nanog mailing list archives

Re: Andros Island Connectivity?


From: Warren Bailey <wbailey () satelliteintelligencegroup com>
Date: Wed, 1 May 2013 01:33:50 +0000

http://www.xiplink.com is who we work with (and sell). Don't mean to
advertise on NANOG, more of an FYI and place for those who care to learn
something. I hate the fact that satellite is looked at like a white
unicorn, it's a pretty cool solution that will perform day in and out for
as long as you need it to.

On 4/30/13 6:29 PM, "Ryan Wilkins" <ryan () deadfrog net> wrote:

I was going to mention this but failed to do so.

At the very least, do some testing first to make sure that the latency
isn't going to introduce unforeseen issues.  Case in point, the Chicago
satellite-based network that I manage is sometimes used for Police / Fire
/ EMS dispatching.  The City's Computer Aided Dispatch system ended up
crashing during an early test when it was discovered that it couldn't
handle the high latencies encountered on satellite links.  This required
the vendor to adjust the code to deal with these issues.  Granted this is
an extreme example, but the point is that the physics of satellite links
can do all sorts of things to applications that one might not expect.

Cheers,
Ryan Wilkins

On Apr 30, 2013, at 9:13 PM, Rob Seastrom <rs () seastrom com> wrote:

They will not be happy with VSAT latency (typically 700ms though
physics says you can never do better than 550, and that's for the
space segment alone) if they are running RDP, VNC, Citrix, or similar
technologies.  Sorry for being a buzzkill, Warren.  :)







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