{
  "draft": "draft-ietf-mpls-ri-rsvp-frr-22",
  "doc_id": "RFC9705",
  "title": "Refresh-Interval Independent RSVP Fast Reroute Facility Protection",
  "authors": [
    "C. Ramachandran",
    "T. Saad",
    "D. Pacella"
  ],
  "format": [
    "XML",
    "TEXT",
    "HTML",
    "PDF"
  ],
  "page_count": "24",
  "pub_status": "PROPOSED STANDARD",
  "status": "PROPOSED STANDARD",
  "source": "Multiprotocol Label Switching",
  "abstract": "The RSVP-TE Fast Reroute (FRR) extensions specified in RFC 4090 define two local repair techniques to reroute Label Switched Path (LSP) traffic over pre-established backup tunnels.  Facility backup method allows one or more LSPs traversing a connected link or node to be protected using a bypass tunnel.  The many-to-one nature of local repair technique is attractive from a scalability point of view.  This document enumerates facility backup procedures in RFC 4090 that rely on refresh timeout, hence, making facility backup method refresh-interval dependent.  The RSVP-TE extensions defined in this document will enhance the facility backup protection mechanism by making the corresponding procedures refresh-interval independent, and hence, compatible with the Refresh-Interval Independent RSVP (RI-RSVP) capability specified in RFC 8370.  Hence, this document updates RFC 4090 in order to support the RI-RSVP capability specified in RFC 8370.",
  "pub_date": "March 2025",
  "keywords": [
    "ri-rsvp-frr",
    "RI-RSVP-FRR"
  ],
  "obsoletes": [],
  "obsoleted_by": [],
  "updates": [
    "RFC4090"
  ],
  "updated_by": [],
  "see_also": [],
  "doi": "10.17487/RFC9705",
  "errata_url": null
}