Re: Regional AS model

[Owen DeLong <owen () delong com>]

Sent from my iPad

On Mar 24, 2011, at 12:42 PM, Zaid Ali <zaid () zaidali com> wrote:

> I have seen age old discussions on single AS vs multiple AS for backbone and datacenter design. I am particularly 
> interested in operational challenges for running AS per region e.g. one AS for US, one EU etc or I have heard folks 
> do one AS per DC. I particularly don't see any advantage in doing one AS per region or datacenter since most of the 
> reasons I hear is to reduce the iBGP mesh. I generally prefer one AS  and making use of confederation. 
>
> Zaid

If you have good backbone between the locations, then, it's mostly a matter of personal preference. If you have 
discreet autonomous sites that are not connected by internal circuits (not VPNs), then, AS per site is greatly 
preferable.

Owen