Hi,
On Tue, 18 Dec 2001, Petr Holub wrote:
> Hi all!
>
> I've encountered really awful behavior of my SMC card using
> tx driver in FreeBSD 4.3. On 100 Mbps network I get the throughput
> just about 200 kBps :-( Colleagues of mine running some PC
> based routers have very similar experiences with this driver
> (in both 4.3 and 4.4 Rel's) The same card running under the
> exactely same conditions in NetBSD is working pretty good
> (11 MBps) and in Windows 2000 (8 MBps). Also running other cards
> (like those with rl drivers) on the same network gives
> very reasonable results in FreeBSD (approx. 10.5 MBps) so
> I'm pretty convinced driver is to blame. Does anybody have
> some workaround for this?
the usual problem with this kind of performance with any driver
is failed full/half duplex negotiation. Please try manually forcing your
card to half or full duplex
Add one of
-mediaopt full-duplex
or
-mediaopt half-duplex
depending on the setting of your switch to your ifconfig line in /etc/rc.conf
This is the single most common cause of really low ethernet performance.
I have had good experiences with the tx driver on 4.3 ond 4.4 releases.
Greetings
Christian
--
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