Bug 64408 - eepro100 wont run full duplex
Summary: eepro100 wont run full duplex
Alias: None
Product: Red Hat Linux
Classification: Retired
Component: kernel
Version: 7.2
Hardware: i686
OS: Linux
Target Milestone: ---
Assignee: Jeff Garzik
QA Contact: Brian Brock
Depends On:
TreeView+ depends on / blocked
Reported: 2002-05-03 20:05 UTC by Lou Biskup
Modified: 2013-07-03 02:06 UTC (History)
2 users (show)

Clone Of:
Last Closed: 2002-10-10 15:01:53 UTC

Attachments (Terms of Use)

Description Lou Biskup 2002-05-03 20:05:35 UTC
From Bugzilla Helper:
User-Agent: Mozilla/4.72 [en] (X11; U; AIX 4.3)

Description of problem:
Our local network environment requires that we force ethernet adapters to run in
full duplex mode.  This was not a problem with RH 6.2 - all that was necessary
was to put an appropriate options line in /etc/modules.conf.  This doesn't work
on either RH 7.1 or RH 7.2.  Also tried adding an append="ether=0,0,0x50" line
to the stanza for the Linux kernel in /etc/lilo.conf.  Still no help.  Win2K
running on the same box has no problem
running the same adapter in full duplex.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1. Set appropriate parameters in modules.conf or lilo.conf
2. Reboot
3. ftp a 4.5 MB file from another system		 

Actual Results:  ftp throughput of 6.5 to 7.0K per second, indicating duplex
conflict between ethernet adapter and network switch that it is connected to.

Expected Results:  ftp throughput in the vicinity of 1000 K per second.

Additional info:

Comment 1 Jeff Garzik 2002-10-25 16:47:03 UTC
Pass 'options' module parameter to force full duplex.
Or use mii-tool.  Or with a recent eepro100, use 'ethtool' as a third way to
force full duplex.

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