Date: Wed, 19 Apr 2000 09:47:43 -0700 From: Kent Stewart <kstewart@3-cities.com> To: Mike DeGraw-Bertsch <mbertsch@oreilly.com> Cc: questions@freebsd.org Subject: Re: Fast ethernet Message-ID: <38FDE32F.659AC69F@3-cities.com> References: <Pine.GSO.4.21.0004191120080.11296-100000@ruby.ora.com>
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Mike DeGraw-Bertsch wrote: > > Hi all. This problem has been bugging me for a while now, and I haven't > been able to make much headway on it. > > I have a Compaq Deskpro running: > FreeBSD medic.east.ora.com 4.0-STABLE FreeBSD 4.0-STABLE #10: Thu Apr 13 > 13:23:08 EDT 2000 root@medic.ora.com:/usr/src/sys/compile/DRIVER i386 > > I'm using a 3com 3905 Fast Etherlink, with autoselect 10/100mbps, device > name xl0: > > xl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 > inet x.x.x.x netmask 0xffff0000 broadcast x.x.x.x > inet6 xx::250:4ff:xxx:c7a1%xl0 prefixlen 64 scopeid 0x1 > ether 00:50:xx:xx:xx:xx > media: autoselect (10baseT/UTP) status: active > supported media: autoselect 100baseTX <full-duplex> 100baseTX > 10baseT/UTP <full-duplex> 10baseT/UTP 100baseTX <hw-loopback> > > Currently, I'm connected to a 10mbps hub, and my network connection > works fine. However if I plug directly into a 100BaseTX port on our > switch, my connection slows to the point of being almost unusable--I can > hardly even use Pine. It seems to be okay when there's very little data > packets going back and forth (such as the command prompt), but when hit > with anything sizable (like my inbox in Pine), it stalls and sits there > for a while. FTPing stalls after the first 2k block or so. > > I also noticed messages in dmesg detailing a tx underrun when I made the > switch: > > xl0: transmission error: 90 > xl0: tx underrun, increasing tx start threshold to 120 bytes > xl0: watchdog timeout > > I'd obviously prefer to run at 100mbps and get off the hub, but have hit > a brick wall with this problem. Has anyone else seen this, or know of a > solution? I found that when I first installed FreeBSD 4.0 on my computer I call jade, that the xl0 NIC was defaulting to a inoperable state. I added "media 100baseTX and mediaopt full-duplex" to my ifconfig_xl0 options and the problems went away. A "man xl" had the full-duplex being a media option, which doesn't work. No matter what I tried, the transfer rate is about 1/2 of what I get between a pair of Intel Pro/100+ MA's. Kent > > Thanks! > -Mike > > --- > > Mike DeGraw-Bertsch > Senior Systems Administrator > O'Reilly and Associates > Cambridge, MA > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message -- Kent Stewart Richland, WA mailto:kstewart@3-cities.com http://www.3-cities.com/~kstewart/index.html To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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