Re: Using sysconfig or the command line to change nic speed and duplex settings I was in Expert mode. The nic is set to 10 Mb's half duplex. Here's the commands I used. ifdown eth0 'take the interface down ethtool -s eth0 speed 100 duplex full autoneg off 'make the changes ifup 'bring the interface up ethtool eth0 'check the interface settings next i tried. ifdown eth0 mii -tool -F 100baseTx-FD eth0 ifup etho ethtool eth0 next i tried, editing the ifcfg-eth0 file by adding this line to the end of the file. ethtool_opts="speed 100 duplex full autoneg off" And, then restarted the server. None of these attempts worked. Ethtool showed the interface was still set to 10 Mb's half duplex, and I still had collisions occuring. uname -r returns 2.4.21-20cp Do these commands work on your SPLAT box? |