com> Content-Type: multipart/alternative; boundary="------------080608030700020000060607" Archived-At: Cc: "bess@ietf.org" Subject: Re: [bess] draft-hao-bess-inter-nvo3-vpn-optionc X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 13 Nov 2015 08:58:00 -0000 --------------080608030700020000060607 Content-Type: text/plain; charset="utf-8"; format=flowed Content-Transfer-Encoding: 7bit Hi Wim, I agree on the analysis that this proposal is restricted to implementations that supports the chosen encap with non-IANA ports (which may be hard to achieve for instance on hardware implementations, as you suggest), or to context where managing multiple IPs would be operationally viable. However, it does not seem obvious to me how the alternative you propose [relying on 3-label option C with an MPLS/MPLS/(UDP|GRE) encap] addresses the issue of whether the encap behavior is supported or not (e.g. your typical ToR chipset possibly may not support this kind of encap, and even software-based switches may not be ready to support that today). My take is that having different options to adapt to various implementations constraints we may have would have value. (+ one question below on VXLAN...) -Thomas 2015-11-12, Henderickx, Wim (Wim): >> On VXLAN/NVGRE, do you challenge the fact that they would be used >> with a dummy MAC address that would be replaced by the right MAC by a >> sender based on an ARP request when needed ? > > Is the above the issue you had in mind about VXLAN and NVGRE ? > > WH> yes I you don't mind me asking : why do you challenge that ? --------------080608030700020000060607 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: 8bit
Hi Wim,

I agree on the analysis that this proposal is restricted to implementations that supports the chosen encap with non-IANA ports (which may be hard to achieve for instance on hardware implementations, as you suggest), or to context where managing multiple IPs would be operationally viable.  

However, it does not seem obvious to me how the alternative you propose [relying on 3-label option C with an MPLS/MPLS/(UDP|GRE) encap] addresses the issue of whether the encap behavior is supported or not (e.g. your typical ToR chipset possibly may not support this kind of encap,  and even software-based switches may not be ready to support that today).

My take is that having different options to adapt to various implementations constraints we may have would have value.

(+ one question below on VXLAN...)

-Thomas


2015-11-12, Henderickx, Wim (Wim):
On VXLAN/NVGRE, do you challenge the fact that they would be used with a dummy MAC address that would be replaced by the right MAC by a sender based on an ARP request when needed ?

Is the above the issue you had in mind about VXLAN and NVGRE ?

WH> yes

I you don't mind me asking : why do you challenge that ?


--------------080608030700020000060607-- From nobody Fri Nov 13 06:11:36 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 1DAD61A88C9 for ; Fri, 13 Nov 2015 06:11:35 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.902 X-Spam-Level: X-Spam-Status: No, score=-1.902 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 9LqPmXHtDWVC for ; Fri, 13 Nov 2015 06:11:33 -0800 (PST) Received: from na01-bl2-obe.outbound.protection.outlook.com (mail-bl2on0112.outbound.protection.outlook.com [65.55.169.112]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id D50C81A88B3 for ; Fri, 13 Nov 2015 06:11:32 -0800 (PST) Received: from SN1PR0501MB1709.namprd05.prod.outlook.com (10.163.130.155) by SN1PR0501MB2014.namprd05.prod.outlook.com (10.163.227.11) with Microsoft SMTP Server (TLS) id 15.1.318.15; Fri, 13 Nov 2015 14:11:30 +0000 Received: from SN1PR0501MB1709.namprd05.prod.outlook.com ([10.163.130.155]) by SN1PR0501MB1709.namprd05.prod.outlook.com ([10.163.130.155]) with mapi id 15.01.0318.003; Fri, 13 Nov 2015 14:11:30 +0000 From: John E Drake To: "EXT - thomas.morin@orange.com" , "bess@ietf.org" Thread-Topic: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' Thread-Index: AQHRG9ETUP92oWRS5Ua5Lf7oEtipsJ6WArmC//+WFoCAALpxu4AAjp7ggAExyYCAAGclgIAABWeAgAF+THA= Date: Fri, 13 Nov 2015 14:11:30 +0000 Message-ID: References: <486973F4-725A-4510-969F-AD9BC3D34B54@alcatel-lucent.com> <1F70DC8A-2BB5-40C7-89CA-03F6E0784B8B@alcatel-lucent.com> <4550_1447317570_56445042_4550_858_1_56445041.3030507@orange.com> 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Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-OriginatorOrg: juniper.net X-MS-Exchange-CrossTenant-originalarrivaltime: 13 Nov 2015 14:11:30.5880 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: bea78b3c-4cdb-4130-854a-1d193232e5f4 X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN1PR0501MB2014 Archived-At: Cc: "Ali Sajassi \(sajassi\)" , Eric Rosen Subject: Re: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 13 Nov 2015 14:11:35 -0000 VGhvbWFzLA0KDQpJIHNwb2tlIHdpdGggRXJpYyBhbmQgQWxpIGFuZCB3ZSB3b3VsZCBsaWtlIHRv IGNoYW5nZSBib3RoIHRoZSBvdmVybGF5IGRyYWZ0IGFuZCB0aGUgdHVubmVsIGVuY2FwcyBkcmFm 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LCBhbmQgZXhpc3QgaW4NCj4gYW55IGNvbnRleHQgd2hlcmUgZGlmZmVyZW50IGtpbmRzIG9mIE1Q TFMoL3gpIGVuY2FwcyBjYW4gYmUgbWl4ZWQgKEUtVlBODQo+IG5vbi1vdmVybGF5LCBJUCBWUE5z KSwgd2hpY2ggaXMgYWRkcmVzc2VkIGJ5IEVyaWMncyBkcmFmdC4NCj4gDQo+IEJlc3QsDQo+IA0K PiAtVGhvbWFzDQoNCg== From nobody Fri Nov 13 06:48:47 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 89EEA1A908A for ; Fri, 13 Nov 2015 06:48:45 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.91 X-Spam-Level: X-Spam-Status: No, score=-6.91 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_HI=-5, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ZLEqC7MF0HWC for ; Fri, 13 Nov 2015 06:48:43 -0800 (PST) Received: from 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(amavisd-new, port 10024) with ESMTP id bhoKj6sblNJm; Fri, 13 Nov 2015 07:31:31 -0800 (PST) Received: from p-mail1.rd.orange.com (p-mail1.rd.orange.com [161.106.1.2]) by ietfa.amsl.com (Postfix) with ESMTP id 3844A1A8AE6; Fri, 13 Nov 2015 07:31:31 -0800 (PST) Received: from p-mail1.rd.orange.com (localhost.localdomain [127.0.0.1]) by localhost (Postfix) with SMTP id 34462410268; Fri, 13 Nov 2015 16:31:30 +0100 (CET) Received: from FTRDCH01.rd.francetelecom.fr (unknown [10.194.32.11]) by p-mail1.rd.orange.com (Postfix) with ESMTP id C0DB9410266; Fri, 13 Nov 2015 16:31:15 +0100 (CET) Received: from [10.193.71.12] (10.193.71.12) by FTRDCH01.rd.francetelecom.fr (10.194.32.11) with Microsoft SMTP Server id 14.3.224.2; Fri, 13 Nov 2015 16:31:15 +0100 From: Thomas Morin Organization: Orange To: BESS Message-ID: <56460243.4060404@orange.com> Date: Fri, 13 Nov 2015 16:31:15 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8"; format=flowed Content-Transfer-Encoding: 7bit Archived-At: Cc: IDR Chairs , BESS Chairs Subject: [bess] IDR accepting post-WGLC comments on draft-ietf-idr-rtc-no-rt X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 13 Nov 2015 15:31:33 -0000 Hi working group, draft-ietf-idr-rtc-no-rt has passed working group last call in IDR on June 22th and the shepherd noticed that considering that specs being worked on in BESS are the primary use case, comments from BESS working group could have been solicited. Hence, IDR chairs have proposed to accept comments on these specs until November 27th to let BESS contributors the opportunity to comment. Please send any comment you have on the idr mailing list. Best, -Thomas/Martin From nobody Fri Nov 13 08:10:42 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 0BBAE1A8F4E for ; Fri, 13 Nov 2015 08:10:41 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.21 X-Spam-Level: X-Spam-Status: No, score=-4.21 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id snt8tBemUcAZ for ; Fri, 13 Nov 2015 08:10:38 -0800 (PST) Received: from lhrrgout.huawei.com (lhrrgout.huawei.com [194.213.3.17]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 85CD01A8F42 for ; Fri, 13 Nov 2015 08:10:37 -0800 (PST) Received: from 172.18.7.190 (EHLO lhreml405-hub.china.huawei.com) ([172.18.7.190]) by lhrrg02-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id CAH36454; Fri, 13 Nov 2015 16:10:34 +0000 (GMT) Received: from DFWEML703-CHM.china.huawei.com (10.193.5.130) by lhreml405-hub.china.huawei.com (10.201.5.242) with Microsoft SMTP Server (TLS) id 14.3.235.1; Fri, 13 Nov 2015 16:10:33 +0000 Received: from DFWEML701-CHM.china.huawei.com ([10.193.5.50]) by dfweml703-chm ([10.193.5.130]) with mapi id 14.03.0235.001; Fri, 13 Nov 2015 08:10:26 -0800 From: Lucy yong To: "Henderickx, Wim (Wim)" , Haoweiguo Thread-Topic: draft-hao-bess-inter-nvo3-vpn-optionc Thread-Index: AQHRHVckJGngb/4i3EuknzuoW5FiTp6ZJ3nrgAA+LACAAJ+AcA== Date: Fri, 13 Nov 2015 16:10:25 +0000 Message-ID: <2691CE0099834E4A9C5044EEC662BB9D5720C748@dfweml701-chm> References: <1214F6D7-7E00-4C95-82C4-349393828A92@alcatel-lucent.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.47.158.222] Content-Type: multipart/alternative; boundary="_000_2691CE0099834E4A9C5044EEC662BB9D5720C748dfweml701chm_" MIME-Version: 1.0 X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020203.56460B7A.0274, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=0.0.0.0, so=2013-06-18 04:22:30, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: e8c1d7eec0e2442d56988a6c47018fe3 Archived-At: Cc: "bess@ietf.org" Subject: Re: [bess] draft-hao-bess-inter-nvo3-vpn-optionc X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 13 Nov 2015 16:10:41 -0000 --_000_2691CE0099834E4A9C5044EEC662BB9D5720C748dfweml701chm_ Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 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(unknown [10.114.1.183]) by omfeda07.si.francetelecom.fr (ESMTP service) with ESMTP id 9946C158077; Fri, 13 Nov 2015 17:36:55 +0100 (CET) Received: from [10.193.71.12] (10.197.38.5) by PEXCVZYH02.corporate.adroot.infra.ftgroup (10.114.1.183) with Microsoft SMTP Server (TLS) id 14.3.248.2; Fri, 13 Nov 2015 17:36:55 +0100 To: "Henderickx, Wim (Wim)" References: <1214F6D7-7E00-4C95-82C4-349393828A92@alcatel-lucent.com> <11888_1447341897_5644AF49_11888_5397_1_5644AF48.6000407@orange.com> <31144DC0-E53C-4890-AD51-29A49C45F6DB@alcatel-lucent.com> <26952_1447346782_5644C25E_26952_9119_1_5644C25D.8070806@orange.com> <94504E5E-B0D8-41DC-8967-E860E46F4C92@alcatel-lucent.com> <5645A614.4010806@orange.com> From: Organization: Orange Message-ID: <28696_1447432615_564611A7_28696_1036_1_564611A6.2010509@orange.com> Date: Fri, 13 Nov 2015 17:36:54 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/alternative; boundary="------------060001000403050704000802" X-Originating-IP: [10.197.38.5] X-PMX-Version: 6.2.1.2478543, Antispam-Engine: 2.7.2.2107409, Antispam-Data: 2015.10.16.122716 Archived-At: Cc: "bess@ietf.org" Subject: Re: [bess] draft-hao-bess-inter-nvo3-vpn-optionc X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 13 Nov 2015 16:37:01 -0000 --------------060001000403050704000802 Content-Type: text/plain; charset="utf-8"; format=flowed Content-Transfer-Encoding: 7bit Hi Wim, 2015-11-13, Henderickx, Wim (Wim): > Thomas, we need a solution that is implementable and will scale in > control/data-plane. As such the solution I outline is standardised > today and does not need new extensions in control/data-plane. Hence > informational draft and can be implemented if there is market demand. The above argument would fully make sense to me if support MPLS/MPLS/(UDP or GRE) was common place in ToRs or vswitches. > With respect to MAC you need to address both directions and does not > make sense to manage this if it is not required/doe snot add value. On VXLAN and the Ethernet header: it looks to me that addressing both direction is just a matter of documenting in the draft (if not already there) what is the expected behavior for VXLAN/NVGRE. But VXLAN and NVGRE are not the only encaps proposed in the specs anyway. Compared to 3-label option C, my understanding is that the added-value is to not require the support of an MPLS/MPLS/(UDP or GRE) encap in ToRs and vswitches. The right trade-off to make may in fact depend on whether you prefer: (a) a new dataplane stitching behavior on DC ASBRs (the behavior specified in this draft) or (b) an evolution of the encaps on the vswitches and ToRs to support MPLS/MPLS/(UDP or GRE) Note that the 3-label option C approach with an MPLS/MPLS/(UDP or GRE) encap also requires the introduction of a control plane in the DC (possibly in an 'SDN' controller) to learn and advertise the middle MPLS label. Whether one consider that the best path to a working solution may also depend on the context. Best, -Thomas > > From: Thomas Morin > > Organization: Orange > Date: Friday 13 November 2015 at 09:57 > To: Wim Henderickx > > Cc: "bess@ietf.org " > > Subject: Re: [bess] draft-hao-bess-inter-nvo3-vpn-optionc > > Hi Wim, > > I agree on the analysis that this proposal is restricted to > implementations that supports the chosen encap with non-IANA ports > (which may be hard to achieve for instance on hardware > implementations, as you suggest), or to context where managing > multiple IPs would be operationally viable. > > However, it does not seem obvious to me how the alternative you > propose [relying on 3-label option C with an MPLS/MPLS/(UDP|GRE) > encap] addresses the issue of whether the encap behavior is supported > or not (e.g. your typical ToR chipset possibly may not support this > kind of encap, and even software-based switches may not be ready to > support that today). > > My take is that having different options to adapt to various > implementations constraints we may have would have value. > > (+ one question below on VXLAN...) > > -Thomas > > > 2015-11-12, Henderickx, Wim (Wim): >>> On VXLAN/NVGRE, do you challenge the fact that they would be used >>> with a dummy MAC address that would be replaced by the right MAC by >>> a sender based on an ARP request when needed ? >> >> Is the above the issue you had in mind about VXLAN and NVGRE ? >> >> WH> yes > > I you don't mind me asking : why do you challenge that ? > > _________________________________________________________________________________________________________________________ Ce message et ses pieces jointes peuvent contenir des informations confidentielles ou privilegiees et ne doivent donc pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu ce message par erreur, veuillez le signaler a l'expediteur et le detruire ainsi que les pieces jointes. Les messages electroniques etant susceptibles d'alteration, Orange decline toute responsabilite si ce message a ete altere, deforme ou falsifie. Merci. This message and its attachments may contain confidential or privileged information that may be protected by law; they should not be distributed, used or copied without authorisation. If you have received this email in error, please notify the sender and delete this message and its attachments. As emails may be altered, Orange is not liable for messages that have been modified, changed or falsified. Thank you. --------------060001000403050704000802 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: 8bit
Hi Wim,

2015-11-13, Henderickx, Wim (Wim):
Thomas, we need a solution that is implementable and will scale in control/data-plane. As such the solution I outline is standardised today and does not need new extensions in control/data-plane. Hence informational draft and can be implemented if there is market demand.

The above argument would fully make sense to me if support MPLS/MPLS/(UDP or GRE) was common place in ToRs or vswitches.

With respect to MAC you need to address both directions and does not make sense to manage this if it is not required/doe snot add value.

On VXLAN and the Ethernet header: it looks to me that addressing both direction is just a matter of documenting in the draft (if not already there) what is the expected behavior for VXLAN/NVGRE. But VXLAN and NVGRE are not the only encaps proposed in the specs anyway.

Compared to 3-label option C, my understanding is that the added-value is to not require the support of an MPLS/MPLS/(UDP or GRE) encap in ToRs and vswitches.   

The right trade-off to make may in fact depend on whether you prefer:
(a) a new dataplane stitching behavior on DC ASBRs (the behavior specified in this draft)
or (b) an evolution of the encaps on the vswitches and ToRs to support MPLS/MPLS/(UDP or GRE)

Note that the 3-label option C approach with an MPLS/MPLS/(UDP or GRE) encap also requires the introduction of a control plane in the DC (possibly in an 'SDN' controller) to learn and advertise the middle MPLS label.  Whether one consider that the best path to a working solution may also depend on the context.

Best,
 
-Thomas



From: Thomas Morin <thomas.morin@orange.com>
Organization: Orange
Date: Friday 13 November 2015 at 09:57
To: Wim Henderickx <wim.henderickx@alcatel-lucent.com>
Cc: "bess@ietf.org" <bess@ietf.org>
Subject: Re: [bess] draft-hao-bess-inter-nvo3-vpn-optionc

Hi Wim,

I agree on the analysis that this proposal is restricted to implementations that supports the chosen encap with non-IANA ports (which may be hard to achieve for instance on hardware implementations, as you suggest), or to context where managing multiple IPs would be operationally viable.  

However, it does not seem obvious to me how the alternative you propose [relying on 3-label option C with an MPLS/MPLS/(UDP|GRE) encap] addresses the issue of whether the encap behavior is supported or not (e.g. your typical ToR chipset possibly may not support this kind of encap,  and even software-based switches may not be ready to support that today).

My take is that having different options to adapt to various implementations constraints we may have would have value.

(+ one question below on VXLAN...)

-Thomas


2015-11-12, Henderickx, Wim (Wim):
On VXLAN/NVGRE, do you challenge the fact that they would be used with a dummy MAC address that would be replaced by the right MAC by a sender based on an ARP request when needed ?

Is the above the issue you had in mind about VXLAN and NVGRE ?

WH> yes

I you don't mind me asking : why do you challenge that ?



_________________________________________________________________________________________________________________________

Ce message et ses pieces jointes peuvent contenir des informations confidentielles ou privilegiees et ne doivent donc
pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu ce message par erreur, veuillez le signaler
a l'expediteur et le detruire ainsi que les pieces jointes. Les messages electroniques etant susceptibles d'alteration,
Orange decline toute responsabilite si ce message a ete altere, deforme ou falsifie. Merci.

This message and its attachments may contain confidential or privileged information that may be protected by law;
they should not be distributed, used or copied without authorisation.
If you have received this email in error, please notify the sender and delete this message and its attachments.
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--------------060001000403050704000802-- From nobody Fri Nov 13 08:46:07 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 822931B2A54; Fri, 13 Nov 2015 08:46:05 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.599 X-Spam-Level: X-Spam-Status: No, score=-2.599 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-0.001, UNPARSEABLE_RELAY=0.001] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 4X5jMb56TqLN; Fri, 13 Nov 2015 08:46:04 -0800 (PST) Received: from relais-inet.francetelecom.com (relais-ias243.francetelecom.com [80.12.204.243]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id C33241B29E7; Fri, 13 Nov 2015 08:46:03 -0800 (PST) Received: from omfeda05.si.francetelecom.fr (unknown [xx.xx.xx.198]) by omfeda12.si.francetelecom.fr (ESMTP service) with ESMTP id 5997E3B452B; Fri, 13 Nov 2015 17:46:02 +0100 (CET) Received: from Exchangemail-eme1.itn.ftgroup (unknown [10.114.1.183]) by omfeda05.si.francetelecom.fr (ESMTP service) with ESMTP id 0828818004F; Fri, 13 Nov 2015 17:46:02 +0100 (CET) Received: from [10.193.71.12] (10.197.38.3) by PEXCVZYH02.corporate.adroot.infra.ftgroup (10.114.1.183) with Microsoft SMTP Server (TLS) id 14.3.248.2; Fri, 13 Nov 2015 17:46:01 +0100 To: John E Drake , "bess@ietf.org" References: <486973F4-725A-4510-969F-AD9BC3D34B54@alcatel-lucent.com> <1F70DC8A-2BB5-40C7-89CA-03F6E0784B8B@alcatel-lucent.com> <4550_1447317570_56445042_4550_858_1_56445041.3030507@orange.com> <5644AB4F.6030708@orange.com> From: Organization: Orange Message-ID: <29407_1447433162_564613CA_29407_1693_1_564613C9.6080900@orange.com> Date: Fri, 13 Nov 2015 17:46:01 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset="utf-8"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [10.197.38.3] X-PMX-Version: 6.2.1.2478543, Antispam-Engine: 2.7.2.2107409, Antispam-Data: 2015.10.16.122716 Archived-At: Cc: IDR , "Ali Sajassi \(sajassi\)" , Eric Rosen Subject: Re: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' and draft-ietf-idr-tunnel-encaps-00 X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 13 Nov 2015 16:46:05 -0000 John, (Cc'ing IDR.) 2015-11-13, John E Drake: > > I spoke with Eric and Ali and we would like to change both the > overlay draft and the tunnel encaps drafts as follows. > > For the overlay draft, replace this text in section 5.1.3: > > "If the BGP Encapsulation extended community is not present, then > thedefault MPLS encapsulation or a statically configured encapsulation is > assumed." > > With the following: > > "Note that the MPLS encapsulation tunnel type is needed in order to > distinguish between an advertising node that only supports non-MPLS > encapsulations and one that supports MPLS and non-MPLS > encapsulations. An advertising node that only supports MPLS > encapsulation does not need to advertise any encapsulation tunnel > types; i.e., if the BGP Encapsulation extended community is not > present, then either MPLS encapsulation or a statically configured > encapsulation is assumed." Having more text to explain things in the overlay draft does not hurt. > > For the tunnel encaps draft, replace this text in section 5: > > "If the Tunnel Encapsulation attribute contains several TLVs (i.e., > ifit specifies several tunnels), router R may choose any one of those > tunnels, based upon local policy. If any of tunnels' TLVs contain the > Color sub-TLV and/or the Protocol Type sub-TLV defined in [RFC5512], the > choice of tunnel may be influenced by these sub-TLVs." > > With the following: > > "If the Tunnel Encapsulation attribute contains several TLVs (i.e., > ifit specifies several tunnels), router R may choose any one of those > tunnels, based upon local policy. If any of tunnels' TLVs contain the > Color sub-TLV and/or the Protocol Type sub-TLV defined in [RFC5512], the > choice of tunnel may be influenced by these sub-TLVs. Note that if none > of the TLVs specifies the MPLS tunnel type, a Label Switched Path SHOULD > NOT be used unless none of the TLVs specifies a feasible tunnel." I think that the above will technically work. *However* it would be a pity to *not* have the very useful clear-text explanation of the reason for the 'MPLS' type (what you propose to add above in the overlay draft) in draft-ietf-idr-tunnel-encaps-00... why provide the smooth explanation for only one of the specs to which this 'MPLS' type applies ? > > We hope this is satisfactory. Close, but not quite there yet :) Best, -Thomas > >> -----Original Message----- >> From: Thomas Morin [mailto:thomas.morin@orange.com] >> Sent: Thursday, November 12, 2015 10:08 AM >> To: John E Drake; bess@ietf.org >> Cc: Eric Rosen >> Subject: Re: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' >> >> Hi John, >> >> 2015-11-12, John E Drake: >>> >>> Why do you think it should be documented in Eric's draft rather than in the >> EVPN Overlay draft? >> >> The issue applies beyond the context of E-VPN overlay specs, and exist in >> any context where different kinds of MPLS(/x) encaps can be mixed (E-VPN >> non-overlay, IP VPNs), which is addressed by Eric's draft. >> >> Best, >> >> -Thomas > _________________________________________________________________________________________________________________________ Ce message et ses pieces jointes peuvent contenir des informations confidentielles ou privilegiees et ne doivent donc pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu ce message par erreur, veuillez le signaler a l'expediteur et le detruire ainsi que les pieces jointes. Les messages electroniques etant susceptibles d'alteration, Orange decline toute responsabilite si ce message a ete altere, deforme ou falsifie. Merci. This message and its attachments may contain confidential or privileged information that may be protected by law; they should not be distributed, used or copied without authorisation. If you have received this email in error, please notify the sender and delete this message and its attachments. As emails may be altered, Orange is not liable for messages that have been modified, changed or falsified. Thank you. From nobody Fri Nov 13 09:12:20 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 1AA521B2CCD for ; Fri, 13 Nov 2015 09:12:19 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.21 X-Spam-Level: X-Spam-Status: No, score=-4.21 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id CtSW8N5UWTKG for ; Fri, 13 Nov 2015 09:12:15 -0800 (PST) Received: from lhrrgout.huawei.com (lhrrgout.huawei.com [194.213.3.17]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 052291B2CCB for ; Fri, 13 Nov 2015 09:12:14 -0800 (PST) Received: from 172.18.7.190 (EHLO lhreml402-hub.china.huawei.com) ([172.18.7.190]) by lhrrg01-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id CEB35956; Fri, 13 Nov 2015 17:12:12 +0000 (GMT) Received: from DFWEML703-CHM.china.huawei.com (10.193.5.130) by lhreml402-hub.china.huawei.com (10.201.5.241) with Microsoft SMTP Server (TLS) id 14.3.235.1; Fri, 13 Nov 2015 17:12:10 +0000 Received: from DFWEML701-CHM.china.huawei.com ([10.193.5.50]) by dfweml703-chm ([10.193.5.130]) with mapi id 14.03.0235.001; Fri, 13 Nov 2015 09:12:08 -0800 From: Lucy yong To: "thomas.morin@orange.com" , "Henderickx, Wim (Wim)" Thread-Topic: [bess] draft-hao-bess-inter-nvo3-vpn-optionc Thread-Index: AQHRHjGBJGngb/4i3EuknzuoW5FiTp6aMGTQ Date: Fri, 13 Nov 2015 17:12:07 +0000 Message-ID: <2691CE0099834E4A9C5044EEC662BB9D5720C7FD@dfweml701-chm> References: <1214F6D7-7E00-4C95-82C4-349393828A92@alcatel-lucent.com> <11888_1447341897_5644AF49_11888_5397_1_5644AF48.6000407@orange.com> <31144DC0-E53C-4890-AD51-29A49C45F6DB@alcatel-lucent.com> <26952_1447346782_5644C25E_26952_9119_1_5644C25D.8070806@orange.com> <94504E5E-B0D8-41DC-8967-E860E46F4C92@alcatel-lucent.com> <5645A614.4010806@orange.com> <28696_1447432615_564611A7_28696_1036_1_564611A6.2010509@orange.com> In-Reply-To: <28696_1447432615_564611A7_28696_1036_1_564611A6.2010509@orange.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.47.158.222] Content-Type: multipart/alternative; boundary="_000_2691CE0099834E4A9C5044EEC662BB9D5720C7FDdfweml701chm_" MIME-Version: 1.0 X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020205.564619EC.022B, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=0.0.0.0, so=2013-06-18 04:22:30, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: ceb60f37a8fd0834926d760c5c14f917 Archived-At: Cc: "bess@ietf.org" Subject: Re: [bess] draft-hao-bess-inter-nvo3-vpn-optionc X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 13 Nov 2015 17:12:19 -0000 --_000_2691CE0099834E4A9C5044EEC662BB9D5720C7FDdfweml701chm_ Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 RnVsbHkgYWdyZWUgVG9tYXPigJlzIHBvaW50cyAoYmVsb3cpLg0KDQpMdWN5DQoNCkZyb206IEJF U1MgW21haWx0bzpiZXNzLWJvdW5jZXNAaWV0Zi5vcmddIE9uIEJlaGFsZiBPZiB0aG9tYXMubW9y aW5Ab3JhbmdlLmNvbQ0KU2VudDogRnJpZGF5LCBOb3ZlbWJlciAxMywgMjAxNSAxMDozNyBBTQ0K VG86IEhlbmRlcmlja3gsIFdpbSAoV2ltKQ0KQ2M6IGJlc3NAaWV0Zi5vcmcNClN1YmplY3Q6IFJl OiBbYmVzc10gZHJhZnQtaGFvLWJlc3MtaW50ZXItbnZvMy12cG4tb3B0aW9uYw0KDQpIaSBXaW0s DQoNCjIwMTUtMTEtMTMsIEhlbmRlcmlja3gsIFdpbSAoV2ltKToNClRob21hcywgd2UgbmVlZCBh IHNvbHV0aW9uIHRoYXQgaXMgaW1wbGVtZW50YWJsZSBhbmQgd2lsbCBzY2FsZSBpbiBjb250cm9s L2RhdGEtcGxhbmUuIEFzIHN1Y2ggdGhlIHNvbHV0aW9uIEkgb3V0bGluZSBpcyBzdGFuZGFyZGlz 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--_000_2691CE0099834E4A9C5044EEC662BB9D5720C7FDdfweml701chm_-- From nobody Fri Nov 13 10:12:38 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 815FE1B29B1; Fri, 13 Nov 2015 10:12:36 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.211 X-Spam-Level: X-Spam-Status: No, score=-4.211 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ihW-qNboR1Zq; Fri, 13 Nov 2015 10:12:33 -0800 (PST) Received: from lhrrgout.huawei.com (lhrrgout.huawei.com [194.213.3.17]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 3CF751B29A3; Fri, 13 Nov 2015 10:12:33 -0800 (PST) Received: from 172.18.7.190 (EHLO lhreml406-hub.china.huawei.com) ([172.18.7.190]) by lhrrg01-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id CEB40372; Fri, 13 Nov 2015 18:12:30 +0000 (GMT) Received: from DFWEML705-CHM.china.huawei.com (10.193.5.142) by lhreml406-hub.china.huawei.com (10.201.5.243) with Microsoft SMTP Server (TLS) id 14.3.235.1; Fri, 13 Nov 2015 18:12:30 +0000 Received: from DFWEML701-CHM.china.huawei.com ([10.193.5.50]) by dfweml705-chm ([10.193.5.142]) with mapi id 14.03.0235.001; Fri, 13 Nov 2015 10:12:24 -0800 From: Lucy yong To: "thomas.morin@orange.com" , John E Drake , "bess@ietf.org" Thread-Topic: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' and draft-ietf-idr-tunnel-encaps-00 Thread-Index: AQHRHjLk+EPbBLnwbEaYyccCDDNBvp6aOngg Date: Fri, 13 Nov 2015 18:12:24 +0000 Message-ID: <2691CE0099834E4A9C5044EEC662BB9D5720C851@dfweml701-chm> References: <486973F4-725A-4510-969F-AD9BC3D34B54@alcatel-lucent.com> <1F70DC8A-2BB5-40C7-89CA-03F6E0784B8B@alcatel-lucent.com> <4550_1447317570_56445042_4550_858_1_56445041.3030507@orange.com> <5644AB4F.6030708@orange.com> <29407_1447433162_564613CA_29407_1693_1_564613C9.6080900@orange.com> In-Reply-To: <29407_1447433162_564613CA_29407_1693_1_564613C9.6080900@orange.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.47.158.222] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020201.5646280F.0236, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=0.0.0.0, so=2013-06-18 04:22:30, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: 65907c852024d00aba22084c61861fbc Archived-At: Cc: IDR , "Ali Sajassi \(sajassi\)" , Eric Rosen Subject: Re: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' and draft-ietf-idr-tunnel-encaps-00 X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 13 Nov 2015 18:12:36 -0000 Hi John, Since the tunnel encap draft goes with encap tunnel attribute and there was= no deployment of RFC5512, IMO, we should deprecate encapsulation extended = community to keep a consistent method.=20 Thus, should the overlay draft states if BGP tunnel encapsulate attribute i= s not present, .... Regards, Lucy=20 -----Original Message----- From: BESS [mailto:bess-bounces@ietf.org] On Behalf Of thomas.morin@orange.= com Sent: Friday, November 13, 2015 10:46 AM To: John E Drake; bess@ietf.org Cc: IDR; Ali Sajassi (sajassi); Eric Rosen Subject: Re: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' an= d draft-ietf-idr-tunnel-encaps-00 John, (Cc'ing IDR.) 2015-11-13, John E Drake: > > I spoke with Eric and Ali and we would like to change both the overlay =20 > draft and the tunnel encaps drafts as follows. > > For the overlay draft, replace this text in section 5.1.3: > > "If the BGP Encapsulation extended community is not present, then=20 > thedefault MPLS encapsulation or a statically configured encapsulation=20 > is > assumed." > > With the following: > > "Note that the MPLS encapsulation tunnel type is needed in order to=20 > distinguish between an advertising node that only supports non-MPLS=20 > encapsulations and one that supports MPLS and non-MPLS encapsulations.=20 > An advertising node that only supports MPLS encapsulation does not=20 > need to advertise any encapsulation tunnel types; i.e., if the BGP=20 > Encapsulation extended community is not present, then either MPLS=20 > encapsulation or a statically configured encapsulation is assumed." Having more text to explain things in the overlay draft does not hurt. > > For the tunnel encaps draft, replace this text in section 5: > > "If the Tunnel Encapsulation attribute contains several TLVs (i.e.,=20 > ifit specifies several tunnels), router R may choose any one of those > tunnels, based upon local policy. If any of tunnels' TLVs contain the >= Color sub-TLV and/or the Protocol Type sub-TLV defined in [RFC5512], the > choice of tunnel may be influenced by these sub-TLVs." > > With the following: > > "If the Tunnel Encapsulation attribute contains several TLVs (i.e.,=20 > ifit specifies several tunnels), router R may choose any one of those=20 > tunnels, based upon local policy. If any of tunnels' TLVs contain the=20 > Color sub-TLV and/or the Protocol Type sub-TLV defined in [RFC5512],=20 > the choice of tunnel may be influenced by these sub-TLVs. Note that if=20 > none of the TLVs specifies the MPLS tunnel type, a Label Switched Path=20 > SHOULD NOT be used unless none of the TLVs specifies a feasible tunnel." I think that the above will technically work. *However* it would be a pity to *not* have the very useful clear-text expla= nation of the reason for the 'MPLS' type (what you propose to add above in = the overlay draft) in draft-ietf-idr-tunnel-encaps-00... why provide the s= mooth explanation for only one of the specs to which this 'MPLS' type appli= es ? > > We hope this is satisfactory. Close, but not quite there yet :) Best, -Thomas > >> -----Original Message----- >> From: Thomas Morin [mailto:thomas.morin@orange.com] >> Sent: Thursday, November 12, 2015 10:08 AM >> To: John E Drake; bess@ietf.org >> Cc: Eric Rosen >> Subject: Re: [bess] One question about 'draft-ietf-bess-evpn-overlay-02' >> >> Hi John, >> >> 2015-11-12, John E Drake: >>> >>> Why do you think it should be documented in Eric's draft rather than=20 >>> in the >> EVPN Overlay draft? >> >> The issue applies beyond the context of E-VPN overlay specs, and=20 >> exist in any context where different kinds of MPLS(/x) encaps can be=20 >> mixed (E-VPN non-overlay, IP VPNs), which is addressed by Eric's draft. >> >> Best, >> >> -Thomas > ___________________________________________________________________________= ______________________________________________ Ce message et ses pieces jointes peuvent contenir des informations confiden= tielles ou privilegiees et ne doivent donc pas etre diffuses, exploites ou = copies sans autorisation. Si vous avez recu ce message par erreur, veuillez= le signaler a l'expediteur et le detruire ainsi que les pieces jointes. Le= s messages electroniques etant susceptibles d'alteration, Orange decline to= ute responsabilite si ce message a ete altere, deforme ou falsifie. Merci. This message and its attachments may contain confidential or privileged inf= ormation that may be protected by law; they should not be distributed, used= or copied without authorisation. If you have received this email in error, please notify the sender and dele= te this message and its attachments. As emails may be altered, Orange is not liable for messages that have been = modified, changed or falsified. Thank you. _______________________________________________ BESS mailing list BESS@ietf.org https://www.ietf.org/mailman/listinfo/bess From nobody Fri Nov 13 10:45:32 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 4F9F51B2B4F for ; Fri, 13 Nov 2015 10:45:31 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.91 X-Spam-Level: X-Spam-Status: No, score=-6.91 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_HI=-5, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id lr7_CIllRNzX for ; Fri, 13 Nov 2015 10:45:25 -0800 (PST) Received: from smtp-fr.alcatel-lucent.com (fr-hpgre-esg-01.alcatel-lucent.com [135.245.210.22]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 61A671B2B79 for ; Fri, 13 Nov 2015 10:45:20 -0800 (PST) Received: from fr711usmtp1.zeu.alcatel-lucent.com (unknown [135.239.2.122]) by Websense Email Security Gateway with ESMTPS id 4569C755AA648; Fri, 13 Nov 2015 18:45:15 +0000 (GMT) Received: from FR712WXCHHUB03.zeu.alcatel-lucent.com (fr712wxchhub03.zeu.alcatel-lucent.com [135.239.2.74]) by fr711usmtp1.zeu.alcatel-lucent.com (GMO) with ESMTP id tADIjIGp007327 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=FAIL); Fri, 13 Nov 2015 19:45:18 +0100 Received: from FR711WXCHMBA07.zeu.alcatel-lucent.com ([169.254.3.17]) by FR712WXCHHUB03.zeu.alcatel-lucent.com ([135.239.2.74]) with mapi id 14.03.0195.001; Fri, 13 Nov 2015 19:45:18 +0100 From: "Henderickx, Wim (Wim)" To: Lucy yong , Haoweiguo Thread-Topic: draft-hao-bess-inter-nvo3-vpn-optionc Thread-Index: AQHRHVckJGngb/4i3EuknzuoW5FiTp6ZJ3nrgAA+LACAAJ+AcIAARwwA Date: Fri, 13 Nov 2015 18:45:16 +0000 Message-ID: References: <1214F6D7-7E00-4C95-82C4-349393828A92@alcatel-lucent.com> <2691CE0099834E4A9C5044EEC662BB9D5720C748@dfweml701-chm> In-Reply-To: <2691CE0099834E4A9C5044EEC662BB9D5720C748@dfweml701-chm> Accept-Language: nl-BE, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/0.0.0.151008 x-originating-ip: [135.239.27.39] Content-Type: multipart/alternative; boundary="_000_A6AC72A0FA164AA6A1DA35FA475B85C0alcatellucentcom_" MIME-Version: 1.0 Archived-At: Cc: "bess@ietf.org" Subject: Re: [bess] draft-hao-bess-inter-nvo3-vpn-optionc X-BeenThere: bess@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: BGP-Enabled ServiceS working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 13 Nov 2015 18:45:31 -0000 --_000_A6AC72A0FA164AA6A1DA35FA475B85C0alcatellucentcom_ Content-Type: text/plain; charset="utf-8" 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ZGl2Pg0KPC9zcGFuPg0KPC9ib2R5Pg0KPC9odG1sPg0K --_000_A6AC72A0FA164AA6A1DA35FA475B85C0alcatellucentcom_-- From nobody Fri Nov 13 10:59:56 2015 Return-Path: X-Original-To: bess@ietfa.amsl.com Delivered-To: bess@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id E17DD1B2FDB for ; Fri, 13 Nov 2015 10:59:54 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.91 X-Spam-Level: X-Spam-Status: No, score=-6.91 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_HI=-5, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id xvDcDVbg0YOy for ; Fri, 13 Nov 2015 10:59:52 -0800 (PST) Received: from smtp-fr.alcatel-lucent.com (fr-hpida-esg-02.alcatel-lucent.com [135.245.210.21]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 019151B2FD0 for ; Fri, 13 Nov 2015 10:59:51 -0800 (PST) Received: from fr712usmtp2.zeu.alcatel-lucent.com (unknown [135.239.2.42]) by Websense Email Security Gateway with ESMTPS id A99A8A6784186; Fri, 13 Nov 2015 18:59:45 +0000 (GMT) Received: from FR712WXCHHUB03.zeu.alcatel-lucent.com (fr712wxchhub03.zeu.alcatel-lucent.com [135.239.2.74]) by fr712usmtp2.zeu.alcatel-lucent.com (GMO) with ESMTP id tADIxnxl005788 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=FAIL); Fri, 13 Nov 2015 19:59:49 +0100 Received: from FR711WXCHMBA07.zeu.alcatel-lucent.com ([169.254.3.17]) by FR712WXCHHUB03.zeu.alcatel-lucent.com ([135.239.2.74]) with mapi id 14.03.0195.001; Fri, 13 Nov 2015 19:59:49 +0100 From: "Henderickx, Wim (Wim)" To: "thomas.morin@orange.com" Thread-Topic: [bess] draft-hao-bess-inter-nvo3-vpn-optionc Thread-Index: AQHRHVckJGngb/4i3EuknzuoW5FiTp6YcSAAgAAUTQCAAAJygIAASIkAgADG7ACAAHKwgIAADYwAgAA4r4A= Date: Fri, 13 Nov 2015 18:59:47 +0000 Message-ID: <61AE87C2-D215-4135-94A3-6C648FAA614E@alcatel-lucent.com> References: <1214F6D7-7E00-4C95-82C4-349393828A92@alcatel-lucent.com> <11888_1447341897_5644AF49_11888_5397_1_5644AF48.6000407@orange.com> <31144DC0-E53C-4890-AD51-29A49C45F6DB@alcatel-lucent.com> <26952_1447346782_5644C25E_26952_9119_1_5644C25D.8070806@orange.com> <94504E5E-B0D8-41DC-8967-E860E46F4C92@alcatel-lucent.com> <5645A614.4010806@orange.com> <28696_1447432615_564611A7_28696_1036_1_564611A6.2010509@orange.com> In-Reply-To: <28696_1447432615_564611A7_28696_1036_1_564611A6.2010509@orange.com> Accept-Language: nl-BE, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/0.0.0.151008 x-originating-ip: [135.239.27.38] Content-Type: multipart/alternative; boundary="_000_61AE87C2D215413594A36C648FAA614Ealcatellucentcom_" MIME-Version: 1.0 Archived-At: Cc: "bess@ietf.org" Subject: Re: [bess] draft-hao-bess-inter-nvo3-vpn-optionc X-BeenThere: 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from FR711WXCHHUB02.zeu.alcatel-lucent.com (fr711wxchhub02.zeu.alcatel-lucent.com [135.239.2.112]) by fr712usmtp2.zeu.alcatel-lucent.com (GMO) with ESMTP id tADJNCVB008066 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=FAIL); Fri, 13 Nov 2015 20:23:27 +0100 Received: from FR711WXCHMBA07.zeu.alcatel-lucent.com ([169.254.3.17]) by FR711WXCHHUB02.zeu.alcatel-lucent.com ([135.239.2.112]) with mapi id 14.03.0195.001; Fri, 13 Nov 2015 20:21:53 +0100 From: "Henderickx, Wim (Wim)" To: Lucy yong , Haoweiguo Thread-Topic: draft-hao-bess-inter-nvo3-vpn-optionc Thread-Index: AQHRHVckJGngb/4i3EuknzuoW5FiTp6ZJ3nrgAA+LACAAJ+AcIAARwwAgAAHUbCAAALpAA== Date: Fri, 13 Nov 2015 19:21:52 +0000 Message-ID: <246BCAFA-94E6-412D-875E-AD8479B907C4@alcatel-lucent.com> References: <1214F6D7-7E00-4C95-82C4-349393828A92@alcatel-lucent.com> <2691CE0099834E4A9C5044EEC662BB9D5720C748@dfweml701-chm> <2691CE0099834E4A9C5044EEC662BB9D5720C8B1@dfweml701-chm> In-Reply-To: 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