nanog mailing list archives

RE: AS numbers and multiple site best practices


From: Andy Litzinger <Andy.Litzinger () theplatform com>
Date: Wed, 2 Feb 2011 09:24:42 -0800


I've had trouble finding any technical reason not to use it.

What is important to you about having QA and Corporate use separate AS
numbers?  Does using the same AS number result in a reduction of
separation?

For my part it's mostly a desire to make sure that changes to QA or Corp BGP configs could never impact BGP for our 
Production datacenter.  So far it looks like it may just be a fear of the unknown on my part as I can't think of a good 
example of how one might actually affect one BGP installation by making changes to another BGP installation purely 
based on sharing an AS number (clearly you could have impact if you are advertising the same space from both locations).


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