Extensions to RSVP-TE for LSP Egress Local Protection
draft-ietf-teas-rsvp-egress-protection-07

Document Type Active Internet-Draft (teas WG)
Last updated 2017-07-03 (latest revision 2017-02-18)
Replaces draft-ietf-mpls-rsvp-egress-protection
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Document shepherd Vishnu Beeram
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Send notices to Vishnu Beeram <vishnupavan@gmail.com>
Internet Engineering Task Force                                  H. Chen
Internet-Draft                                       Huawei Technologies
Intended status: Standards Track                                  A. Liu
Expires: August 22, 2017                                           Ciena
                                                                 T. Saad
                                                           Cisco Systems
                                                                   F. Xu
                                                                 Verizon
                                                                L. Huang
                                                            China Mobile
                                                                   N. So
                                                     Tata Communications
                                                       February 18, 2017

         Extensions to RSVP-TE for LSP Egress Local Protection
             draft-ietf-teas-rsvp-egress-protection-07.txt

Abstract

   This document describes extensions to Resource Reservation Protocol -
   Traffic Engineering (RSVP-TE) for locally protecting egress nodes of
   a Traffic Engineered (TE) Label Switched Path (LSP), which is a
   Point-to-Point (P2P) LSP or a Point-to-Multipoint (P2MP) LSP.

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   Copyright (c) 2017 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

Chen, et al.             Expires August 22, 2017                [Page 1]
Internet-Draft         RSVP LSP Egress Protection          February 2017

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Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
     1.1.  An Example of Egress Local Protection  . . . . . . . . . .  3
     1.2.  Egress Local Protection with FRR . . . . . . . . . . . . .  4
   2.  Conventions Used in This Document  . . . . . . . . . . . . . .  4
   3.  Terminology  . . . . . . . . . . . . . . . . . . . . . . . . .  4
   4.  Protocol Extensions  . . . . . . . . . . . . . . . . . . . . .  4
     4.1.  Extensions to SERO . . . . . . . . . . . . . . . . . . . .  4
       4.1.1.  Primary Egress Subobject . . . . . . . . . . . . . . .  6
       4.1.2.  P2P LSP ID Subobject . . . . . . . . . . . . . . . . .  7
       4.1.3.  Opaque Data Subobject  . . . . . . . . . . . . . . . .  8
   5.  Egress Protection Behaviors  . . . . . . . . . . . . . . . . .  8
     5.1.  Ingress Behavior . . . . . . . . . . . . . . . . . . . . .  9
     5.2.  Primary Egress Behavior  . . . . . . . . . . . . . . . . .  9
     5.3.  Backup Egress Behavior . . . . . . . . . . . . . . . . . . 10
     5.4.  Transit Node and PLR Behavior  . . . . . . . . . . . . . . 10
       5.4.1.  Signaling for One-to-One Protection  . . . . . . . . . 11
       5.4.2.  Signaling for Facility Protection  . . . . . . . . . . 12
       5.4.3.  Signaling for S2L Sub LSP Protection . . . . . . . . . 13
       5.4.4.  PLR Procedures during Local Repair . . . . . . . . . . 13
   6.  Considering Application Traffic  . . . . . . . . . . . . . . . 14
     6.1.  A Typical Application  . . . . . . . . . . . . . . . . . . 14
     6.2.  PLR Procedure for Applications . . . . . . . . . . . . . . 15
     6.3.  Egress Procedures for Applications . . . . . . . . . . . . 15
   7.  Security Considerations  . . . . . . . . . . . . . . . . . . . 15
   8.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 16
     8.1.  Definition of PROTECTION Object Reserved Bits  . . . . . . 16
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