Subject: [PWE3] New revision of "PW Endpoint Fast Failure Protection" draft

From: Yimin Shen <[email-masked]>
Date: Wed, 11 Jul 2012 11:11:11 -0400

Hi,

We have recently updated the "PW Endpoint Fast Failure Protection" draft below based on the comments that we received during IETF 83 in Paris. Once again, thanks for all those constructive comments.
 
http://tools.ietf.org/html/draft-shen-pwe3-endpoint-fast-protection-02

The major changes in this revision include:

[1] Assumption of generic PSN transport layer. This makes the mechanism applicable to PWs that are transported by RSVP-TE tunnels, LDP tunnels, or IP-based tunnels. 

[2] Clarification of the relationship between local repair (proposed by the draft), global repair, and control protocol convergence. While emphasizing the advantage of local repair from the perspective of traffic restoration time, the draft also describes the importance of working in conjunction with global repair and control protocol convergence after a failure, to move traffic permanently to a fully functional PW.

[3] The description of "context identifier" has been re-written for an easier understanding of how it facilitates primary/bypass tunnel establishment and context-specific label switching.

Therefore, we'd like to hear your further comments and suggestions on this draft.

Regards,

-Yimin Shen
Juniper Networks