A New Internet-Draft is available from the on-line Internet-Drafts
directories.
This draft is a work item of the Pseudowire Emulation Edge to Edge Working Group of the IETF.
Title : LDP extensions for AII reachability
Author(s) : L. Martini, S. DeLord, F. JOUNAY, P. Niger, M. Aissaoui, M. Bocci
Filename : draft-ietf-pwe3-ldp-aii-reachability-02.txt
Pages : 10
Date : 2009-5-28
The dynamic End-to-End Multisegment pseudowire setup requires PEs to
maintain a pseudowire routing table when using FEC129. There is a
requirement to automatically advertise Attachment Individual
Identifiers to enable the pseudowire routing tables to be populated.
Two mechanisms already exist, a BGP reachability information
distribution mechanism and an IGP based one. Here we define a third
solution relying on LDP. It allows for automatic advertisement of the
Attachment Individual Identifier prefixes provisioned on a T-PE when
this node does not run BGP or IGP. The mechanism described here runs
on the T-LDP (Targeted LDP) session between the T-PE and S-PE, and is
intended to complement existing PW routing mechanisms using BGP or
OSPF.
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