On 2 Sep 2010, at 5:30 PM, Graham Beneke wrote: > I have been asked to investigate moving an entire network to multi-hop on all > the eBGP sessions. Basically all upstreams, downstreams and peers will eBGP > with a route reflector located in the core. This RR will be some kind of > quagga or similar box. The dev guys want to be able to poke at the BGP feeds > directly and do *magic* that standard router aren't capable of. > > My gut feel is that this is a bad idea. Besides anything else it makes sane > link state detection very challenging - especially where we have multiple > sessions with a peer. > > Is their any BCP or operational experience that agrees or disagrees with my > gut. ;-) > > -- > Graham Beneke
Even in lab environments I would say that eBGP multihop is a bad idea. Production networks that try to make money should not embark on such a mission. Trust your gut :) If some box wants to take a feed of routes, it should just iBGP peer with your RRs. Truman
