查看Linux下网卡状态

ip link 命令   或者 通过mii-tool指令

             [root@localhost root]# mii-tool
               eth0: negotiated 100baseTx-FD, link ok
               eth1: no link
             或
             [root@localhost root]# mii-tool -v
               eth0: negotiated 100baseTx-FD, link ok
                   product info: vendor 00:50:43, model 2 rev 3
                   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
               eth1: no link
                   product info: vendor 00:50:43, model 2 rev 3
                   basic mode:     autonegotiation enabled
                   basic status: no link
                   capabilities: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
                   advertising: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD flow-control
             或
           [root@localhost root]# mii-tool -w
             21:20:33 eth0: negotiated 100baseTx-FD, link ok
             21:20:33 eth1: no link

      //mii-tool主要是用于配置网卡工作模式的指令，同时也可以进行查询、监控等工作！

  
   2)
     [root@localhost /]# /etc/init.d/network status
      Configured devices:
      lo eth0 eth1
      Currently active devices:
      lo eth0
     等同于
     [root@localhost root]# service --status-all
      ............
      ............
      Configured devices:
      lo eth0 eth1
      Currently active devices:
      lo eth0
      ............
      ............
   3)ifconfig -a
    [root@localhost /]# ifconfig -a