Linux常用命令库
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mii-tool
mii-tool === 配置网络设备协商方式的工具 ## 补充说明 **mii-tool命令** 是用于查看、管理介质的网络接口的状态,有时网卡需要配置协商方式,比如10/100/1000M的网卡半双工、全双工、自动协商的配置。但大多数的网络设备是不用我们来修改协商,因为大多数网络设置接入的时候,都采用自动协商来解决相互通信的问题。不过自动协商也不是万能的,有时也会出现错误,比如丢包率比较高,这时就要我们来指定网卡的协商方式。mii-tool就是能指定网卡的协商方式。下面我们说一说mii-tool的用法。 ### 语法 ```shell usage: mii-tool [-VvRrwl] [-A media,... | -F media] [interface ...] ``` ### 选项 ```shell -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 ``` ### 实例 查看网络接口的协商状态: ```shell [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 ``` 注:上面的例子,我们可以看得到是自动协商,注意红字的部份。 更改网络接口协商方式: 更改网络接口的协商方式,我们要用到`-F`选项,后面可以接100baseT4, 100baseTx-FD, 100baseTx-HD, 10baseT-FD, 10baseT-HD等参数; 如果我们想把网络接口eth0改为1000Mb/s全双工的模式应该怎么办呢? ```shell [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 ``` 注:是不是已经改过来了?当然,我们也一样用ethtool工具来更改,比如执行下面的命令: ```shell [root@localhost ~]# ethtool -s eth0 speed 100 duplex full ```
admin
2022年9月16日 07:00
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