{
  "draft": "draft-ietf-teas-assoc-corouted-bidir-frr-07",
  "doc_id": "RFC8537",
  "title": "Updates to the Fast Reroute Procedures for Co-routed Associated Bidirectional Label Switched Paths (LSPs)",
  "authors": [
    "R. Gandhi, Ed.",
    "H. Shah",
    "J. Whittaker"
  ],
  "format": [
    "TEXT",
    "HTML"
  ],
  "page_count": "16",
  "pub_status": "PROPOSED STANDARD",
  "status": "PROPOSED STANDARD",
  "source": "Traffic Engineering Architecture and Signaling",
  "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.",
  "pub_date": "February 2019",
  "keywords": [
    "RSVP-TE LSP"
  ],
  "obsoletes": [],
  "obsoleted_by": [],
  "updates": [
    "RFC4090",
    "RFC7551"
  ],
  "updated_by": [],
  "see_also": [],
  "doi": "10.17487/RFC8537",
  "errata_url": null
}