[Teas] I-D Action: draft-ietf-teas-assoc-corouted-bidir-frr-05.txt

internet-drafts@ietf.org Wed, 08 August 2018 19:26 UTC

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Subject: [Teas] I-D Action: draft-ietf-teas-assoc-corouted-bidir-frr-05.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Traffic Engineering Architecture and Signaling WG of the IETF.

        Title           : Updates to the Fast Reroute Procedures for Co-routed Associated Bidirectional Label Switched Paths (LSPs)
        Authors         : Rakesh Gandhi
                          Himanshu Shah
                          Jeremy Whittaker
	Filename        : draft-ietf-teas-assoc-corouted-bidir-frr-05.txt
	Pages           : 16
	Date            : 2018-08-08

   Resource Reservation Protocol (RSVP) association signaling can be
   used to bind two unidirectional LSPs into an associated bidirectional
   LSP.  When an associated bidirectional LSP is co-routed, the reverse
   LSP follows the same path as its forward LSP.  This document updates
   the Fast Reroute (FRR) procedures defined in RFC 4090 to support both
   single-sided and double-sided provisioned associated bidirectional
   LSPs.  This document also updates the procedure for associating two
   reverse LSPs defined in RFC 7551 to support co-routed bidirectional
   LSPs.  The FRR procedures can ensure that for the co-routed LSPs,
   traffic flows on co-routed paths in the forward and reverse
   directions after a failure event.

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