RSVP-TE Summary Fast Reroute Extensions for LSP Tunnels
draft-ietf-mpls-summary-frr-rsvpte-09

Document Type Active Internet-Draft (mpls WG)
Last updated 2020-04-03 (latest revision 2020-02-26)
Replaces draft-mtaillon-mpls-summary-frr-rsvpte
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MPLS Working Group                                            M. Taillon
Internet-Draft                                       Cisco Systems, Inc.
Updates: 4090 (if approved)                                 T. Saad, Ed.
Intended status: Standards Track                        Juniper Networks
Expires: August 29, 2020                                       R. Gandhi
                                                     Cisco Systems, Inc.
                                                             A. Deshmukh
                                                        Juniper Networks
                                                                 M. Jork
                                                          128 Technology
                                                               V. Beeram
                                                        Juniper Networks
                                                       February 26, 2020

        RSVP-TE Summary Fast Reroute Extensions for LSP Tunnels
                 draft-ietf-mpls-summary-frr-rsvpte-09

Abstract

   This document updates RFC 4090 for the Resource Reservation Protocol
   (RSVP) Traffic-Engineering (TE) procedures defined for facility
   backup protection.  The updates include extensions that reduce the
   amount of signaling and processing that occurs during Fast Reroute
   (FRR), and subsequently, improves scalability when undergoing FRR
   convergence after a link or node failure.  These extensions allow the
   RSVP message exchange between the Point of Local Repair (PLR) and the
   Merge Point (MP) nodes to be independent of the number of protected
   Label Switched Paths (LSPs) traversing between them when facility
   bypass FRR protection is used.  The signaling extensions are fully
   backwards compatible with nodes that do not support them.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
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   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on August 29, 2020.

Taillon, et al.          Expires August 29, 2020                [Page 1]
Internet-Draft             RSVP-TE Summary FRR             February 2020

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   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Conventions Used in This Document . . . . . . . . . . . . . .   4
     2.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   4
     2.2.  Acronyms and Abbreviations  . . . . . . . . . . . . . . .   4
   3.  Extensions for Summary FRR Signaling  . . . . . . . . . . . .   5
     3.1.  B-SFRR-Ready Extended ASSOCIATION Object  . . . . . . . .   6
       3.1.1.  IPv4 B-SFRR-Ready Extended ASSOCIATION ID . . . . . .   7
       3.1.2.  IPv6 B-SFRR-Ready Extended ASSOCIATION ID . . . . . .   8
       3.1.3.  Processing Rules for B-SFRR-Ready Extended
               ASSOCIATION Object  . . . . . . . . . . . . . . . . .   9
     3.2.  B-SFRR-Active Extended ASSOCIATION Object . . . . . . . .  10
       3.2.1.  IPv4 B-SFRR-Active Extended ASSOCIATION ID  . . . . .  11
       3.2.2.  IPv6 B-SFRR-Active Extended ASSOCIATION ID  . . . . .  12
     3.3.  Signaling Procedures Prior to Failure . . . . . . . . . .  14
       3.3.1.  PLR Signaling Procedure . . . . . . . . . . . . . . .  15
       3.3.2.  MP Signaling Procedure  . . . . . . . . . . . . . . .  15
     3.4.  Signaling Procedures Post Failure . . . . . . . . . . . .  16
       3.4.1.  PLR Signaling Procedure . . . . . . . . . . . . . . .  16
       3.4.2.  MP Signaling Procedure  . . . . . . . . . . . . . . .  17
     3.5.  Refreshing Summary FRR Active LSPs  . . . . . . . . . . .  18
   4.  Backwards Compatibility . . . . . . . . . . . . . . . . . . .  18
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .  18
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