[Gllug] TCP acceleration over high latency sat links

Chris Bell chrisbell at overview.demon.co.uk
Mon Nov 22 15:27:01 UTC 2004


On Mon 22 Nov, Julian Somers wrote:
> 
> Does anyone know about TCP acceleration?
> 
> I have been playing with the implementations of TCP Vegas and TCP
> Westwood that are shipped with the 2.6.9 kernel. I'm trying to tune TCP
> to work with huge latency. Im using inmarsat MPDS (a 64k packet switched
> circuit over an inmarsat satphone) for outgoing data, and DVB on
> opensky/eutelsat for incoming data. (This box is going to live on a
> ship, in case you're wondering why I give myself this grief.) Round trip
> times are never better than 2300ms, and are often much worse.

   Modern cheapo ethernet network switches use a store-and-forward system,
so would there be any chance of finding a cheap box with a larger buffer?

-- 
Chris Bell

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