[136226] in North American Network Operators' Group

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AS numbers and multiple site best practices

daemon@ATHENA.MIT.EDU (Andy Litzinger)
Tue Feb 1 19:27:15 2011

From: Andy Litzinger <Andy.Litzinger@theplatform.com>
To: "nanog@nanog.org" <nanog@nanog.org>
Date: Tue, 1 Feb 2011 16:27:44 -0800
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

Are there any best practices or guidelines surrounding whether or not one s=
hould use the same or unique AS numbers when advertising via BGP from 2 or =
more physically separate locations?  Each location would be advertising at =
least their own unique /24.

My specific scenario is that we are moving our QA Lab to a datacenter that =
we will multi-home with two providers via BGP.  We also plan to multi-home =
our corporate office with two providers (not likely to be the same provider=
s) also via BGP.  We currently have an AS that is in use for our multi-home=
d production data center.  In the interest of keeping production totally se=
gregated from QA/corp I would prefer to not use our production datacenter A=
S for our QA Lab or corporate network, but I've had trouble finding any tec=
hnical reason not to use it.  ARIN is asking for a detailed technical expla=
nation to justify my request.

Thanks in advance,
 -andy



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