1. 61st IETF Washington DC November 2004 IP/MPLS - GMPLS interworking in support of IP/MPLS to GMPLS migration draft-oki-ccamp-gmpls-ip-interworking-04.txt Deborah Brungard: dbrungard@att.com Jean-Louis Le Roux: jeanlouis.leroux@francetelecom.com Eiji Oki: oki.eiji@lab.ntt.co.jp Dimitri Papadimitriou: dimitri.papadimitriou@alcatel.be Daisaku Shimazaki: shimazaki.daisaku@lab.ntt.co.jp Kohei Shiomoto: shiomoto.kohei@lab.ntt.co.jp

2. 61st IETF Washington DC November 2004 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)

3. 61st IETF Washington DC November 2004 Broadband service price comparison 5.37 5.00 4.42 3.98 3.88 3.53 3.36 3.25 2.71 2.56 2.21 1.27 1.15 0.25 0.09 0123456 Japan Korea (Rep.) Belgium Hong Kong, Singapore Macao, New Zealand Canada Netherlands United Slovenia Israel Germany Lithuania Bahamas 100 kbps price (US$)

4. 61st IETF Washington DC November 2004 Traffic on IXs in Japan 90 80 70 60 50 40 30 20 10 0 (Gbps) Traffic on IXs in Japan (Ref.) Traffic on IXs in U.K. Source: Excerpt from report from Study Group on Next Generation IP-based Info-communications Infrastructure set up by MIC 2003 2002 2001 2000 1999

5. 61st IETF Washington DC November 2004 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

6. 61st IETF Washington DC November 2004 Major Changes Mechanism M-G-M scenario is refined. G-M/M-G scenario is added. MPLS NW GMPLS-based NW MPLS NW G1G3 G4G6 G2 G5 MPLS NW G1G3 G4G6 G2 G5 GMPLS-based NW

7. 61st IETF Washington DC November 2004 Remaining Issues Document restructuring –Move Te-related stuff (4.1.2) to MRN docs. Develop G-M-G, M-G/G-M mechanisms Define Interwork & Migration –Interwork: coexistence MPLS and GMPLS, MRN is referred for TE mechanism. –Migration: Converge to GMPLS-based networks Five Interworking scenarios –M-G-M (PSC, non PSC) –G-M-G (PSC, non PSC) –G-M/M-G (PSC)

8. 61st IETF Washington DC November 2004 Next Actions Adopt as WG document Requests for review/feedback