On Mon, Oct 17, 2005 at 09:03:45AM -1000, Randy Bush wrote: > > > Imagine a situation with no access to any means of direct communication > > (phone etc). You've got a message to deliver to some person, and have no > > idea where to find that person. Chances are there's a group of people > > nearby you can ask. They may know how to find the one you're looking > > for. If not they may know others they can ask on your behalf. Several > > iterations later the person is located and you've established a path > > through which you can pass the information you wanted. > > > > Translated into cisco terms this mean that the FIB is just a partial > > routing database, enough to start the search and otherwise handle > > communications in the neighborhood (no more than X router-hops, maybe > > AS-hops away). When the destination is located you keep that information > > for a while in case there are more packets going to the same place, > > similar to what you do with traditional route-cache. > > check out "The Landmark Hierarchy: A New Hierarchy for Routing in Very Large > Networks"; Paul Tsuchiya; 1989.
great stuff... i have a hardcopy. is it online yet? --bill (checking citesear...) > > randy