RedHat 9 Force full duplex

Linux and Unix-Like Red Hat
1

All,

I have a RedHat 9 box which I need to figure out how to get it to stay in full duplex mode after a reboot.

I have tried

ethtool -s eth0 speed 100 duplex full autoneg off

I have tried to add a line to the /etc/sysconfig/network-scripts/ifcfg-eth0 like this:

ETHTOOL_OPTS="speed 100 duplex full autoneg off"

It does not work.

Anybody have any ideas?

Thanks,

Mike

2

I'm confused. The "stay" implies that you can but it forgets after a reboot, except, the line below seems to say that you've never gotten it into full duplex.

Could you try adding it to local.start?

3

All,

I have a RedHat 9 box which I need to figure out how to make full duplex mode persistent after a reboot. It defaults back to 100/Half duplex with autonegotiate.

Thanks,

Mike

4

That's just repeating yourself. Could you clarify?

Have you managed to get the card to do anything but 100/half, at all, ever?

Are you saying that "ethtool -s eth0 speed 100 duplex full autoneg off", works, doesn't work, sometimes works, or only works in certain situations?

5

Can you execute

ethtool -s eth0 speed 100 duplex full autoneg off

then post the output of

ethtool eth0

Cheers
ZB