GMPLS Signaling Extensions for Shared Mesh Protection
draft-ietf-teas-gmpls-signaling-smp-01

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Last updated 2019-07-05
Replaces draft-he-teas-gmpls-signaling-smp
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TEAS Working Group                                                 J. He
Internet-Draft                                                   I. Busi
Intended status: Standards Track                     Huawei Technologies
Expires: January 6, 2020                                         J. Ryoo
                                                                 B. Yoon
                                                                    ETRI
                                                                 P. Park
                                                                      KT
                                                            July 5, 2019

         GMPLS Signaling Extensions for Shared Mesh Protection
                 draft-ietf-teas-gmpls-signaling-smp-01

Abstract

   ITU-T Recommendation G.808.3 [G808.3] defines the generic aspects of
   a Shared Mesh Protection (SMP) mechanism, where the difference
   between SMP and Shared Mesh Restoration (SMR) is also identified.
   ITU-T Recommendation G.873.3 [G873.3] defines the protection
   switching operation and associated protocol for SMP at the Optical
   Data Unit (ODU) layer.  RFC 7412 [RFC7412] provides requirements for
   any mechanism that would be used to implement SMP in a Multi-Protocol
   Label Switching - Transport Profile (MPLS-TP) network.

   This document updates RFC 4872 [RFC4872] to provide the extensions to
   the Generalized Multi-Protocol Label Switching (GMPLS) signaling to
   support the control of the shared mesh protection.

Status of This Memo

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

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   This Internet-Draft will expire on January 6, 2020.

He, et al.               Expires January 6, 2020                [Page 1]
Internet-Draft           GMPLS Extension for SMP               July 2019

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Conventions Used in This Document . . . . . . . . . . . . . .   3
   3.  SMP Definition  . . . . . . . . . . . . . . . . . . . . . . .   3
   4.  GMPLS Signaling Extension for SMP . . . . . . . . . . . . . .   4
     4.1.  Identifiers . . . . . . . . . . . . . . . . . . . . . . .   5
     4.2.  Signaling Primary LSPs  . . . . . . . . . . . . . . . . .   6
     4.3.  Signaling Secondary LSPs  . . . . . . . . . . . . . . . .   6
     4.4.  SMP APS Configuration . . . . . . . . . . . . . . . . . .   8
   5.  Updates to PROTECTION Object  . . . . . . . . . . . . . . . .   8
     5.1.  New Protection Type . . . . . . . . . . . . . . . . . . .   8
     5.2.  Other Updates . . . . . . . . . . . . . . . . . . . . . .   8
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   9
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .   9
   8.  Contributor . . . . . . . . . . . . . . . . . . . . . . . . .   9
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   9
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .   9
     9.2.  Informative References  . . . . . . . . . . . . . . . . .  10
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  10

1.  Introduction

   RFC 4872 [RFC4872] defines extension of Resource Reservation Protocol
   - Traffic Engineering (RSVP-TE) to support Shared Mesh Restoration
   (SMR) mechanism.  SMR can be seen as a particular case of pre-planned
   Label Switched Path (LSP) rerouting that reduces the recovery
   resource requirements by allowing multiple protecting LSPs to share
   common link and node resources.  The recovery resources for the
   protecting LSPs are pre-reserved during the provisioning phase, and
   an explicit restoration signaling is required to activate (i.e.,
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