I've been reading and labbing bgp evpn for a little while now. I'm still not seeing the benifits of using ebgp for the ipv4 and evpn address families. Insead of using bgp evpn address family with an igp (ospf eigrp etc).
How many people have these in live environments. Have there been any shortcomings from using an igp? Has ebgp data plane made things easier? If ao, how?
The only arguments ive seen for ebgp - fast failure dectection = only if not a unidirectional failure. Otherwise bfd is required. - simpler config = many more commands required and more divergence between leaf configs - see the as path = why? the rd is there - fast convergence = All the tweeks still give it the same convergance as rip or anything else.
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