08-27-2021 12:57 AM
Hi,
pretty simple question: Why do I need a Route Reflector for MP-BGP EVPN in ACI?
I thought that we are using EVPN in ACI Multi-Pod to share Endpoint Information and NOT routes. I thought we use VPNv4 to exchange routes.
If I use EVPN only for Endpoint Information why do I need a route reflector? We don't have any routes here, right?
08-27-2021 03:11 AM
Hi,
MP-BGP EVPN is used for MPod/MSite - EP information exchange.
MP-BGP VPNv4 is used for external route distribution to compute nodes.
Stay safe,
Sergiu
08-27-2021 05:22 AM
Thank you.
But why do I need a EVPN Route Reflector to exchange EP information. It is just EP Information, no routes. Why do I need a Route Reflector? Doesn't make any sense?!
08-27-2021 05:36 AM
To avoid full mesh between spines. For a small number of spines, its not that relevant, but for a fabric with 24 Spines (scalability limit), it will be a lot.
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