Ok, now that I have a better view of the big picture I understand.

Were you thinking of creating just one BIG VPN or clustering them
depending on the location? 
I think the latter schema would scale better.

Walter

2011/5/31 Dave Taht <dave.taht@gmail.com>
This is a screenshot, of me, over a vpn...

http://www.bufferbloat.net/attachments/download/33/routertest.png

monitoring 5 clients' cpu and memory usage,
using pdsh and X to the routers in the lab,
while trying to understand why performance peaked at 130Mbits and latencies had hit 100s of ms on connections capable of gigabytes.

(I had had several other problems on the way, which I'd quickly resolved)

http://www.bufferbloat.net/projects/bismark-testbed/wiki/Experiment_-_QoS

Doing updates in the field is a single command.


--
Dave Täht
SKYPE: davetaht
US Tel: 1-239-829-5608
http://the-edge.blogspot.com



--
Walter de Donato, PhD Student
Dipartimento di Informatica e Sistemistica
Università  degli Studi di Napoli "Federico II"
Via Claudio 21 -- 80125 Napoli (Italy)
Phone: +39 081 76 83821 - Fax: +39 081 76 83816
Email: walter.dedonato@unina.it
WWW: http://wpage.unina.it/walter.dedonato