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)
Alternative Format: Original Text Document
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