Re: Simplex Satellite Links

From: Hank Nussbacher (hank@att.net.il)
Date: Sat Oct 20 2001 - 12:37:55 EDT


On Sat, 20 Oct 2001, Edward S. Desouza wrote:

See:
http://www.internet-2.org.il/satellite-testing.html
http://sunsite.cnlab-switch.ch/ftp/doc/standard/rfc/24xx/2488
http://sunsite.cnlab-switch.ch/ftp/doc/standard/rfc/27xx/2760

If you have just one server on each side you should then read:
http://www.psc.edu/networking/perf_tune.html

-Hank

> Hi,
> This is a question not related to Cisco, but Since
> this problem ...but I thought I'd post it here all the
> same.....
> We have a satellite link as follows :
>
> One Downlink broadcast stream( over 4 locations )
> downlink 12 mbps
> Four Uplink unicast streams ( 4 * 0.768 mbps )
>
> I have configured transmit interfaces and everything
> works fine except for one very peculiar problem:
>
> When I open one FTP session ( to any server ) the max
> download speed is 15 kBps. Using other links ( fibre )
> of similar capacity, download speeds go upto 100 kBps
> to the same FTP server.
>
> If however, I open multiple FTP windows, each of the
> FTp downloads goes to a max of 15 kBps.So I know that
> the link is not congested.
>
> I have connected to a quite a few common ftp servers
> with similar results.
>
>
> I was wondering if any guys out there have faced this
> problem, and a possible solutin to the problem ???
>
>
> Any comments/ suggestionswould be really
> appreciated.
>
>
> Rgds,
> Edward
>
>
> I have tried downloading from a wide
>
>
> __________________________________________________
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>

Hank Nussbacher



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