Re: [CCAMP] OTN control drafts: draft-ceccarelli-ccamp-gmpls-g709-lmp-test-01.txt

Hi,

From Paragraph 3.2 of the draft:

“

3.2. Verify Transport Mechanism

. . . . .

Capability of transmitting Test messages using ODUk Trail Trace

Identifier (TTI) overhead with frame length of 64 bytes. See ITU

G.709 Section 15.2 and Section 15.8 for the structure and

definition. The Test message is sent according to [RFC4204].

- 0x04 GCC0: Test Message over the GCC0

Capability of transmitting Test messages using the OTUk Overhead

General Communications Channel (GCC0). See ITU G.709 Section 15.7

for the structure and definition. The Test message is sent

according to [RFC4204] using bit-oriented HDLC framing format

[RFC1662].

- 0x08 GCC1/2: Test Message over the GCC1/2

Capability of transmitting Test messages using the ODUk Overhead

General Communications Channels (GCC1/2). See ITU G.709 Section

15.8 for the structure and definition. The Test message is sent

according to [RFC4204] using bit-oriented HDLC framing format

[RFC1662].

“

In the draft there is no distinguishing between transmitting the test message over GCC1 or GCC2 while the other endpoint of the link may be capable of terminating one of them but not both. Thus I would suggest to allocate separate bit for each.

Best Regards,

     Yechiel Rosengarten
     System Engineering
     ECI Telecom Ltd
     30 Hasivim St. Petach Tikva 49517 Israel

     e-mail: yechiel.rosengarten at ecitele.com

From: ccamp-bounces at ietf.org [mailto:ccamp-bounces at ietf.org] On Behalf Of Fatai Zhang
Sent: Friday, October 23, 2009 11:32 AM
To: CCAMP
Subject: [CCAMP] OTN control drafts

Hi CCAMPers,

You know that there are lots of interests from both a technical and organizational standpoint (e.g., ITU-T SG15/Q12,Q14, IETF CCAMP) on OTN control, since draft-zhang-ccamp-gmpls-evolving-g709-00.txt was presented in IETF 75th meeting.

You also know that [G.709 V3] including ODU0, ODU4, ODUflex... was consented by ITU-T SG15 in this October. Therefore, in order to control and manage the OTN networks efficiently, OTN control is really important for the industry.

Up to now, we have five drafts about OTN control:

(1) draft-zhang-ccamp-gmpls-g709-framework-00.txt

(2) draft-zhang-ccamp-gmpls-evolving-g709-03.txt

(3) draft-ceccarelli-ccamp-gmpls-ospf-g709-00.txt

(4) draft-ceccarelli-ccamp-gmpls-g709-lmp-test-01.txt

(5) draft-zhang-ccamp-gmpls-g709-lmp-discovery-02.txt

To promote better understanding or the discussions in Hiroshima meeting, we'd appreciate your review and comments.

Thanks

Authors of these drafts