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draft-sajassi-l2vpn-evpn -inter-subnet-switching- 01.txt

draft-sajassi-l2vpn-evpn -inter-subnet-switching- 01.txt. A. Sajassi (Cisco ), S. Salam (Cisco), Y . Rekhter (Juniper ), John Drake (Juniper ) IETF 86, March 2013 Florida. Objectives.

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draft-sajassi-l2vpn-evpn -inter-subnet-switching- 01.txt

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  1. draft-sajassi-l2vpn-evpn-inter-subnet-switching-01.txt A. Sajassi(Cisco), S. Salam (Cisco), Y. Rekhter (Juniper), John Drake (Juniper) IETF 86, March 2013 Florida

  2. Objectives • This draft describes how E-VPN can be used as part of an IRB solution to perform both intra-subnet as well as inter-subnet switching • The solution provides optimum unicast and multicast forwarding both within a DC as well as between DCs (East-West traffic)

  3. E-VPN PE Model for IRB

  4. Reference Diagram

  5. Scenarios of Interest • Connecting E-VPN sites within a DC • Connecting E-VPN sites in different DCs without route aggregation • Connecting E-VPN sites in different DCs with route aggregation • Connecting IP-VPN sites and E-VPN sites with route aggregation • Connecting IP-VPN sites and E-VPN sites without route aggregation

  6. Scenario-1 Inter-Subnet Forwarding Among E-VPN NVEs within a DC

  7. Scenario-2 Inter-Subnet Forwarding Among E-VPN NVEs in Different DCs without Route Aggregation

  8. Scenario-3 Inter-Subnet Forwarding Among E-VPN NVEs in Different DCs with Route Aggregation

  9. Scenario-4 Inter-Subnet Forwarding Among IP-VPN Sites and E-VPN NVEs with Route Aggregation

  10. E-VPN based IRB Solution provides • Optimal forwarding for intra-subnet (L2) traffic • Optimal forwarding for inter-subnet (L3) traffic • Support for both ingress replication as well as P2MP tunnels for multicast traffic • Support for multi-homing with active/active redundancy and per-flow load balancing • Support for network-based as well as host-based overlay models • Support for consistent policy-based forwarding for both L2 and L3 traffic

  11. Next Steps • Solicit comments from WG

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