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Routing Extensions in Support of Generalized Multi-Protocol Label Switching (GMPLS) (RFC4202)

IP.com Disclosure Number: IPCOM000130542D
Original Publication Date: 2005-Oct-01
Included in the Prior Art Database: 2005-Oct-26
Document File: 28 page(s) / 57K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

K. Kompella: AUTHOR [+4]

Abstract

This document specifies routing extensions in support of carrying link state information for Generalized Multi-Protocol Label Switching (GMPLS). This document enhances the routing extensions required to support MPLS Traffic Engineering (TE).

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Network Working Group                                   K. Kompella, Ed.
Request for Comments: 4202                              Y. Rekhter,  Ed.
Category: Standards Track                               Juniper Networks
                                                            October 2005


                   Routing Extensions in Support of
           Generalized Multi-Protocol Label Switching (GMPLS)

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 (2005).

Abstract

   This document specifies routing extensions in support of carrying
   link state information for Generalized Multi-Protocol Label Switching
   (GMPLS).  This document enhances the routing extensions required to
   support MPLS Traffic Engineering (TE).


Kompella & Rekhter          Standards Track                     [Page 1]
RFC 4202              Routing Extensions for GMPLS          October 2005


Table of Contents

   1.  Introduction. . . . . . . . . . . . . . . . . . . . . . . . .   3
       1.1.  Requirements for Layer-Specific TE Attributes . . . . .   4
       1.2.  Excluding Data Traffic from Control Channels. . . . . .   6
   2.  GMPLS Routing Enhancements. . . . . . . . . . . . . . . . . .   7
       2.1.  Support for Unnumbered Links. . . . . . . . . . . . . .   7
       2.2.  Link Protection Type. . . . . . . . . . . . . . . . . .   7
       2.3.  Shared Risk Link Group Information. . . . . . . . . . .   9
       2.4.  Interface Switching Capability Descriptor . . . . . . .   9
             2.4.1.  Layer-2 Switch Capable. . . . . . . . . . . . .  11
             2.4.2.  Packet-Switch Capable . . . . . . . . . . . . .  11
             2.4.3.  Time-Division Multiplex Capable . . . . . . . .  12
             2.4.4.  Lambda-Switch Capable . . . . . . . . . . . . .  13
             2.4.5.  Fiber-Switch Capable. . . . . . . . . . . . . .  13
             2.4.6.  Multiple Switching Capabilities per Interface .  13
             2.4.7.  Interface Switching Capabilities and Labels . .  14
             2.4.8.  Other Issues. . . . . . . . . . . . . . . . . .  14
       2.5.  Bandwidth Encoding. . . . . . . . . . . . . . . . . . .  15
   3.  Examples of Interface Switching Capa...