Most designs for campus EVPN seem to suggest that you would need to have for example OSPF that redistributes loopbacks and then you would have RRs you peer within the same AS.
How about a campus EVPN setup where all the BGP peerings would happen using eBGP with each "PE" switch having different AS number?
At the moment we run a MPLS network between the campus buildings and the remote sites, something like 100 or so "PE routers" at the moment. We're not really using any of those more advanced MPLS features like TE, FRR or not really even QoS as we have mostly fiber runs between the sites.
Do you see any difference/benefits/pitfalls if we went with EVPN and eBGP between every router (switches doing EVPN...)? Mostly I'm thinking of getting rid of RR's as we have many different sites/buildings so it would be nice to separate those and not have the whole network fail because the RR was not available somewhere. Also not having the "complete state of the network" at each site, as they usually have only 2-3 uplinks to other sites and currently only one of them provides the default route so it does not really matter if the network flaps 100 km away from the router.
Thanks for any ideas!
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