-----Ursprüngliche Mitteilung----- Von: Paul Jakma <p...@jakma.org> An: Robert Raszuk <rob...@raszuk.net> Cc: rrg@irtf.org Verschickt: Mo., 26. Apr. 2010, 13:27 Thema: Re: [rrg] Next pass On Sun, 25 Apr 2010, Robert Raszuk wrote: > Your destination (content you are looking for) is more then likely > to be > very distributed - even globally. Perhaps obvious, but note that we can easily have a system that allows for both kinds of routing. yes,for sure: The amount of extra-churn for TARA info is neglectable compared with the permanent increase of the FIBs and RIBs. The size of the required TARA-routing table is pretty static. Prefix a -> Routed with reference to some external, universally understood space Prefix b -> Routed without reference to any such space If it is the case that geographic routing could "factor out" a sizable proportion of routes, then that's surely worth investigating? To allow the fact that such a system can not be used to aggregate /all/ routes to stymie its consideration completely is perhaps short-sighted. Note, Geographical data is used to compose skimmed topologies (zooms) properly, i.e. not simple to select the next hop towards the destination's geo-location. So any detour is still enabled. More generally, if we have a number of different routing problems to solve, and if we are having trouble finding The One Way that solves them all, perhaps then we need to consider building a system composed of multiple different ways. Topology-aware routing provides a huge multitude more of routes than a DV-based system (where you don't know all those detours via nodes to which you have forwarded the BGP UPDATE) Wrt geographic routing: The ITU proposals to delegate to and assign IPv6 address space via per-country, statutory bodies could be a vehicle for such. Course, there is some opposition in places to the very idea of allowing delegation via ITU.. There is a major difference with E.164 country codes: There you will always have ( at the country level) what I call the Istanbul effect. Heiner regards, -- Paul Jakma p...@jakma.org Key ID: 64A2FF6A Fortune: The Fifth Rule: You have taken yourself too seriously. _______________________________________________ rrg mailing list rrg@irtf.org http://www.irtf.org/mailman/listinfo/rrg
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