Inter-AS Options for NVO3 and BGP/MPLS VPN Weiguo Hao, Lucy Yong, Sue Hares, Robert Raszuk Luyuan Fang, Osama Zia, Shahram Davari, Andrew Qu March 2015.

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Presentation transcript:

Inter-AS Options for NVO3 and BGP/MPLS VPN Weiguo Hao, Lucy Yong, Sue Hares, Robert Raszuk Luyuan Fang, Osama Zia, Shahram Davari, Andrew Qu March 2015 Dallas USA draft-hao-bess-inter-nvo3-vpn-01

PE Option A for NVO3 and BGP VPN Inter-AS Option A [RFC4364]: Map Logical Network to VLANs March 2015BESS WG IETF92 Dallas2 Logical Network map to VLANs; Each VLAN maps to VRF (tenant specific routing table) MPLS Core PE VRF NVOs VRF

Inter-AS Option B [RFC4364]: March 2015BESS WG IETF92 Dallas3 Option B for NVO3 and BGP VPN MPLS Core ASBR-w ASBR-d NVO Logical Network prefixes advertised in MP-BGP with MPLS labels MPLS Labeled packets mapped to/from logical network DC site WAN

Option B Implementations at DC site Case 1: Vanilla Option B by use of BGP in DC Case 2: Vanilla Option B by use of NVA in DC March 2015BESS WG IETF92 Dallas4 ASBR-d NVE1 NVE2 MP-BGP Tunnels … ASBR-d NVE1 NVE2 MP-BGP Tunnels … NVA non-BGP Case 1 Case 2 Note: there is a concern on use of MP-BGP to set up a tunnel in case 2, the proper solution will be addressed under IDR WG Case 1 & 2 are in Common: ASBR-d does not have VRFs and sub-interfaces Date planes have the exact same implementation

ASBR-d Process in Case1&2 March 2015BESS WG IETF92 Dallas5 Control Plane: Allocates a VNID per a VPN label when getting a route from ASBR-w. Allocates an MPLS label per when getting a route from an NVE. Data Plane: Has an outgoing forwarding table, – An entry has the mapping of VNID to MPLS label. Has an incoming forwarding table, – An entry has the mapping of MPLS label to. Perform NVO3 Tunnel and MPLS VPN tunnel stitching – No payload lookup, which is scalable.

Option B Implementations at DC site Case 3: Partial Option B March 2015BESS WG IETF92 Dallas 6 ASBR-d/PE NVOs VRF ASBR-w MPLS Core Logical Network prefixes advertised in MP-BGP with MPLS labels MPLS Labeled packets mapped to/from logical network

Options Comparison Inter-AS options are good for the cases where DC and BGP/MPLS WAN belong different administrators March 2015BESS WG IETF92 Dallas7

Next Steps Solicit comments Request to adopt it as WG draft March 2015BESS WG IETF92 Dallas8