Hi All, As the deployment footprint of lisp based networks keeps on expanding, the way they interoperate with other domains is becoming more and more relevant. One case that is becoming more and more frequent is the interconnection of LISP based domains with EVPN domains. This is specially true when interconnecting campus networks with datacenters hosting some of the network services.
We have submitted an initial draft, “Decoupled Interconnection of LISP and EVPN VXLAN Domains”: https://datatracker.ietf.org/doc/draft-pitta-portoles-lisp-evpn-interconnect/ The draft describes interconnection between LISP and EVPN VXLAN domains using separate border devices, covering: • Layer 2: An Ethernet handoff, including MAC learning and broadcast, unknown-unicast, and multicast (BUM) forwarding. • Layer 3: Tenant IP transit using an IGP or eBGP, with prefix redistribution at each border. Each domain retains its own overlay control plane. The draft also discusses additional requirements for optional routed connectivity within a common IP prefix. We would appreciate the working group’s review and feedback on the draft. We will also be presenting this work during the next IETF session in San Francisco. Thanks, Balaji (on behalf of the authors)
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