In einer eMail vom 17.12.2009 10:02:35 Westeuropäische Normalzeit schreibt [email protected]:
Most of the scalability discussions we have had are dealing exactly with the mapping system, not how to tunnel or rewrite the addresses. The mapping system is the architecture that uses the tunnels or address manipulation based on some address structure. A tunneling scheme/address rewrite together with an address structure is not sufficient for scalabilty. - Hannu Right. It takes an architecture which doesn't require knowing each topological detail from the far distance, hence which doesn't require disseminating updates of respective changes. And we all know: the farer away, the larger the area, the more details there are. All the mainstream mapping-based architectures which only try to reduce the scalability problem ( a little bit), just shift the scalability problem (here: the update churn) to some other places. Concurrently they create an extra complexity which will be terrible wrt better routing technologies. Heiner >-----Original Message----- >From: [email protected] [mailto:[email protected]] On >Behalf Of ext Tony Li >Sent: Tuesday, December 15, 2009 11:52 >To: Brian E Carpenter >Cc: [email protected]; Lixia Zhang >Subject: Re: [rrg] belated msg: further description of the >recommendation process > >Brian E Carpenter wrote: > >>> Mapping systems are obviously a component of a solution but are not >>> by themselves a solution. To be considered seriously, they >should be >>> used in conjunction with some network layer solution. >> >> Hmm. Don't you think that to some extent these should be orthogonal? >> A mapping mechanism needs to meet the specific requirements of a >> network layer mechanism, but that doesn't require the two to be >> irrevocably bound to each other. >> >> I have a feeling that the mapping system should be very general in >> nature, in case the first cut at either the locator or identifier >> space proves to fall short. Also I feel it should support hierarchy, >> even if we don't need a hierarchy from the start. > > > >Brian, > >Our recommendation is focused on providing an alternative >routing architecture. A mapping system is a fine component, >but would not seem to provide a credible architecture by itself. > >Tony > >_______________________________________________ >rrg mailing list >[email protected] >http://www.irtf.org/mailman/listinfo/rrg > _______________________________________________ rrg mailing list [email protected] http://www.irtf.org/mailman/listinfo/rrg
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