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Generalized Multi-Protocol Label Switching (GMPLS) Signaling Resource ReserVation Protocol-Traffic Engineering (RSVP-TE) Extensions
RFC 3473

Network Working Group                                  L. Berger, Editor
Request for Comments: 3473                                Movaz Networks
Category: Standards Track                                   January 2003

     Generalized Multi-Protocol Label Switching (GMPLS) Signaling
 Resource ReserVation Protocol-Traffic Engineering (RSVP-TE) Extensions

Status of this Memo

   This document specifies an Internet standards track protocol for the
   Internet community, and requests discussion and suggestions for
   improvements.  Please refer to the current edition of the "Internet
   Official Protocol Standards" (STD 1) for the standardization state
   and status of this protocol.  Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2003).  All Rights Reserved.

Abstract

   This document describes extensions to Multi-Protocol Label Switching
   (MPLS) Resource ReserVation Protocol - Traffic Engineering (RSVP-TE)
   signaling required to support Generalized MPLS.  Generalized MPLS
   extends the MPLS control plane to encompass time-division (e.g.,
   Synchronous Optical Network and Synchronous Digital Hierarchy,
   SONET/SDH), wavelength (optical lambdas) and spatial switching (e.g.,
   incoming port or fiber to outgoing port or fiber).  This document
   presents a RSVP-TE specific description of the extensions.  A generic
   functional description can be found in separate documents.

Table of Contents

   1.  Introduction  ..............................................   2
   2.  Label Related Formats   ....................................   3
    2.1  Generalized Label Request Object  ........................   3
    2.2  Bandwidth Encoding  ......................................   4
    2.3  Generalized Label Object  ................................   5
    2.4  Waveband Switching  ......................................   5
    2.5  Suggested Label  .........................................   6
    2.6  Label Set  ...............................................   7
   3.  Bidirectional LSPs  ........................................   8
    3.1  Procedures  ..............................................   9
    3.2  Contention Resolution  ...................................   9
   4.  Notification  ..............................................   9
    4.1  Acceptable Label Set Object  .............................  10
    4.2  Notify Request Objects  ..................................  10

Berger                      Standards Track                     [Page 1]
RFC 3473          GMPLS Signaling - RSVP-TE Extensions      January 2003

    4.3  Notify Message  ..........................................  12
    4.4  Removing State with a PathErr message  ...................  14
   5.  Explicit Label Control  ....................................  15
    5.1  Label ERO subobject  .....................................  15
    5.2  Label RRO subobject  .....................................  16
   6.  Protection Object  .........................................  17
    6.1  Procedures  ..............................................  18
   7.  Administrative Status Information  .........................  18
    7.1  Admin Status Object  .....................................  18
    7.2  Path and Resv Message Procedures  ........................  18
    7.3  Notify Message Procedures  ...............................  20
   8.  Control Channel Separation  ................................  21
    8.1  Interface Identification  ................................  21
    8.2  Errored Interface Identification  ........................  23
   9.  Fault Handling  ............................................  25
    9.1  Restart_Cap Object  ......................................  25
    9.2  Processing of Restart_Cap Object  ........................  26
    9.3  Modification to Hello Processing to Support
         State Recovery  ..........................................  26
    9.4  Control Channel Faults  ..................................  27
    9.5  Nodal Faults  ............................................  27
   10. RSVP Message Formats and Handling  .........................  30
    10.1  RSVP Message Formats  ...................................  30
    10.2  Addressing Path and PathTear Messages   .................  32
   11. Acknowledgments  ...........................................  32
   12. Security Considerations  ...................................  33
   13. IANA Considerations  .......................................  34
    13.1  IANA Assignments  .......................................  35
   14. Intellectual Property Considerations  ......................  36
   15. References  ................................................  37
    15.1  Normative References  ...................................  37

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