This would be a good solution if both of his sessions terminated on the same edge router, but in Peter's scenario he has 2 sessions, each on a different edge router so multi-hop load-balacing wouldn't be helpful for him. If he had both upstream provider links on the same edge router, I think he would be better off just doing LACP/link-aggregation (or ml-ppp for serial links) with his upstream and using that for load-sharing since both of his upstream links are terminating on the same router on his provider's side..
Cheers, Kevin On Wed, May 20, 2009 at 11:07 PM, Brad Hedlund (brhedlun) <[email protected]> wrote: > Better to use 'ebgp multihop' and peer to provider router's loopback. Then > have equal cost static routes to provider's loopback via the two physical > interface next hop IP addresses. > > Cheers, > > Brad Hedlund > [email protected] > http://www.internetworkexpert.org > > > On May 20, 2009, at 9:47 PM, "Peter Kranz" <[email protected]> wrote: > >> Setup is as follows; 2 edge routers, each with a BGP session receiving >> full >> routes to the same provider router. The provider is load balancing inbound >> traffic to our AS nicely, 50/50 between the edge routers.. I would also >> like >> to load balance the outbound traffic.. I've considered adding >> 'maximum-paths >> 2' to install the two equal paths, but an concerned about FIB TCAM >> impacts. >> Will adding this command cause each equal cost route to take one >> additional >> TCAM entry, i.e. full routing table x 2 > 524k TCAM limit = EPIC meltdown? >> >> >> >> Current FIB TCAM: >> >> L3 Forwarding Resources >> >> FIB TCAM usage: Total Used >> %Used >> >> 72 bits (IPv4, MPLS, EoM) 524288 285506 >> 54% >> >> 144 bits (IP mcast, IPv6) 262144 5 >> 1% >> >> >> >> Peter Kranz >> <http://www.UnwiredLtd.com> www.UnwiredLtd.com >> Desk: 510-868-1614 x100 >> >> Mobile: 510-207-0000 >> <mailto:[email protected]> [email protected] >> >> >> >> _______________________________________________ >> cisco-nsp mailing list [email protected] >> https://puck.nether.net/mailman/listinfo/cisco-nsp >> archive at http://puck.nether.net/pipermail/cisco-nsp/ > > _______________________________________________ > cisco-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ > -- || Kevin Hodle || || 913-780-3959 (Primary) || 913-626-7197 (Mobile) PGP KeyID [0xBBDE8ED7] fingerprint [3E1B 1F10 938E A831 8CF2 670C 1329 0B8B BBDE 8ED7] _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
