RE: Node Req: Issue 6: Support for RFC 5121: IP version 6 over WiMAX

[<teemu.savolainen at nokia.com>]

Brian,

I think it's best to view Ethernet CS and IPv6 CS as different foos,
even if both are for WiMAX. Thus they are not two solutions for the same
thing.

So RFC5121 is needed by hosts supporting IPv6 CS foo and
draft-ietf-16ng-ip-over-ethernet-over-802.16 for host supporting
Ethernet CS foo.

Best regards,

	Teemu

>-----Original Message-----
>From: ext Brian E Carpenter [mailto:brian.e.carpenter at gmail.com] 
>Sent: 17 November, 2008 14:07
>To: Savolainen Teemu (Nokia-D-MSW/Tampere)
>Cc: soohongp at gmail.com; Loughney John (Nokia-D/MtView); ipv6 at ietf.org
>Subject: Re: Node Req: Issue 6: Support for RFC 5121: IP 
>version 6 over WiMAX
>
>Teemu,
>
>Well, I'd like to see a definitive statement of what the 
>consensus of 16ng is on this point, and then IMHO the node 
>requirements should exactly reflect that consensus.
>
>   Brian
>
>On 2008-11-18 06:44, teemu.savolainen at nokia.com wrote:
>> Hi Brian,
>> 
>> My recollection on this is that Ethernet CS is intended for CPE 
>> ("wireless DSL") use cases and IP CSes more for handhelds. In this 
>> regard IP CSes correspond very closely on 3GPP IPv4/IPv6 PDP 
>contexts.
>> 
>> Furthermore, Ethernet CS is optional feature while support 
>for IP CSes 
>> is mandatory.
>> 
>> In future I'm sure there will be a lot more devices using IPv6 over 
>> IPv6
>> CS/IPv6 PDP context/IPv6 EPS bearers than PPP.
>> 
>> Best regards,
>> 
>> 	Teemu
>> 
>>> -----Original Message-----
>>> From: ipv6-bounces at ietf.org [mailto:ipv6-bounces at ietf.org] 
>On Behalf 
>>> Of ext Brian E Carpenter
>>> Sent: 16 November, 2008 21:13
>>> To: Daniel Park
>>> Cc: Loughney John (Nokia-D/MtView); ipv6 at ietf.org
>>> Subject: Re: Node Req: Issue 6: Support for RFC 5121: IP version 6 
>>> over WiMAX
>>>
>>> Daniel,
>>>
>>> On 2008-11-14 22:19, Daniel Park wrote:
>>>> John,
>>>>
>>>> I would make a minor change according to the valuable 
>comments from 
>>>> the WiMAX expert:
>>>>
>>>> There are two ways to transfer IPv6 over WiMAX:
>>>> - IPv6 over WiMAX using IPCS: RFC5121
>>>> - IPv6 over Ethernet carried over WiMAX: AD Evaluation (ID Status)
>>> Where does your suggested preference for the IPv6 CS come from?
>>> Does 16ng have a consensus on this preference?
>>>
>>> Since I can't imagine anyone *not* implementing the Ethernet CS, 
>>> doesn't this make extra work for all implementors, compared with 
>>> preferring the Ethernet CS for both IP versions?
>>>
>>>    Brian
>>>
>>>> So.
>>>>
>>>> 4.X IP version 6 over WiMAX - RFC 5121
>>>>
>>>> Nodes supporting IPv6 via IPCS over WiMAX networks MUST implement
>>>>
>>>> "Transmission of IPv6 via the IPv6 Convergence Sublayer over IEEE
>>>> 802.16 Networks" [RFC 5121].
>>>>
>>>>
>>>>
>>>>
>>>> Thanks,
>>>>
>>>> Daniel
>>>>
>>>>
>>>>
>>>>
>>>> On Fri, Nov 14, 2008 at 6:34 AM, <john.loughney at nokia.com> wrote:
>>>>
>>>>> Daniel Park sent this issue in:
>>>>>
>>>>> I'd request one more requirement for this bis. It is about 16ng 
>>>>> deliverable for IPv6 transmission over IPv6CS networks as 
>RFC 5121.
>>>>> Due to Convergence Sublayer characteristics of WiMAX 
>networks, the 
>>>>> below requirement must be included in the Node Requirement.
>>> (For example:
>>>>> globally unique prefix must be assigned to the WiMAX node, DAD 
>>>>> considerations, ND features, and etc described in RFC 5121)
>>>>>
>>>>> 4.X IP version 6 over WiMAX - RFC 5121
>>>>>
>>>>> Nodes supporting IPv6 over WiMAX networks MUST implement
>>>>>
>>>>> "Transmission of IPv6 via the IPv6 Convergence Sublayer over IEEE
>>>>> 802.16 Networks" [RFC 5121].
>>>>>
>>>>> --> I think this seems like a reasonable thing to add.
>>>>>
>>>>> John
>>>>> 
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