Mike,

I did a fast google search and this popped out....

  "This thread, which started as a question about the ISS's Internet 
connection, is fascinating. The Internet connection uses the Ku-band, 
which delivers throughput around 10Mbit/sec down and 3Mbit/sec up from 
the station--roughly equivalent to a home Internet connection."

It's on 
http://www.tested.com/science/space/449539-how-fast-isss-internet-and-other-space-questions-answered/

Not too bad of a speed.... The latency will undoubtedly sucks due to a 
couple trips thru the geosynchronous satellite orbit and back.

Jon

On 11/23/2013 03:43 PM, Mike Bushroe wrote:
> "Now I'm curious.  How fast is their internet connection?"
>
> I said _LAN_, not _WAN_! I work primarily on the LOCAL area aspect of
> their network. However, during times of DNS coverage (or the opposite of
> what we normally talk about, the call ZOE's, or Zones of Exclusion,
> there is an upload/download link to Mission Operations. I am not sure
> how fast this is, but it runs on a Ku band transceiver. Any access to
> the outside world, and thus the actual internet, goes through there.
>
> "How is data sent to and from the space station?"
> Files are sent by CD, DVD, or file transfer to configuration control for
> the mission operations team. An OPS plan is written for any new or
> non-standard files, existing SOP for things like the Norton Antivirus
> update files. Then the Procedures are followed, the file(s) ftp'd onto
> one of the laptops On Station, and then the Procedures would call out
> what the Astronaut(s) should with the file(s) from there. I don't know
> how emails get in and out, but I assume that they are better scanned for
> hidden viruses than just about anyone else!
>
> "  Are hackers trying to break into their LAN a problem?"
> NASA Safety is _always_ worried about that or anything else that could
> possibly cause a safety problem. Even though there are a lot of
> firewalls between here and there, they are still looking to further
> reduce risks. Surprisingly, they are still not yet locking out telnet
> and ftp and requiring ssh and scp for all transfers, even within the
> Station.
>
>
> Beyond that, I can't tell you without, well, you know! ;)
>
> Mike
> --
> "Creativity is intelligence having fun." — Albert Einstein
>
>
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