ethtool  command

Post date: May 06, 2013 12:20:58 AM

ethtool is used for querying settings of an ethernet device and chang- ing them. 

ethX is the name of the ethernet device to work on.

[root@sachi network-scripts]# ethtool eth0

Settings for eth0:

Supported ports: [ TP MII ]

Supported link modes:   10baseT/Half 10baseT/Full 

                       100baseT/Half 100baseT/Full 

                       1000baseT/Half 1000baseT/Full 

Supports auto-negotiation: Yes

Advertised link modes:  10baseT/Half 10baseT/Full 

                       100baseT/Half 100baseT/Full 

                       1000baseT/Half 1000baseT/Full 

Advertised pause frame use: No

Advertised auto-negotiation: Yes

Link partner advertised link modes:  10baseT/Half 10baseT/Full 

                                    100baseT/Half 100baseT/Full 

Link partner advertised pause frame use: No

Link partner advertised auto-negotiation: Yes

Speed: 100Mb/s

Duplex: Full

Port: MII


Transceiver: internal

Auto-negotiation: on

Supports Wake-on: pumbg

Wake-on: g

Current message level: 0x00000033 (51)

Link detected: yes