A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Label Sharing for Fast PE Protection
Authors : Mingui Zhang
Peng Zhou
Russ White
Filename : draft-zhang-l3vpn-label-sharing-02.txt
Pages : 16
Date : 2014-06-17
Abstract:
This document describes a method to be used by VPN Service Providers
to provide multi-homed CEs with fast protection of egress PEs. Egress
PEs in a redundant group always share the same label in distribution
of VPN routes of a VRF. A virtual Next Hop (vNH) in the IGP/MPLS
backbone is created as the common end of LSP tunnels which would
otherwise terminate at each egress PE. Primary and backup LSP tunnels
ended at the vNH are set up by MPLS on basis of existing IGP FRR
mechanisms. If the primary egress PE fails, the backup egress PE can
recognize the "shared" VPN route label carried by the data packets.
Therefore, the failure affected data packets can be smoothly rerouted
to the backup PE for delivery without changing their VPN route label.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-zhang-l3vpn-label-sharing/
There's also a htmlized version available at:
http://tools.ietf.org/html/draft-zhang-l3vpn-label-sharing-02
A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-zhang-l3vpn-label-sharing-02
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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