On Thu, Oct 06, 2011 at 06:05:12PM -0500, Michael Vallaly wrote: > > Fellow bird users, > > I currently have a single router with two upstream eBGP sessions to two > separate ISPs. IE: > > ISP1 <---> Router <---> ISP2 > > I am attempting to advertise a public netblock to both of these ISPs > simultaneously. I currently have a single kernel routing table > (exterior) configured for the public netblock (203.0.113.0/24), below > is a sample config. > > I seem to have a problem in Bird 1.3.3 with this configuration where > the netblock only gets advertised out one of the two upstream peers.
See https://git.nic.cz/redmine/projects/bird/wiki/BGP_example_2 > When I enable both ext_isp1 and ext_isp2 protocols simultaneously it > seems the BGP advertisement only happens via one peer only, (not both as > I expect / want). Does it make sense that this doesn't work as I expect? Problem is that only the best route is propagated. If the best route is filtered, second best route is not propagated. -- Elen sila lumenn' omentielvo Ondrej 'SanTiago' Zajicek (email: [email protected]) OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net) "To err is human -- to blame it on a computer is even more so."
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