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Documentation of IANA assignments for Constraint-Based LSP setup using LDP (CR-LDP) Extensions for Automatic Switched Optical Network (ASON) (RFC3475)

IP.com Disclosure Number: IPCOM000012006D
Original Publication Date: 2003-Mar-01
Included in the Prior Art Database: 2003-Apr-02
Document File: 14 page(s) / 30K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

O. Aboul-Magd: AUTHOR

Abstract

Automatic Switched Optical Network (ASON) is an architecture, specified by ITU-T Study Group 15, for the introduction of a control plane for optical networks. The ASON architecture specifies a set of reference points that defines the relationship between the ASON architectural entities. Signaling over interfaces defined in those reference points can make use of protocols that are defined by the IETF in the context of Generalized Multi-Protocol Label Switching (GMPLS) work. This document describes Constraint-Based LSP setup using LDP (CR-LDP) extensions for signaling over the interfaces defined in the ASON reference points. The purpose of the document is to request that the IANA assigns code points necessary for the CR-LDP extensions. The protocol specifications for the use of the CR-LDP extensions are found in ITU-T documents.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 9% of the total text.

Network Working Group                                      O. Aboul-Magd

Request for Comments: 3475                               Nortel Networks

Category: Informational                                       March 2003

                 Documentation of IANA assignments for

        Constraint-Based LSP setup using LDP (CR-LDP) Extensions

             for Automatic Switched Optical Network (ASON)

Status of this Memo

   This memo provides information for the Internet community.  It does

   not specify an Internet standard of any kind.  Distribution of this

   memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2003).  All Rights Reserved.

Abstract

   Automatic Switched Optical Network (ASON) is an architecture,

   specified by ITU-T Study Group 15, for the introduction of a control

   plane for optical networks.  The ASON architecture specifies a set of

   reference points that defines the relationship between the ASON

   architectural entities.  Signaling over interfaces defined in those

   reference points can make use of protocols that are defined by the

   IETF in the context of Generalized Multi-Protocol Label Switching

   (GMPLS) work.  This document describes Constraint-Based LSP setup

   using LDP (CR-LDP) extensions for signaling over the interfaces

   defined in the ASON reference points.  The purpose of the document is

   to request that the IANA assigns code points necessary for the CR-LDP

   extensions.  The protocol specifications for the use of the CR-LDP

   extensions are found in ITU-T documents.

Table of Contents

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

   2.  Overview of CR-LDP Extensions for ASON .......................  2

   3.  CR-LDP Messages for ASON .....................................  3

      3.1 Call Setup Message ........................................  4

         3.1.2 Call Setup Procedure .................................  5

      3.2 The Call Release Message ..................................  5

         3.2.1 Call Release Procedure ...............................  6

   4.  CR-LDP TLV for ASON ..........................................  6

      4.1 Call ID TLV ...............................................  6

         4.1.1 Call ID Procedure ....................................  8

      4.2 Call Capability TLV .......................................  9

Aboul-Magd                   Informational                      [Page 1]

RFC 3475               CR-LDP Extensions for ASON             March 2003

      4.3 Crankback TLV .............................................  9

   5.  Additional Error Codes ....................................... 10

   6.  IANA Consideration ..........................................