24 May
2010
24 May
'10
5:34 a.m.
* George Bonser:
Well, I believe the original poster said that one of his colleagues swore that BGP multihoming wouldn't work unless both feeds terminated on the same router. I suppose said colleague has never heard of iBGP between two routers of the local AS. Those two routers should probably take a full table and exchange them between the two but going inside the network, yeah, they should probably simply originate a default into the the ospf routing.
Does this really work that well? Won't you still get loops or blackholes unless the eBGP routes on all border routers are identical? I think you also need iBGP speakers along all feasible paths between eBGP speakers.