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OSPF Extensions in Support of Inter-Autonomous System (AS) MPLS and GMPLS Traffic Engineering (RFC5392)

IP.com Disclosure Number: IPCOM000178081D
Original Publication Date: 2009-Jan-01
Included in the Prior Art Database: 2009-Jan-15
Document File: 18 page(s) / 39K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

M. Chen: AUTHOR [+3]

Abstract

This document describes extensions to the OSPF version 2 and 3 protocols to support Multiprotocol Label Switching (MPLS) and Generalized MPLS (GMPLS) Traffic Engineering (TE) for multiple Autonomous Systems (ASes). OSPF-TE v2 and v3 extensions are defined for the flooding of TE information about inter-AS links that can be used to perform inter-AS TE path computation.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 7% of the total text.

Network Working Group                                           M. Chen Request for Comments: 5392                                     R. Zhang Category: Standards Track                 Huawei Technologies Co., Ltd.                                                                 X. Duan                                                            China Mobile                                                            January 2009

       OSPF Extensions in Support of Inter-Autonomous System (AS)                   MPLS and GMPLS Traffic Engineering

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) 2009 IETF Trust and the persons identified as the    document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal    Provisions Relating to IETF Documents (http://trustee.ietf.org/    license-info) in effect on the date of publication of this document.    Please review these documents carefully, as they describe your rights    and restrictions with respect to this document.

Abstract

   This document describes extensions to the OSPF version 2 and 3    protocols to support Multiprotocol Label Switching (MPLS) and    Generalized MPLS (GMPLS) Traffic Engineering (TE) for multiple    Autonomous Systems (ASes).  OSPF-TE v2 and v3 extensions are defined    for the flooding of TE information about inter-AS links that can be    used to perform inter-AS TE path computation.

   No support for flooding information from within one AS to another AS    is proposed or defined in this document.

 Chen, et al.                Standards Track                     [Page 1]
 RFC 5392            OSPF Extensions for Inter-AS TE         January 2009

 Table of Contents

   1. Introduction ....................................................2

      1.1. Conventions Used in This Document ..........................3

   2. Problem Statement ...............................................3

      2.1. A Note on Non-Objectives ...................................4

      2.2. Per-Domain Path Determination ..............................4

      2.3. Backward Recursive Path Computation ........................6

   3. E...