Date: Fri, 21 Jul 2000 00:18:10 +0200 From: "Julian Stacey" <jhs@jhs.muc.de> To: "Lawrence Cotnam Jr." <larry@pkunk.net> Cc: freebsd-questions@FreeBSD.ORG, freebsd-hardware@FreeBSD.ORG, ernst@jhs.muc.de, norbert@jhs.muc.de, gary@jhs.muc.de Subject: Re: Trouble with 3Com 3C509 NIC Message-ID: <200007202218.WAA32174@park.jhs.no_domain> In-Reply-To: Your message of "Wed, 19 Jul 2000 18:14:56 PDT." <MKEOLDIJFGDJKDLHGFEGEEEJCBAA.larry@pkunk.net>
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> Message-id: <MKEOLDIJFGDJKDLHGFEGEEEJCBAA.larry@pkunk.net>
"Lawrence Cotnam Jr." wrote:
> Hi. I'm using FreeBSD 4.0-RELEASE. I've been having a bit of a nightmare
> here with my FreeBSD server and its 3COM 3C509 network card. It's a AUI/BNC
> variety, currently using AUI with a MAU transceiver to 10base-T.
My recent experience might not help here, but might help others in similar
situations, so here's what I discovered:
I had just 1 or 2K bytes/sec on an "rl" NIC using 4.0,
'ifconfig -a' reported the rl0 was in "autoselect" mode,
I guessed the NIC was maybe switching modes & losing traffic,
so I added "media 10baseT/UTP" to ifconfig_rl0 in /etc/rc.conf,
and now get normal performance on 10 Mb/s twisted ethernet.
BTW the slow performance of "autoselect" was seen on several (though I did
not try all 4 combinations) of
{ a 4 wire cable with no screen : a screened [maybe 8wire] } &
{ to a hub : direct via crossover adapter to another FreeBSD 4.0-RELEASE
"ep" running on a pcmcia 3com 3c589c }.
Maybe your chipset supports media selection ? maybe as well as AUI/BNC
settings, you might also have a 3rd auto detect option selected ?
that's running slow ? if so try changing it explicitly to AUI
using the 3 com software, or try aprox "ifconfig ep0 media 10base5/AUI"
Long shots, agreed, maybe worth the try though. You might also ask your
friends if they know anyone with an ethernet analysis box. Good Luck.
Julian
-
Julian Stacey http://bim.bsn.com/~jhs/
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