分类:

1) 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
    eth0 Link encap:Ethernet HWaddr 00:09:6B:09:08:FC
          inet addr:192.168.10.1 Bcast:192.168.10.255 Mask:255.255.255.0
          inet6 addr: fe80::209:6bff:fe09:8fc/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
          RX packets:106732953 errors:0 dropped:0 overruns:0 frame:0
          TX packets:104379788 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100
          RX bytes:2351331877 (2.1 GiB) TX bytes:391707945 (373.5 MiB)
          Base address:0x2500 Memory:fbfe0000-fc000000
   eth1   Link encap:Ethernet HWaddr 00:09:6B:09:08:FD
          BROADCAST MULTICAST MTU:1500 Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
          Base address:0x2540 Memory:fbfc0000-fbfe0000

4)ethtool

#ethtool eth0
Settings for eth0:
        Supported ports: [ MII ]
        Supported link modes:   10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Half 1000baseT/Full
        Supports auto-negotiation: Yes
        Advertised link modes: 10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Half 1000baseT/Full
        Advertised auto-negotiation: Yes
        Speed: 100Mb/s
        Duplex: Full
        Port: Twisted Pair
        PHYAD: 1
        Transceiver: internal
        Auto-negotiation: on
        Supports Wake-on: g
        Wake-on: d
        Current message level: 0x000000ff (255)
        Link detected: yes

#ethtool eth1

Settings for eth1:
        Supported ports: [ MII ]
        Supported link modes:   10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Half 1000baseT/Full
        Supports auto-negotiation: Yes
        Advertised link modes: 10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Half 1000baseT/Full
        Advertised auto-negotiation: Yes
        Speed: Unknown! (0)
        Duplex: Half
        Port: Twisted Pair
        PHYAD: 1
        Transceiver: internal
        Auto-negotiation: on
        Supports Wake-on: g
        Wake-on: d
        Current message level: 0x000000ff (255)
        Link detected: no
从上面可以看出eth0 处于连接状态,eth1没有连接

查看Linux下网卡状态或 是否连接的更多相关文章

  1. 查看Linux下网卡状态或 是否连接(转)

      1) 通过mii-tool指令       [root@localhost root]# mii-tool        eth0: negotiated 100baseTx-FD, link o ...

  2. linux下网卡bonding配置(转)

    linux下网卡bonding配置   章节 bonding技术 centos7配置bonding centos6配置bonding 一.bonding技术 bonding(绑定)是一种linux系统 ...

  3. Linux下网卡混杂模式设置和取消

    工作中发现一个网卡工作状态不对了,查看了一下,发现这个网卡和正常工作的网卡  信息不一样,它显示的居然是混杂模式,而正常工作的是  running 模式 ,所以来了解下混杂模式怎么取消... 下文来自 ...

  4. linux下网卡bonding配置

    linux下网卡bonding配置   章节 bonding技术 centos7配置bonding centos6配置bonding 一.bonding技术 bonding(绑定)是一种linux系统 ...

  5. [转载]linux下网卡漂移导致网络不可用

    转自:https://blog.csdn.net/hyatsz/article/details/47690993 linux下网卡漂移导致网络不可用 2015年08月16日 00:48:50 hyat ...

  6. Linux 下网卡参数配置

    目录 Linux 下网卡参数配置 第一种:修改 interfaces 文件 网卡配置实例 回环参数配置 DHCP方式配置 静态 IP 地址分配 无线网卡配置 March 17, 2015 7:48 P ...

  7. 查看Linux下*.a库文件中文件、函数、变量

    查看Linux下*.a库文件中文件.函数.变量等情况在Linux 下经常需要链接一些 *.a的库文件,那怎么查看这些*.a 中包 含哪些文件.函数.变量: 1. 查看文件:ar -t xxx.a 2. ...

  8. Linux下 网卡测速

    参考: How do I verify the speed of my NIC? Linux下 网卡测速 命令: $ sudo ethtool eth0 Settings for eth0: Supp ...

  9. 查看Linux下系统资源占用常用命令

    一 top命令 1.作用top命令用来显示执行中的程序进程,使用权限是所有用户. 2.格式top [-] [d delay] [q] [c] [S] [s] [i] [n] 3.主要参数d:指定更新的 ...

随机推荐

  1. Servlet开发(一)

    一.Servlet简介 Servlet是sun公司提供的用于开发动态web资源的技术.Sun公司在其API中提供了一个Servlet接口,用户若想开发一个动态web资源(即开发一个java程序向浏览器 ...

  2. 认识JSONP

    jsonp 全称是JSON with Padding 我们大家都知道ajax是不能发起跨域请求,现在可以通过jsonp来弥补ajax的这一缺陷 通过script标签的src属性就可以实现跨域请求.如( ...

  3. eclipse优化配置

    -startup plugins/org.eclipse.equinox.launcher_1..jar --launcher.library plugins/org.eclipse.equinox. ...

  4. Light Bulb--zoj3203(三分法)

    Light Bulb Time Limit: 1 Second      Memory Limit: 32768 KB Compared to wildleopard's wealthiness, h ...

  5. FMDB将对象放进数据库[一]

    @import url(http://i.cnblogs.com/Load.ashx?type=style&file=SyntaxHighlighter.css);@import url(/c ...

  6. Oracle EBS-SQL (BOM-17):检查8层BOM.sql

    define item1="1234567890" select a1.产品编码, a1.产品描述, '1层'         层数, a1.物料编码, a1.物料描述, a1.单 ...

  7. SIEM思考

    https://securosis.com/blog/comments/understanding-and-selecting-siem-log-management-introduction/ ht ...

  8. VC调用javascript的几种方法

    第一种:通过execScript调用.这种方法,虽然操作方便,但不能获取返回值.m_spHtmlDoc->get_parentWindow(&m_pHtmlWindow);VARIANT ...

  9. popen3

    windows版本popen3函数 整理了下10年08月给 fossil 捐的代码  implementation of function “popen2” on win32——参考自 Creatin ...

  10. redhat 安装virtualbox

    1.在官网下载virtual for linux 包,链接地址:https://www.virtualbox.org/wiki/Linux_Downloads.根据需要下载对应镜像. 2.由于下载的包 ...