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[Pals] Fwd: I-D Action: draft-ietf-pals-endpoint-fast-protection-05.txt

Stewart Bryant <stewart.bryant@gmail.com> Wed, 04 January 2017 10:27 UTC

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From: Stewart Bryant <stewart.bryant@gmail.com>
To: "pals@ietf.org" <pals@ietf.org>, "pals-chairs@tools.ietf.org" <pals-chairs@tools.ietf.org>
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Cc: "BRUNGARD, DEBORAH A" <db3546@att.com>
Subject: [Pals] Fwd: I-D Action: draft-ietf-pals-endpoint-fast-protection-05.txt
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The attention of the working group is directed to sections 6.4.1 through 
6.4.4 which
describe operation with an IPv4 and IPv6 control plane. The IPv6 text 
was added
as a result of the IESG review. There were a number of design approaches 
that could
have been used to add IPv6 support, and so it was decided to give the 
PALS WG
a few days to review the chosen approach. Any comments please speak up.

Best regards

Stewart



-------- Forwarded Message --------
Subject: 	I-D Action: draft-ietf-pals-endpoint-fast-protection-05.txt
Date: 	Tue, 03 Jan 2017 11:52:14 -0800
From: 	internet-drafts@ietf.org
Reply-To: 	internet-drafts@ietf.org
To: 	i-d-announce@ietf.org
CC: 	pals@ietf.org



A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Pseudowire And LDP-enabled Services of the IETF.

         Title           : PW Endpoint Fast Failure Protection
         Authors         : Yimin Shen
                           Rahul Aggarwal
                           Wim Henderickx
                           Yuanlong Jiang
	Filename        : draft-ietf-pals-endpoint-fast-protection-05.txt
	Pages           : 41
	Date            : 2017-01-03

Abstract:
    This document specifies a fast mechanism for protecting pseudowires
    (PWs) transported by IP/MPLS tunnels against egress endpoint
    failures, including egress AC (attachment circuit) failure, egress PE
    (provider edge) failure, multi-segment PW terminating PE failure, and
    multi-segment PW switching PE failure.  Operating on the basis of
    multi-homed CE (customer edge), redundant PWs, upstream label
    assignment and context specific label switching, the mechanism
    enables local repair to be performed by the router upstream adjacent
    to a failure.  The router can restore a PW in the order of tens of
    milliseconds, by rerouting traffic around the failure to a protector
    through a pre-established bypass tunnel.  Therefore, the mechanism
    can be used to 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-ietf-pals-endpoint-fast-protection/

There's also a htmlized version available at:
https://tools.ietf.org/html/draft-ietf-pals-endpoint-fast-protection-05

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-pals-endpoint-fast-protection-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/

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