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In einer eMail vom 14.04.2008 19:26:26 Westeuropäische Normalzeit schreibt
lixia@CS.UCLA.EDU:
It looks to me the above confusion seems coming from not defining The German E.164 telephone numbers are NETWORK TOPOLOGICAL as the
digit-to-link mapping was even done mechanically (formerly). Yes, it was up
to human planning, that neighboring digit values was chosen for neighboring
geographical areas. And yes, there are violations to the initial configuration
from which we can learn: The area/city codes for Munich and Frankfurt once were
811 resp. 611. They changed to 89 resp. 69 as to yield one digit to the user
number (enforced by the growth of both cities' populations).
Will say: E.164 isn't any better. It is also complying with "addresses may
follow topology"
Address aggregation is cumbersome, it is subject for change, and also
there are a lot of addresses which do not fit for aggregation. Also, AS
numbers can't be aggregated either,right?!
But :"Topology may also follow addressing" which is clearly the better
choice.
Heiner
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