@misc{rfc8537, series = {Request for Comments}, number = 8537, howpublished = {RFC 8537}, publisher = {RFC Editor}, doi = {10.17487/RFC8537}, url = {https://www.rfc-editor.org/info/rfc8537}, author = {Rakesh Gandhi and Himanshu C. Shah and Jeremy Whittaker}, title = {{Updates to the Fast Reroute Procedures for Co-routed Associated Bidirectional Label Switched Paths (LSPs)}}, pagetotal = 16, year = 2019, month = feb, abstract = {Resource Reservation Protocol (RSVP) association signaling can be used to bind two unidirectional Label Switched Paths (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 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 fast reroute 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.}, }