usage: mii-tool [-VvRrwl] [-A media,... | -F media] [interface ...]
-V 显示版本信息;
-v 显示网络接口的信息;
-R 重设MII到开启状态;
-r 重启自动协商模式;
-w 查看网络接口连接的状态变化;
-l 写入事件到系统日志;
-A 指令特定的网络接口;
-F 更改网络接口协商方式;
media: 100baseT4, 100baseTx-FD, 100baseTx-HD, 10baseT-FD, 10baseT-HD,
(to advertise both HD and FD) 100baseTx, 10baseT
[root@localhost ~]# mii-tool -v eth0
eth0: negotiated 100baseTx-FD, link ok
product info: vendor 00:50:ef, model 60 rev 8
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
[root@localhost ~]# mii-tool -F 100baseTx-FD
[root@localhost ~]# mii-tool -v eth0
eth0: 100 Mbit, full duplex, link ok
product info: vendor 00:00:00, model 0 rev 0
basic mode: 100 Mbit, full duplex
basic status: link ok
capabilities: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
advertising: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
[root@localhost ~]# ethtool -s eth0 speed 100 duplex full