Seamless MPLS draft-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.

LDP Downstream on Demand Architecture Labeled BGP static Routing static default NH self NH unchanged Seamless MPLS AGS ABR ABR ISIS Level 1 AGS DSLAM DSLAM ISIS Level 1 ISIS Level 2 Label Distribution Labeled BGP LDP Downstream on Demand LDP DoD LDP 1.000 10.000 100.000

Use Cases Use Case #1 Redundancy in the access PW for Business P2P Service Core Network AGN ABR AGN AN AN PW towards SC for RC Service Creation for Residential Customers

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

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