I can not disable the auto-negotiation (eth1) on my centos 6.2 via ethtool or /etc/sysconfig/network-scripts/ifcfg-eth1 the eth1 is a private network on a cheap gigabit-switch (under controll from a serverhoster). sometime the ethernet-card lost the "speed" and "duplex" information and change it to "unknown". i can only fix this with a network-restart (or ifup/ifdown). now i will disable the autonegotiation - but i does not work. thanks sebastian
On 20 March 2012 14:29, sebastian <centos at secretusenet.com> wrote:> I can not disable the auto-negotiation (eth1) on my centos 6.2 via > ethtool or /etc/sysconfig/network-scripts/ifcfg-eth1 >Autonegotiation is mandatory for 1000BASE-T as both sides have to work out which pairs they are going to use. Check: 1)cable 2)switchport if those are ok then you probably have a driver/NIC problem mike