How To Configure Ethernet Card into 1000Mb/s Speed on Linux?
Posted on February 8, 2007
Use ethtool - Display or change [tag]ethernet[/tag] card settings. ethtool is used for querying settings of an ethernet device and changing them.
To set the interface speed, duplex or auto negotiation on Linux system:
# ethtool -s eth1 speed 1000 duplex full autoneg off
-s option allows changing some or all settings of the
specified ethernet device. All following options only
apply if -s was specified.
speed 10|100|1000
Set speed in Mb/s. ethtool with single argument
will show you the supported device speeds.
duplex half|full
Set full or half duplex mode.
port tp|aui|bnc|mii
Select device port.
autoneg on|off
Specify if autonegotiation is enabled. In the usual
case it is, but might cause some problems with
some network devices, so you can turn it off.
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