From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0.1) Gecko/20020830 Description of problem: 3Com 3c509C-TX-M will give heavy packet loss (over 50%). Version-Release number of selected component (if applicable): How reproducible: Always Steps to Reproduce: 1. Install RedHat 8.0 with 3Com 3C905C-TX-M; 2. Ping some LAN hosts Actual Results: Ping will report heavy packet loss (every time over 50%). Expected Results: No packet loss. Additional info: I changed the card to another 3Com 3C905C-TX-M and the results were the same, but as soon I changed the card to 3Com 3C905B-TX-M, there were no packet loss at all. $ uname -a Linux sarmax 2.4.18-14 #1 Wed Sep 4 12:13:11 EDT 2002 i686 athlon i386 GNU/Linux
have you ever tried this with previous linux versions ?
I haven't ran Linux on this machine, but this type of card does run with earlier versions of RedHat Linux.
I may have the same problem. I've spent last week trying to find out the reason for very poor network performance and as the last resort I grabbed today 3c90x-102.tar.gz from 3com and compiled. Well, it worked for me like a breeze. I don't have heavy packet loses on ping (unless I start pinginig with -f options and large packet sizes) but I do have very bad nfs and ftp performance. I use RH 7.3 with the latest i686 kernel (kernel-2.4.18-17.7.x).
3C905CX-TX-M is working OK, too.
Use 3Com's DOS-based tool to check media and duplex EEPROM settings of the card. They should both be set to "Auto" or "NWAY". Different cards even of the same type may behave differently because of these default settings.
Thanks for the bug report. However, Red Hat no longer maintains this version of the product. Please upgrade to the latest version and open a new bug if the problem persists. The Fedora Legacy project (http://fedoralegacy.org/) maintains some older releases, and if you believe this bug is interesting to them, please report the problem in the bug tracker at: http://bugzilla.fedora.us/