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| Centos检测网卡状态 |
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由于ifconfig命令没法看到网卡的一些状态， 以下有5种方法查看网卡状态，是否连通网线 How to check physical Network Link Status on Linux (RHEL/Centos) 原文：http://linuxsupporttips.wordpress.com/2011/08/01/how-to-check-physical-network-link-status-on-linux-rhelcentos/ There are several ways to check Link status on RHEL, As far i used to check by 5- ways. Refer Below 1) # dmesg | grep eth ..... e1000: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: None e1000: eth1 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: None 2) # mii-tool eth0: negotiated 100baseTx-FD, link ok eth1: negotiated 100baseTx-FD, link ok 3) # ethtool eth0 | grep Link Link detected: yes 4) # cat /sys/class/net/eth0/operstate up 5) # ip link show 2: eth0: mtu 1500 qdisc pfifo_fast qlen 1000 link/ether 00:0c:29:b0:ef:e4 brd ff:ff:ff:ff:ff:ff 3: eth1: mtu 1500 qdisc pfifo_fast qlen 1000 link/ether 00:0c:29:b0:ef:ee brd ff:ff:ff:ff:ff:ff |
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