RFC 3475 (rfc3475) - Page 1 of 13


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



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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


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