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Date:      Sun, 11 Mar 2001 15:36:50 +0300
From:      Alexandre Derevyanko <der@rusig.ru>
To:        freebsd-questions@freebsd.org
Subject:   Digital 21140 Fast Ethernet Card in 100 megabit mode
Message-ID:  <3AAB7162.D1638B02@rusig.ru>

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Hello !

I have a problems with Digital 21140 Fast Ethernet card.
It doesn't work correctly on any media except
10baseT/UTP half-duplex.

Computer is Dell OptiPlex GXMT 5100, 32Mb RAM.
FreeBSD 3.4 Release.
Except this ethernet card, no other expansion card inserted.


>From dmesg output:
------------------------------------------------------------------------------

de0: <Digital 21140 Fast Ethernet> rev 0x12 int a irq 11 on pci0.13.0
de0: SMC 9332DST 21140 [10-100Mb/s] pass 1.2
de0: address 00:00:c0:94:9e:d0
de0: enabling 10baseT port
------------------------------------------------------------------------------

Today i tryes to attach this card to our newly bought switch
SMS-EZ1016DT.
I can make the 100 megabit light to lit by "ifconfig de0 media
100baseTX",
but transfer rate drop to 76 kbytes/sec. I can't make full-dumplex light
to lit,
although "ifconfig mediaopt full-duplex" succeed without errors, but
transfer rate
doesn't change. It is curious, because if card think that it's
full-duplex and switch
think that it's half-duplex it will doesn't work at all, isn't it ?
I tryes to make 10baseT/UTP full-duplex, but transfer rate still 76
kbyte/sec.
Only in 10baseT/UTP half-duplex transfer rate went to ~ 700 kbytes\sec.

Does anybody have something to say about this case ?

P.S. Switch works correctly for other computers,
in 10baseT and 100baseTX full-duplex mode.

Regards,
Alexander.

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