On 2013-04-04, at 15:53, Brian Dickson <brian.peter.dick...@gmail.com> wrote:
> Leo Bicknell wrote: > > Even if the exchange does not advertise the > exchange LAN, it's probably the case that it is in the IGP (or at > least IBGP) of everyone connected to it, I have experience of several networks where that is not the case. IGP carries routes for loopback and internal-facing interfaces; external-facing interface routes are only known to the local router; pervasive next-hop-self for IBGP. So, no great survey, but don't assume that everybody does things the same way. Joe
