If you keep a separate peering/loopback-IP for each peer, you can move individual peering sessions to other devices if needed.
On Wed, August 27, 2008 05:39, Steve Bertrand wrote: > Iljitsch van Beijnum wrote: > >> The advantage of a separate loopback address is that if you ever have >> any trouble, you can simply remove that address and the trouble is gone, >> too. This wouldn't work for the loopback address you also use for iBGP >> or a physical interface. > > Ok. It probably would have made much more sense in my original post to > clarify that each eBGP multihop peer session is configured on separate > loopback interfaces, apart from the ones I use internally. > > Generally, I leave lo0 as-is, lo1 for internal, then configure each eBGP > multihop peer on an incremental loopback basis thereafter. > > So, in essence, I'll continue to use a loopback (separate from internal > functions) for ebgp-multihop peers, but instead of each session having > its own interface/IP, I'll share one for all of them. > > Thanks everyone! > > Steve >
