[CentOS] ethtool

m.roth at 5-cent.us m.roth at 5-cent.us
Tue Sep 28 16:27:35 EDT 2010

Paul Heinlein wrote:
> On Tue, 28 Sep 2010, m.roth at 5-cent.us wrote:
>> We've just moved one a new server from our sever room, where I built
>> it, to the datacenter. We want to force autoneg off, and tell it
>> gigabit and full duplex. Using ethtool, I get no errors setting the
>> speed or duplex. HOWEVER, autoneg on works... and autoneg off
>> utterly refuses to work, and gives:
>> ethtool -s eth0 autoneg off
>> Cannot set new settings: Invalid argument
>>  not setting autoneg
> Did you turning off autoneg at the same time you set the speed and
> duplex?
>    ethtool -s eth0 speed 1000 duplex full autoneg off

That was where I started. And I also tried putting autoneg off first....


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