Seamless MPLSdraft-leymann-mpls-seamless-mpls-02.txt

Nicolai Leymann, Thomas Beckhaus (DT)Wim Henderickx (Alcatel-Lucent)

Clarence Filsfils (Cisco)Dirk Steinberg (Steinberg Consulting)

Bruno Decraene (FT)

79th IETF, Beijing, China

draft-leymann-mpls-seamless-mpls-02

• Architecture

• Changes

• Moving Forward

draft-leymann-mpls-seamless-mpls-02

• Describes a scalable architecture• To use MPLS in a large (100k nodes) AS

splitted across IGP areas.• Based on existing IETF protocols. No new

protocols extensions.• Provides end to end transport MPLS

possible between any nodes no need for service specific configuration on intermediate transport nodes.

Architecture

AGSDSLAM ABR ABR AGSDSLAM

ISIS Level 2ISIS Level 1

ISIS Level 1

static

static default NH selfNH unchanged

LDPLDPDownstream on

Demand

LDP DoD

Labeled BGP

Labeled BGP

Routi

ng

Label D

istr

ibuti

on

Seamless MPLS

1.000 10.000 100.000

Use Cases

PW for Business P2P Service

CoreNetwork

Use Case #1

Redundancy in the access

Redundancy in the access

AN

Service Creation for Residential Customers

Service Creation for Residential Customers

AN

PW towards SC for RC PW towards SC for RC

AGN AGNABR ABR

Changes -01 to -02

• Added section 5.1.8 on “Network Availability and Simplicity”– IGP Convergence– Per-Prefix LFA FRR– Hierarchical data plane and BGP Prefix

Independent Convergence– BGP anycast– Applicability

• Several editorial changes, fixed typos

Moving Forward

• Working Group Adoption

• Add Multicast Support

Thank You