ethtool

Display and modify Network Interface Controller (NIC) parameters. More information: https://manned.org/ethtool.

  • 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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