RFC 3471 (rfc3471) - Page 1 of 34


Generalized Multi-Protocol Label Switching (GMPLS) Signaling Functional Description



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Network Working Group                                  L. Berger, Editor
Request for Comments: 3471                                Movaz Networks
Category: Standards Track                                   January 2003


           Generalized Multi-Protocol Label Switching (GMPLS)
                    Signaling Functional Description

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) 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 functional description of the extensions.  Protocol
   specific formats and mechanisms, and technology specific details are
   specified in separate documents.

Table of Contents

   1.  Introduction  ...............................................   2
   2.  Overview   ..................................................   3
   3.  Label Related Formats   .....................................   6
     3.1  Generalized Label Request  ...............................   6
     3.2  Generalized Label  .......................................  11
     3.3  Waveband Switching  ......................................  12
     3.4  Suggested Label  .........................................  13
     3.5  Label Set  ...............................................  14
   4.  Bidirectional LSPs  .........................................  16
     4.1  Required Information  ....................................  17
     4.2  Contention Resolution  ...................................  17
   5.  Notification on Label Error  ................................  20
   6.  Explicit Label Control  .....................................  20
     6.1  Required Information  ....................................  21



Berger                      Standards Track


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