A new Internet-Draft is available from the on-line Internet-Drafts directories.
Title : LDP extensions for Explicit Pseudowire to transport LSP mapping
Author(s) : M. Chen, et al
Filename : draft-cao-pwe3-mpls-tp-pw-over-bidir-lsp-02.txt
Pages : 10
Date : 2011-03-14
A bidirectional Pseudowire (PW) service currently uses two
unidirectional PWs each carried over a unidirectional LSP. Each end
point of a PW or segment of multi-segment PW (MS-PW) independently
selects the LSP to use to carry the PW for which it is the head end.
Some transport services may require that bidirectional PW traffic
follows the same paths through the network in both directions.
Therefore, PWs may be required to use LSP with congruent paths.
Bidirectional LSPs or co-routed associated unidirectional LSPs allow
this service to be provided.
This document specifies some extensions to LDP that allow both ends
of a PW (or segment of a MS-PW) to select and bind to the same
bidirectional LSP or use unidirectional LSPs with congruent paths.
A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-cao-pwe3-mpls-tp-pw-over-bidir-lsp-02.txt
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