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Re: funky network slowdown



* Allan Wind <allanwind@attbi.com> [2002-11-09 17:16:26 -0500]:
> On 2002-11-09 09:45:36, N. Thomas wrote:
> > Normally, I would think something is wrong with the NIC on the Debian box,
> > but it talks to the OpenBSD box fine. Can anyone explain this anomaly?
> 
> No, but make sure the switch and the box agrees on half or full duplex,
> with Cisco switches and with Sun or HP machines it has to be forced rather
> than relaying on auto-negotiation to make it work right.

The switch is an el-cheap model that I bought from Fry's Electronics, it is
a Hawking Technologies 8 port mini switch. (It is small, the AC power
adaptor that came with it is bigger than the switch.) According to the
directions on the box, it is fully auto negotiating of speed (10Mbs/100Mbs)
as well as communications mode (half/full duplex).

> What are you meassuring speed with?

I'm creating a large 20Mb file with this command:

    dd if=/dev/zero of=foo bs=1m count=20

and then scp'ing it between the machines.

> Do you have a cross cable and could plug two machines up directly?

That will be my next step.

thomas

-- 
N. Thomas
nthomas@cise.ufl.edu
Etiamsi occiderit me, in ipso sperabo



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