On Tue, 25 Feb 1997, Alex.Bligh wrote: [...]
Swamp /24, or use most of a /18|/19 underutilized, or better use more
Given current address allocation policies, how are you supposed to go about getting a /19 to waste in the first place?
intelligence than "just" BGP - for instance Paul Vixie's stuff at the last NANOG.
Paul's solution certainly adds more reliability as long as the clients doing the connecting do the right thing WRT rotating through the A records for your servers. As far as I can tell, it still doesn't do anything to solve the problem of choosing the "best" interface for the connection to happen on. Obviously the definition of "best" is up for debate, but if the squid machine was doing BGP, there would at least be some path optimization done. As it is, if the interface-defaulted squid machine was dual-homed to providers X and Y that don't peer, a customer of X could get the A record for the interface in Y's space. The client would then have to take the transit path between X and Y, which for many X's and Y's, sucks. If the dual-homed machine was doing BGP, the customer of X would always use the interface on X's side, and vice versa. Of course, we all know that we need to aggregate, shrink the routing table, shrink peer lists, etc., and Paul's solution certainly wins in that repect. -- Matt Ranney - mjr@ranney.com This is how I sign all my messages.