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