Regional AS model

David Freedman david.freedman at
Fri Mar 25 08:49:32 CDT 2011

> Single AS worldwide is fine with or without a backbone.
> Which is "preferable" is up to you, your situation, and your personal
> tastes.  (I guess one could argue that wasting AS numbers, or
> polluting the table with lots of AS numbers is bad or un-ashetically
> pleasing, but I think you should do whatever fits your situation
> anyway.)

Depends on your routing requirements, for example, you need to rely on a
default or disable as_path checks (or re-write the path) to be able to
see your other clusters (if they do need to communicate)...


David Freedman
Group Network Engineering
Claranet Group

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