A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : PW Endpoint Fast Failure Protection
Author(s) : Yimin Shen
Rahul Aggarwal
Wim Henderickx
Filename : draft-shen-pwe3-endpoint-fast-protection-04.txt
Pages : 28
Date : 2013-07-01
Abstract:
This document specifies a fast mechanism for protecting pseudowires
(PWs) against egress endpoint failures, including egress attachment
circuit failure, egress PE failure, multi-segment PW terminating PE
failure, and multi-segment PW switching PE failure. Designed on the
basis of multi-homed CE, PW redundancy, upstream label assignment and
context specific label switching, the mechanism enables local repair
to be performed by a router upstream adjacent to a failure. In
particular, the router can restore PW traffic in the order of tens of
milliseconds, by transmitting the traffic to a protector through a
pre-established bypass tunnel. Therefore, the mechanism can reduce
traffic loss before global repair reacts to the failure and the
network converges on the topology changes due to the failure.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-shen-pwe3-endpoint-fast-protection
There's also a htmlized version available at:
http://tools.ietf.org/html/draft-shen-pwe3-endpoint-fast-protection-04
A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-shen-pwe3-endpoint-fast-protection-04
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
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