LINUX: How To Check Speed, Auto Negotiation & Link Detection Settings Of Network Bond / Interface In Linux? ("ethtool" command)

Following ethtool command can be used for check speed, Auto negotiation and Link Detection settings for Network bond / interface in Linux

ethtool <bond / interface>

Below is example snippet of above command.

# ethtool bond0
Settings for bond0:
Supported ports: [ ]
Supported link modes:   Not reported
Supported pause frame use: No
Supports auto-negotiation: No
Advertised link modes:  Not reported
Advertised pause frame use: No
Advertised auto-negotiation: No
Speed: 10000Mb/s
Duplex: Full
Port: Other
PHYAD: 0
Transceiver: internal
Auto-negotiation: off
Link detected: yes

Products to which Article Applies

All Linux Operating Systems

Additional References

http://landoflinux.com/linux_ethtool_command.html
https://www.thegeekstuff.com/2010/10/ethtool-command

tarun boyella