In einer eMail vom 14.01.2010 16:54:56 Westeuropäische Normalzeit schreibt j...@mercury.lcs.mit.edu:
Everyone who keeps going on about embedding geographic information into the names used by the path-selection is missing something really critical: ***Two computers which are _across the street from each other_, in geographic terms, may be (and often, are) _many hops apart_, in network terms - because they are connected to different ISPs whose geographically nearest point of connection is a long way away (e.g. in another city).*** 100 % right. This is exactly why my concept is based on the mapping between an EID and a TARA-locator of (each of ) its xTR(s). Geographic information about two computers tells you _nothing_ about how close they are to each other, in terms of the path through the network between them. That is why the names used in path selection have to be based on, and embody, only the _actual network connectivity_. Right. The shortest path is not the spheric distance, instead it is the path with the least number of hops. For simpler understanding: Consider an OSPF network topology. Here, if you want to determine the best next hop, you have to identify the egress node first:It is that node which has advertised the fitting prefix to the current dest.address. However it could also be identified by a match of its TARA-locator and the destination-TARA-locator of the forwarded packet's prepended TARA-header. Thereafter, by means of one or few table offsets the next hop can be selected! RFC4984 talks a lot about the applicability of Moore's law. Why is the RRG ignoring this? Which critique mentions "proposal xyz does/does not enable the applicability of Moore's law" ? Heiner >Now, can we stop being hearing this ridiculous nonsense about embedding >geographic information in the names used by path-selection? > Noel _______________________________________________ rrg mailing list rrg@irtf.org http://www.irtf.org/mailman/listinfo/rrg
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