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linux下用mii-tool和ethtool 查看网线是否正确连接到网卡

时间：2016-07-22 23:04:09   收藏：0   阅读：2029

输入mii-tool可以查看网线是否连接到网卡
#mii-tool

  1. eth0: negotiated 100baseTx-FD, link ok

有时驱动可能不支持会出错下列错误
#mii-tool

  1. SIOCGMIIPHY on ‘eth0‘ failed: Operation not supported
  2. no MII interfaces found

可以使用ethtool查看
#ethtool eth0

  1. Settings for eth0:
  2.         Supported ports: [ TP ]
  3.         Supported link modes:   10baseT/Half 10baseT/Full
  4.                                 100baseT/Half 100baseT/Full
  5.                                 1000baseT/Full
  6.         Supports auto-negotiation: Yes
  7.         Advertised link modes:  10baseT/Half 10baseT/Full
  8.                                 100baseT/Half 100baseT/Full
  9.                                 1000baseT/Full
  10.         Advertised auto-negotiation: Yes
  11.         Speed: 100Mb/s
  12.         Duplex: Full
  13.         Port: Twisted Pair
  14.         PHYAD: 0
  15.         Transceiver: internal
  16.         Auto-negotiation: on
  17.         Supports Wake-on: pumbg
  18.         Wake-on: g
  19.         Current message level: 0x00000033 (51)
  20.         Link detected: yes

Link detected: yes为正常no为失败

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