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Link Bundling in MPLS Traffic Engineering (TE) (RFC4201)

IP.com Disclosure Number: IPCOM000130541D
Original Publication Date: 2005-Oct-01
Included in the Prior Art Database: 2005-Oct-26
Document File: 13 page(s) / 27K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

K. Kompella: AUTHOR [+3]

Abstract

For the purpose of Generalized Multi-Protocol Label Switching (GMPLS) signaling, in certain cases a combination of is not sufficient to unambiguously identify the appropriate resource used by a Label Switched Path (LSP). Such cases are handled by using the link bundling construct, which is described in this document. This document updates the interface identification TLVs, which are defined in the GMPLS Signaling Functional Description.

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This is the abbreviated version, containing approximately 10% of the total text.

Network Working Group                                        K. Kompella
Request for Comments: 4201                                    Y. Rekhter
Updates: 3471, 3472, 3473                               Juniper Networks
Category: Standards Track                                      L. Berger
                                                          Movaz Networks
                                                            October 2005


             Link Bundling in MPLS Traffic Engineering (TE)

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

   For the purpose of Generalized Multi-Protocol Label Switching (GMPLS)
   signaling, in certain cases a combination of <link identifier, label>
   is not sufficient to unambiguously identify the appropriate resource
   used by a Label Switched Path (LSP).  Such cases are handled by using
   the link bundling construct, which is described in this document.
   This document updates the interface identification TLVs, which are
   defined in the GMPLS Signaling Functional Description.


Kompella, et al.            Standards Track                     [Page 1]
RFC 4201                Link Bundling in MPLS-TE            October 2005


Table of Contents

   1.  Introduction .................................................  2
       1.1.  Specification of Requirements ..........................  2
   2.  Link Bundling ................................................  3
       2.1.  Restrictions on Bundling ...............................  4
       2.2.  Routing Considerations .................................  4
       2.3.  Signaling Considerations ...............................  5
             2.3.1.  Interface Identification TLV Format ............  6
             2.3.2.  Errored Component Identification ...............  7
   3.  Traffic Engineering Parameters for Bundled Links .............  7
       3.1.  OSPF Link Type .........................................  7
       3.2.  OSPF Link ID ...........................................  7
       3.3.  Local and Remote Interface IP Address ..................  7
       3.4.  Local and Remote Identifiers ............................