ETHTOOL(8)

NAME
ethtool - Display or change ethernet card setting

SYNOPSIS
ethtool ethX ethtool -h ethtool -s ethX [ speed { 10,100,1000 } ] [ duplex { half,full } ] [ port { tp,aui,mii,fibre } ] [ autoneg { on,off } ] [ phyad N ] [ xcvr { internal,external } ]

DESCRIPTION
ethtool Is used for querying setting of an ethernet device and changing it. ethX is the name of the ethernet device to work on.

OPTIONS
ethtool with a single argument specifying the device name prints current setting of the specified device.

-h  shows a short help message.

-s  option allows changing some or all settings of the specified ethernet device. All following options only apply if -s was specified.

speed
    Set speed in Mb/s. ethtool with single argument will show you the supported device speeds.

duplex
    Set full or half duplex mode.

port
    Select device port.

autoneg
    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.

phyad
    Physical address. Not used yet.

xcvr
    Select transceiver type. Currently only internal and external can be specified, in the future further types might be added.

BUGS
Currently supported by Sun Happy Meal Ethernet only.

AUTHOR
ethtool has been written by David Miller <davem@redhat.com>. Manual page written by Jakub Jelinek <jakub@redhat.com>.

AVAILABILITY
ethtool is available for anonymous ftp from sunsite.mff.cuni.cz in /OS/Linux/Sparc/local/ethtool/. Master copy of the sources is available on vger.kernel.org