From owner-freebsd-questions Wed Apr 19 9:33:17 2000 Delivered-To: freebsd-questions@freebsd.org Received: from ruby.ora.com (ruby.ora.com [63.80.158.10]) by hub.freebsd.org (Postfix) with ESMTP id 77B3437BDBC for ; Wed, 19 Apr 2000 09:33:09 -0700 (PDT) (envelope-from mbertsch@ruby.ora.com) Received: from localhost (mbertsch@localhost) by ruby.ora.com (8.9.3/8.9.3) with ESMTP id MAA21547 for ; Wed, 19 Apr 2000 12:33:07 -0400 (EDT) Date: Wed, 19 Apr 2000 12:33:07 -0400 (EDT) From: Mike DeGraw-Bertsch To: questions@freebsd.org Subject: Fast ethernet Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG 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 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 100baseTX 10baseT/UTP 10baseT/UTP 100baseTX 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? 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