62nd IETF Minneapolis March 2005

IP/MPLS - GMPLS interworking in support of IP/MPLS to GMPLS migration

draft-oki-ccamp-gmpls-ip-interworking-05.txt

Deborah Brungard: dbrungard@att.comJean-Louis Le Roux: jeanlouis.leroux@francetelecom.com

Eiji Oki: oki.eiji@lab.ntt.co.jpDimitri Papadimitriou: dimitri.papadimitriou@alcatel.beDaisaku Shimazaki: shimazaki.daisaku@lab.ntt.co.jp

Kohei Shiomoto: shiomoto.kohei@lab.ntt.co.jp

62nd IETF Minneapolis March 2005

Motivation

• Current situation: Legacy MPLS deployment for converged service

• Evolution– GMPLS-based network for traffic demand– New features developed in GMPLS

• Objective: Interwork between MPLS and GMPLS

• Motivation– Coexistence of MPLS and GMPLS– Migration from MPLS to GMPLS (in Control plane)

62nd IETF Minneapolis March 2005

Summary of I-D

• Difference between MPLS and GMPLS wrt Interworking– Architecture (C/D separation, Bidirectional,

P&R)– Routing (GMPLS-TE-Opaque-LSA)– Signaling (New objects, message)

• Mechanisms　 (M-G-M)– Routing: TE link, FA, Segment stitching– Signaling: Nesting, Contiguous, Stitching– Discovery of GMPLS signaling capability

62nd IETF Minneapolis March 2005

Remaining work from previous version

• Move Te-related stuff (4.1.2) to MRN docs. (DONE)

• Develop G-M-G, M-G/G-M mechanisms (NOT YET)

• Define Interwork & Migration (NOT YET)– Interwork: coexistence MPLS and GMPLS,

MRN is referred for TE mechanism.– Migration: Converge to GMPLS-based

networks

62nd IETF Minneapolis March 2005

Remaining work to next version

• Address both Integrated (Peer) and Augmented/Overlay models.

• Merge the following ID– GMPLS Deployment in Existing IP/MPLS

networks <draft-ali-ccamp-gmpls-deployment-augmented-model-00.txt> Feb 2005

62nd IETF Minneapolis March 2005

Next Actions

• Adopt as WG document

• Requests for review/feedback