RSVP-TE Summary Fast Reroute Extensions for LSP Tunnels
draft-ietf-mpls-summary-frr-rsvpte-06

Document Type Active Internet-Draft (mpls WG)
Last updated 2019-11-17
Replaces draft-mtaillon-mpls-summary-frr-rsvpte
Stream IETF
Intended RFC status Proposed Standard
Formats plain text pdf htmlized bibtex
Reviews
Stream WG state Submitted to IESG for Publication
Document shepherd Nicolai Leymann
Shepherd write-up Show (last changed 2019-10-23)
IESG IESG state Publication Requested
Consensus Boilerplate Yes
Telechat date
Responsible AD Deborah Brungard
Send notices to Nicolai Leymann <n.leymann@telekom.de>
MPLS Working Group                                            M. Taillon
Internet-Draft                                       Cisco Systems, Inc.
Intended status: Standards Track                            T. Saad, Ed.
Expires: May 21, 2020                                   Juniper Networks
                                                               R. Gandhi
                                                     Cisco Systems, Inc.
                                                             A. Deshmukh
                                                        Juniper Networks
                                                                 M. Jork
                                                          128 Technology
                                                               V. Beeram
                                                        Juniper Networks
                                                       November 18, 2019

        RSVP-TE Summary Fast Reroute Extensions for LSP Tunnels
                 draft-ietf-mpls-summary-frr-rsvpte-06

Abstract

   This document defines Resource Reservation Protocol (RSVP) Traffic-
   Engineering (TE) signaling extensions that reduce the amount of RSVP
   signaling required for Fast Reroute (FRR) procedures and subsequently
   improve the scalability of the RSVP-TE signaling when undergoing FRR
   convergence after a link or node failure.  Such extensions allow the
   RSVP message exchange between the Point of Local Repair (PLR) and the
   Merge Point (MP) 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
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on May 21, 2020.

Taillon, et al.           Expires May 21, 2020                  [Page 1]
Internet-Draft             RSVP-TE Summary FRR             November 2019

Copyright Notice

   Copyright (c) 2019 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

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  . . . . . . . . . . . .   4
     3.1.  B-SFRR-Ready Extended ASSOCIATION Object  . . . . . . . .   6
       3.1.1.  IPv4 B-SFRR-Ready IPv4 Extended ASSOCIATION ID  . . .   6
       3.1.2.  IPv6 B-SFRR-Ready IPv6 Extended ASSOCIATION ID  . . .   7
     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 . . . . . . . . . .  13
       3.3.1.  PLR Signaling Procedure . . . . . . . . . . . . . . .  14
       3.3.2.  MP Signaling Procedure  . . . . . . . . . . . . . . .  14
     3.4.  Signaling Procedures Post Failure . . . . . . . . . . . .  15
       3.4.1.  PLR Signaling Procedure . . . . . . . . . . . . . . .  15
       3.4.2.  MP Signaling Procedure  . . . . . . . . . . . . . . .  16
     3.5.  Refreshing Summary FRR Active LSPs  . . . . . . . . . . .  16
   4.  Backwards Compatibility . . . . . . . . . . . . . . . . . . .  17
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .  17
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  17
   7.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  17
   8.  Contributors  . . . . . . . . . . . . . . . . . . . . . . . .  17
Show full document text