ethtool

Display and modify Network Interface Controller (NIC) parameters.

• Display the current settings for an interface:

ethtool {eth0}

• Display the driver information for an interface:

ethtool --driver {eth0}

• Display all supported features for an interface:

ethtool --show-features {eth0}

• Display the network usage statistics for an interface:

ethtool --statistics {eth0}

• Blink one or more LEDs on an interface for 10 seconds:

ethtool --identify {eth0} {10}

• Set the link speed, duplex mode, and parameter auto-negotiation for a given interface:

ethtool -s {eth0} speed {10|100|1000} duplex {half|full} autoneg {on|off}

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