[13910] in North American Network Operators' Group
Re: Geographic v. topological address allocation
daemon@ATHENA.MIT.EDU (Kent W. England)
Thu Nov 20 23:16:55 1997
Date: Thu, 20 Nov 1997 20:09:04 -0800
To: "Sean M. Doran" <smd@clock.org>
From: "Kent W. England" <kwe@geo.net>
Cc: nanog@merit.edu
In-Reply-To: <ytaff3a6gf.fsf@cesium.clock.org>
At 10:25 AM 17-11-97 -0500, Sean M. Doran wrote:
>... Hierarchical routing is the only known means of
>scaling IP addresses as they exist now, and therefore the
>only hierarchy that can be imposed on IP addresses is
>strictly topological.
>
This is true, but the definition of the top of the hierarchy is arbitrary
and is the nexus of the debate about "topological" versus geographical
addressing, which I interpret as "ISP at top" versus "exchange point at
top" hierarchies. Both are valid topological hierarchies.
--Kent
