[c-nsp] ISP Dual AS

[Saku Ytti]

On (2012-12-06 13:54 +0200), mert ozkul wrote:

> I have query about ISP Design.
> Why some ISP`s (Ex: BT) using dual AS`es on their network?  
> What are the advantages of using more than one AS in the ISP network?What can be achieved if you use more than one AS?

Most often it is result of M&A and lack of integration due to low benefits
and large work needed.

Sometimes it's because different business unit is selling IP transit and
different business unit is selling business/residential connections, and
the latter is 'customer' of the former.

-- 
  ++ytti