1. ietf-65 draft-kulmala-l3vpn-interas-option-d-02.txt ASBR VRF Context for BGP/MPLS IP VPN IETF-65 draft-kulmala-l3vpn-interas-option-d-02.txt Marko Kulmala Ville Hallivuori Martin Halstead Jyrki Soini Jim Guichard

2. ietf-65 draft-kulmala-l3vpn-interas-option-d-02.txt Draft Overview and History Combination of Multi-AS options ‘a’ and ‘b’, targeted at Multi-AS MPLS IP VPN (RFC 4364) service extensions. +MP-eBGP peering between ASBRs +ASBR has a minimum of a VRF per VPN +Hierarchical per-VPN admission control at the AS border +Allows VPN topology hiding, traffic load balancing, path optimization, route summarization, route capping etc. -Trust model of Option B remained – specifically MPLS based data plane – addressed in this draft +Added new authors ABSTRACT This option combines per VPN VRFs at the Autonomous System Border Router (ASBR) as described in 'Option A' with the redistribution of labeled VPN-IPv4 routes as described in 'Option B'. In addition, this option allows for a data plane consisting of two methods of traffic forwarding between attached ASBR pairs.

3. ietf-65 draft-kulmala-l3vpn-interas-option-d-02.txt AS 1AS 2 CE1CE2 Operation – Shared Interface Forwarding MP-eBGP peer plus global labeled interface VRF1 @ PE1 VRF4@ PE2 VRF3 @ ASBR2 VRF 2 @ ASBR1 VPN Membership Domain VPN Membership Domain VPN Membership Domain

4. ietf-65 draft-kulmala-l3vpn-interas-option-d-02.txt 4 AS 1AS 2 CE1CE2 Operation – Private Interface Forwarding MP-eBGP peer Back-to-back VRF Attachment Circuit VRF1 @ PE1 VRF4@ PE2 VRF3 @ ASBR2 VRF 2 @ ASBR1 VPN Membership Domain VPN Membership Domain VPN Membership Domain

5. ietf-65 draft-kulmala-l3vpn-interas-option-d-02.txt What is covered in this Draft? Updated the following sections: Reference Model Operation section Deployment Considerations Comparison of current RFC 4364 Multi-AS options Security section draft-kulmala-l3vpn-interas-option-d-02.txt

6. ietf-65 draft-kulmala-l3vpn-interas-option-d-02.txt Next steps More discussion on the list – particularity from Service Providers wanting to partner at Layer 3 Adopt the ID as a WG Document draft-kulmala-l3vpn-interas-option-d-02.txt