At 8:24 PM 5/11/96, Alan Hannan wrote:
The model scales well, imho. Regionalize your network into pieces. Apply each of the pieces into 1 or more proximities to a NAP|MAE.
Been there, done that.... I've already stated my view on the scalability of such arrangements.
Benefit: I gain low latency transit to most everyone.
Drawback: It is technically challenging to create an automate system to regionalize and create appropriate filter lists.
It also complicates every peering relationship and multi-homed customer connection, as you have to worry about both multiple external AS's and your internal routing redistribution from all of these regional routing clouds. If you presume a fairly dense set of interconnects among transit providers, then you're not going to get a significant improvement in latency despite the added complexity. /John