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Date: Wed, 1 Sep 2004 07:50:31 -0700
From: Brooks Davis <brooks@one-eyed-alien.net>
To: Gabor Esperon <gesperon@yahoo.com>
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cc: freebsd-current@freebsd.org
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Subject: Re: Problem with Intel 82540EM Gigabit Ethernet Controller
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On Tue, Aug 31, 2004 at 11:49:25PM -0700, Gabor Esperon wrote:
> Hi!
>=20
> I have an Intel 82540EM Gigabit Ethernet Controller
> working at 100Mb/s on FreeBSD 5-CURRENT and FreeBSD
> 5-BETA3:
>=20
> em0:
> flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu
> 1500
>       =20
> options=3D1b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING>
>         inet 192.168.1.32 netmask 0xffffff00 broadcast
> 192.168.1.255
>         ether 00:07:e9:09:a7:37
>         media: Ethernet autoselect (100baseTX
> <full-duplex>)
>         status: active
>=20
> thats ok, but in both systems I can only get transfers
> at 2.xMb/s (MBytes) as the following "netstat -w1 -I
> em0" show:
>             input          (em0)           output
>    packets  errs      bytes    packets  errs    =20
> bytes colls
>        782     0      46920       1438     0  =20
> 2177132     0
>        788     0      53500       1452     0  =20
> 2209768     0
>        886     0      53160       1628     0  =20
> 2464792     0
> ...
>
> What could be the problem here?

This looks like a potential duplex mismatch to me.  Please make sure
your hub/switch is running full-duplex.

-- Brooks

--=20
Any statement of the form "X is the one, true Y" is FALSE.
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