61st IETF Washington DC November 2004 IP/MPLS - GMPLS interworking in support of IP/MPLS to GMPLS...

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: [email protected] Le Roux: [email protected]

Eiji Oki: [email protected] Papadimitriou: [email protected] Shimazaki: [email protected]

Kohei Shiomoto: [email protected]


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)


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

0 1 2 3 4 5 6

JapanKorea (Rep.)

BelgiumHong Kong,

SingaporeMacao,

New ZealandCanada

NetherlandsUnited

SloveniaIsrael

GermanyLithuaniaBahamas

100 kbps price (US$)


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

20032002200120001999


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


Major Changes

• Mechanism M-G-M scenario is refined.

• G-M/M-G scenario is added.

MPLS NW GMPLS-based NW MPLS NWG1 G3

G4 G6

G2

G5

MPLS NWG1 G3

G4 G6

G2

G5

GMPLS-based NW


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)


Next Actions

• Adopt as WG document

• Requests for review/feedback

61st IETF Washington DC November 2004 IP/MPLS - GMPLS interworking in support of IP/MPLS to GMPLS...

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