Date: Wed, 14 Aug 2002 18:34:27 -0400 From: Matt Johnson <mattj@maine.rr.com> To: freebsd-questions@freebsd.org Subject: Problems with the xl driver or 3Com cards? Message-ID: <FD965646-AFD5-11D6-8FEA-00306585BF9A@maine.rr.com>
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Hi all, I've tried everything, and I'm really lost for answers here. I have a FreeBSD box which has a 3Com Etherlink XL in it. A while back, I got a new 100mbps switch to replace my old 10mbps hub. I noticed that despite now having a faster network hub, my FreeBSD machine was still unable to get speeds of more than 200 or 300K/s. This only happened when the FreeBSD machine was receiving. Transmitting worked fine. I did a lot of testing. I tested speeds between two other machines on my network to make sure it wasn't the hub, and they both got about 5MB/s to each each other. I noticed that the FreeBSD box was able to transmit to other machines at the full speed (5MB/s or so). The other machines on the network were able to do it both ways to each other as well. The kicker was when I tried putting in another NIC to the FreeBSD machine (this one used the "dc" driver) and also got full speeds both ways. Naturally, I assumed my current 3Com card (which had been in there for going 3 years now) was faulty. The card was a 3c905B-TX. I obtained a couple of spare, relatively unused 3c905-TX cards (not the 'B' model) and put them in my machine. I tried, and with both these cards, I had the exact same scenario: transmission works as it should, but reception seems to hit a 200K/s ceiling and fail. It happens with FTP and a few other transfer methods I tried. I really don't see what could possibly be the problem, unless there's some problem with the xl driver that I'm not aware of. I don't see how this could possibly have gone ignored for so long though, since I really didn't do anything to trigger it that I know of, and it's happened only with "xl" cards with 3 different cards. Does anyone have any idea what could be causing this? Thanks in advance, Matt To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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