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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical RE: IBGP Question --- Router Reflector or iBGP Mesh
On Tue, 2005-01-11 at 02:03, Eric Kagan wrote: > > Does anyone have any input on when this does make sense ? We have 3 Main IP > pops with upstream BGP at each and 4 internal BGP sessions. I am looking to > add 2 new routers so there will be about 7 sessions on each border router. This seems to be a case where it does make sense. If you set up two route reflectors you could do with providing each border router only two iBGP links. You could for instance split your network into two logical clusters with 1 route reflector each and link the two route reflectors so they bounce routes to each other as well and provide your border routers with BGP links to both for good redundancy and a less complex network layout. Transition isn't that hard really, assuming your border routers already have iBGP links to the routers that will become reflectors it's a matter of configuring the reflectors right and making sure the border routers are connected as route reflector clients, and then start tearing down the remaining sessions. This isn't the only possible option using route reflector and full/partial mesh ofcourse and you'll have to decide what works for your network, but route reflectors would seem to be useful in your set-up. Cheers, -- --- Erik Haagsman Network Architect We Dare BV tel: +31(0)10 7507008 fax:+31(0)10 7507005 http://www.we-dare.nl
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