2004-03-01 22:13:58

by Denis Vlasenko

[permalink] [raw]
Subject: Re: Problems getting a stable 100 megabit connection with linksys etherfast switch

On Sunday 29 February 2004 23:30, john wrote:
> Hi,
>
> I am having problems getting a stable connection with my linux machines
> when trying to connect them at 100 megabit speeds to a linksys etherfast
> switch.
>
>
> I have attached some diagnostic outputs for your review. I hope that
> someone can help me with this problem.
>
> I believe using a managed switch will solve the problem, but I don't want
> to have to spend $1000.00 to fix this problem, when I should be able to
> obtain a stable connection with the equipment I am currently using.

Try half duplex. You seldom do lots of xfers in both directions at once,
so half duplex is not a big loss.

Use tcpdump to see what's going on on the wire.
--
vda


2004-03-04 12:44:18

by john

[permalink] [raw]
Subject: Re: Problems getting a stable 100 megabit connection with linksys etherfast switch

Hi Denis,

Turns out I had a cable problem. Some of the patch cables that I made, had
the wrong pinout. After replacing them, the connection is stable at 100baseTx-FD.

Thanks

John



On Tue, 2 Mar 2004 00:01:47 +0200, Denis Vlasenko wrote
> On Sunday 29 February 2004 23:30, john wrote:
> > Hi,
> >
> > I am having problems getting a stable connection with my linux machines
> > when trying to connect them at 100 megabit speeds to a linksys etherfast
> > switch.
> >
> >
> > I have attached some diagnostic outputs for your review. I hope that
> > someone can help me with this problem.
> >
> > I believe using a managed switch will solve the problem, but I don't want
> > to have to spend $1000.00 to fix this problem, when I should be able to
> > obtain a stable connection with the equipment I am currently using.
>
> Try half duplex. You seldom do lots of xfers in both directions at
> once, so half duplex is not a big loss.
>
> Use tcpdump to see what's going on on the wire.
> --
> vda


--