Hi Gerhard,

Wednesday, June 28, 2006, 8:37:04 AM, you wrote:

> Tim N9PUZ wrote:

>> Using a VPN connection from there to our main office for certain apps
>> is very slow. I believe the nature of the encryption algorithms used
>> to make the VPN secure really messes with the satellite equipments 
>> ability to efficiently compress the data.

> Hadn't thought of that one. Sounds plausible.

> There's also the fact that many apps you run over VPN are designed for a
> LAN environment with very low latency. So they use many short data
> exchanges in a row -- quick on a LAN, but deadly slow on a satellite link
> with its 700+ ms latency. You can try that with Windows Explorer: barely
> workable over a VPN link between standard broadband locations in the US,
> almost not workable over a VPN link between standard broadband locations in
> the US and Brazil, and not workable if there's a satellite link it between.

> Gerhard

I just got off the phone with a Skycasters rep., a Satellite ISP. She
told me their latency is 1/3 of the satellite industry average, and
that VPN's, and VoIP are well supported. I didn't ask for the latency.
I don't see how VoIP would work well with 700+ ms latency, which,
IIRC, I've read is the industry standard for satellite transmission.

-- 
Best regards,
Patrick Murphy
James Valley Colony
-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist