Multiple AS, one per region, is about extracting maximum revenue from your client base. In 2000 we had no technical reason to do it, I can't see a technical reason to do it today. This is a layer 8/9 issue.
jy On 25/03/2011, at 5:42 AM, Zaid Ali <z...@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
