Mii-tool (this command specifically sets the NIC working mode in linux)

Mii-tool (this is a command specifically used to set the NIC working mode in linux)-Linux Enterprise Application-Linux server application information. For details, see the following. 1. view the NIC working mode and enter the following command:

# Mii-tool-v
Eth0: negotiated 100basetx-fd, link OK
Product info: vendor 00: aa: 00, model 56 rev 0
Basic mode: autonegotiation enabled
Basic status: autonegotiation complete, link OK
Capabilities: 100basetx-fd 100basetx-hd 10baset-fd 10baset-hd
Advertising: 100basetx-fd 100basetx-hd 10baset-fd 10baset-hd flow-control
Link partner: 100basetx-fd 100basetx-hd 10baset-fd 10baset-hd

From the above information, we can see that this network card works in 100 m full duplex adaptive mode, "basetx-fd" means m full duplex.

2. Change the NIC working mode and enter the following command:
# Mii-tool-f media [interface]

Media optional modes include 100basetx-fd, 100basetx-hd, 10baset-fd, and 10baset-hd. Interface indicates the selected Nic, such as eth0 and eth1. The default value is eth0.

For example, to set the NIC to work in 10 M half duplex mode, enter the following command:
# Mii-tool-f 10baset-hd eth0

3. Restore the adaptive working mode of the Network Adapter. Enter the following command:
# Mii-tool-r eth0

You can use mii-tool-h for more detailed usage.