Sure John but the Internet's toplogy is determined by ISP
interconnection and distribution topology; there is some
correlation with geography of course, but it isn't intrinsic.

   Brian

John Day wrote:
Geographical is a possible topology according to all of my topology books. As every map projection illustrates by constructing a topology between the map and the physical world. Whether that topology and a particular graph have a topological relation is a different matter. A network in and of itself has no topology.



At 13:50 +0100 12/2/04, Brian E Carpenter wrote:

Achim,

A localisation seems to be necessary for the Internet, otherwise so many
people would not work on a localisation for Internet users
(geopriv,ecrit, etc.).


No, this doesn't follow. The fact that there are commercial
motivations for geolocation or possible invasions of privacy
using geolocation doesn't mean it's *necessary*. In fact, in
many cases it may be highly undesirable. Preventing any
possibility of geolocation might be more desirable than
allowing it, depending on circumstances.

...

As the IPv6 addresses have enough space to map an area code, I don't
understand why it is never be implemented.


Because IP routing works by topology, not by geography. There is no
particular reason why logically adjacent address blocks would be
geographically adjacent. Therefore, the concept of "area code"
is simply meaningless in the IP context.

    Brian

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