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Generalized Multi-Protocol Label Switching (GMPLS) Signaling Constraint-based Routed Label Distribution Protocol (CR-LDP) Extensions (RFC3472)

IP.com Disclosure Number: IPCOM000011391D
Original Publication Date: 2003-Jan-01
Included in the Prior Art Database: 2003-Feb-18
Document File: 24 page(s) / 49K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

P. Ashwood-Smith: AUTHOR [+4]

Abstract

This document describes extensions to Multi-Protocol Label Switching (MPLS) Constraint-based Routed Label Distribution Protocol (CR-LDP) 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 CR-LDP specific description of the extensions. A generic functional description can be found in separate documents.

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Network Working Group� � � � � � � � � � � � � � � � � � � � � � � � � � P. Ashwood-Smith, Editor

Request for Comments: 3472� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � Nortel Networks

Category: Standards Track� � � � � � � � � � � � � � � � � � � � � � � � � � � � � L. Berger, Editor

� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � Movaz Networks

� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � January 2003

� � � � Generalized Multi-Protocol Label Switching (GMPLS) Signaling

Constraint-based Routed Label Distribution Protocol (CR-LDP) 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) Constraint-based Routed Label Distribution Protocol (CR-LDP)

� � 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 CR-LDP 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� ...............................� � 3

� � � 2.2� Generalized Label� .......................................� � 4

� � � 2.3� Waveband Switching� ......................................� � 5

� � � 2.4� Suggested Label� .........................................� � 6

� � � 2.5� Label Set� ...............................................� � 6

� � 3.� Bidirectional LSPs� ........................................� � 8

� � � 3.1� Procedures� ..............................................� � 8

� � 4.� Notification on Label Error� ...............................� � 9

� � 5.� � � Explicit Label Control� ..................................� � 9

� � � 5.1� Procedures� ..............................................� � 9

Ashwood-Smith & Berger� � � � � Standards Track� � � � � � � � � � � � � � � � � � � � [Page 1]

RFC 3472� � � � � � � � � GMPLS Signaling - CR-LDP Extensions� � � � � � January 2003

� � 6.� Protection TLV� ............................................� 10

� � � 6.1� Procedur...