Fast Reroute Procedures For Associated Bidirectional Label Switched Paths (LSPs)

Document Type Replaced Internet-Draft (individual)
Last updated 2017-03-10
Replaces draft-gandhi-shah-teas-assoc-corouted-bidir
Replaced by draft-ietf-teas-assoc-corouted-bidir-frr
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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 describes Fast Reroute (FRR) procedures for both single-sided and double-sided provisioned associated bidirectional LSPs. The FRR procedures are applicable to co-routed and non co-routed LSPs. For co-routed LSPs, the FRR procedures can ensure that traffic flows on co-routed paths in the forward and reverse directions after a failure event.


Rakesh Gandhi (
Himanshu Shah (
Jeremy Whittaker (

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