Extensions to Resource Reservation Protocol For Fast Reroute of Traffic Engineering GMPLS LSPs
draft-ietf-teas-gmpls-lsp-fastreroute-01

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Document Type Active Internet-Draft (teas WG)
Last updated 2015-01-25
Replaces draft-tsaad-ccamp-rsvpte-bidir-lsp-fastreroute
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TEAS Working Group                                          Mike Taillon
Internet-Draft                                           Tarek Saad, Ed.
Intended Status: Standards Track                      Rakesh Gandhi, Ed.
Expires: July 29, 2015                             (Cisco Systems, Inc.)
                                                            Manav Bhatia
                                                             Lizhong Jin
                                                        January 25, 2015

    Extensions to Resource Reservation Protocol For Fast Reroute of
                  Traffic Engineering GMPLS LSPs
            draft-ietf-teas-gmpls-lsp-fastreroute-01

Abstract

   This document defines Resource Reservation Protocol - Traffic
   Engineering (RSVP-TE) signaling extensions to support Fast Reroute
   (FRR) of Packet Switched Capable (PSC) Generalized Multi-Protocol
   Label Switching (GMPLS) Label Switched Paths (LSPs).  These signaling
   extensions allow the coordination of bidirectional bypass tunnel
   assignment protecting a common facility in both forward and reverse
   directions of a co-routed bidirectional LSP.  In addition, these
   extensions enable the re-direction of bidirectional traffic and
   signaling onto bypass tunnels that ensure co-routedness of data and
   signaling paths in the forward and reverse directions after FRR to
   avoid RSVP soft-state timeout.

Status of this Memo

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Taillon et al.           Expires July 29, 2015                  [Page 1]
Internet-Draft           FRR for TE GMPLS LSPs          January 25, 2015

Copyright and License Notice

   Copyright (c) 2015 IETF Trust and the persons identified as the
   document authors. All rights reserved.

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Table of Contents

   1. Introduction  . . . . . . . . . . . . . . . . . . . . . . . . .  3
   2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . .  4
   3. Fast Reroute For Unidirectional GMPLS LSPs  . . . . . . . . . .  5
   4. Bypass Tunnel Assignment for Bidirectional GMPLS LSPs . . . . .  5
     4.1. Merge Point Labels  . . . . . . . . . . . . . . . . . . . .  5
     4.2. Merge Point Addresses . . . . . . . . . . . . . . . . . . .  5
     4.3. RRO IPv4/IPv6 Subobject Flags . . . . . . . . . . . . . . .  6
     4.4. Bypass Tunnel Assignment Co-ordination  . . . . . . . . . .  6
       4.4.1. Bypass Tunnel Assignment Signaling Procedure  . . . . .  6
       4.4.2. Bypass Tunnel Assignment Policy . . . . . . . . . . . .  7
       4.4.3. BYPASS_ASSIGNMENT Subobject . . . . . . . . . . . . . .  8
   5. Link Protection Bypass Tunnels for Bidirectional GMPLS LSPs . .  9
     5.1. Behavior Post Link Failure After FRR  . . . . . . . . . . . 10
   6. Node Protection Bypass Tunnels for Bidirectional GMPLS LSPs . . 10
     6.1. Behavior Post Link Failure After FRR  . . . . . . . . . . . 11
     6.2. Behavior Post Link Failure To Re-coroute  . . . . . . . . . 11
   7. Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . 12
   8. Security Considerations . . . . . . . . . . . . . . . . . . . . 12
   9. IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 13
   10. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 13
   11.  Contributing Authors  . . . . . . . . . . . . . . . . . . . . 13
   12. References . . . . . . . . . . . . . . . . . . . . . . . . . . 14
     12.1.  Normative References  . . . . . . . . . . . . . . . . . . 14
     12.2.  Informative References  . . . . . . . . . . . . . . . . . 14
   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 15
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