[tech] The BGP experiment...
David Luyer
david_luyer at pacific.net.au
Fri Feb 15 20:39:10 WST 2002
Adrian wrote (re: iBGP not propogating routes):
> Does zebra have a 'no sync' option like the cisco
> routers do?
Separately, are the connections in route-reflector-client
mode? If not they won't propogate iBGP-learnt routes
because by default iBGP is meant to be fully meshed.
Also are you using next-hop-self? With next-hop-self and
a route to the next hop, you shouldn't have any next-hop
issues. Although sometimes next-hop-self doesn't work with
iBGP since it's intended for eBGP, and then you have to use
an incoming route-map remapping the next hop (because
usually when next-hop-self isn't effective, outgoing route-map
next hop setting isn't effective).
This all applies to Ciscos but half of what applies to Ciscos
applies to Zebra.
All your eBGP peers should have next-hop-self set at the remote
and and all your iBGP peers should probably be route reflectors
(depending on topology).
David.
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