Re: slow tcp on 100mbps wan, strange tcp window behaviour on ubuntu 9.10

[Andres Meyer <andres.meyer@xxxxxxxxxxxx>]

On Thu, 2010-03-11 at 09:11 +0100, didier wrote:
> Can you capture the same session on the client and the server? There's
> retransmitted and out of orders packets in your trace, as a matter of
> fact every time the server has more than  14K on the wire.

I think I found the problem. It seems that there is some component in
the network path (probably a switch) that does not queue all the packets
of a burst of the outgoing GB adapter. If I rate limit the server GB
interface to 80mbps, I get something like 60mbps for tcp transfers.

Thanks a lot to everybody.

Cheers,
Andres

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