Arista Networks Platform is designed for next-generation data centers. They support asymmetric IRB, symmetric IRB, flood and learn types, EVPN types two, five, three, overlay and underlay. When Juniper first came out, they did not support symmetrical IRB. They only supported CRB, central routing and bridging, and asymmetrical IRB. So, to make it work, we had to do IBGP for the overlay, EBGP for the underlay, and then use the IBP as a route reflector so that the spine could be the server and the top-of-rack could be the client. So it reflects the route down for all of the overlay. When you deal with internal activities, it's hard to troubleshoot, which is why we like the Arista Networks Platform. Unfortunately, Juniper doesn't support CRB anymore.
