To: Mr. Kam Lam, Rapporteur for Question 14 of ITU-T Study Group 15. From: Adrian Farrel and Kireeti Kompella Co-chairs of the CCAMP Working Group of the IETF Cc: Alex Zinin and Bill Fenner, Routing Area Directors of the IETF Scott Bradner, IETF/ITU-T Liaison Coordinator For: Action Deadline: 15th December 2004 Subject: Comparison of LMP and ASON Discovery Dear Mr. Lam, The IETF's CCAMP Working Group has been working on a draft to compare LMP as used in a GMPLS system with the concept of 'discovery' as expressed in ASON. Many of the people actively working on this draft are participants in the ITU-T study groups. The abstract of this draft is as follows: The Link Management Protocol (LMP) has been developed as part of the Generalized MPLS (GMPLS) protocol suite to manage Traffic Engineering (TE) links. The GMPLS control plane (routing and signaling) uses TE links for establishing Label Switched Paths (LSPs). This memo describes the relationship of the LMP procedures to 'discovery' as defined in the International Telecommunication Union (ITU), i.e. G.8080, G.7714, and G.7714.1, and on-going ITU-T work. This document provides an overview of LMP in the context of the ITU-T Automatically Switched Optical Networks (ASON) [G.8080] and transport network [G.805] terminology and relates it to the ITU-T discovery work to promote a common understanding for progressing the work of IETF and ITU-T. The current version of the draft can be found at http://www.ietf.org/internet-drafts/draft-ietf-ccamp-transport-lmp-00.txt The CCAMP working group intends to carry out a "Working Group Last Call" on this draft. The Working Group would welcome input from SG15 on this work. Sincerely, Kireeti Kompella & Adrian Farrel, CCAMP WG chairs