Hi, I'm not sure if this is useful at all, but there is a blog post [1] from one of the people behind the PacketPushers podcast regarding connecting two OpenStack clouds with a EVPN. They are wondering how to do it. They want to connect an NSX based cloud with a OpenContrail based cloud and do it at very high speeds. Interesting use case, real world. Thanks, Curtis. [1]: http://etherealmind.com/help-wanted-stitching-a-federated-sdn-on-openstack-with-evpn/