linux下查看网线是否正确连接到网卡
输入mii-tool可以查看网线是否连接到网卡
//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!
#mii-tool
- eth0: negotiated 100baseTx-FD, link ok
有时驱动可能不支持会出错下列错误
#mii-tool
- SIOCGMIIPHY on 'eth0' failed: Operation not supported
- no MII interfaces found
可以使用ethtool查看
#ethtool eth0
- Settings for eth0:
- Supported ports: [ TP ]
- Supported link modes: 10baseT/Half 10baseT/Full
- 100baseT/Half 100baseT/Full
- 1000baseT/Full
- Supports auto-negotiation: Yes
- Advertised link modes: 10baseT/Half 10baseT/Full
- 100baseT/Half 100baseT/Full
- 1000baseT/Full
- Advertised auto-negotiation: Yes
- Speed: 100Mb/s
- Duplex: Full
- Port: Twisted Pair
- PHYAD: 0
- Transceiver: internal
- Auto-negotiation: on
- Supports Wake-on: pumbg
- Wake-on: g
- Current message level: 0x00000033 (51)
- Link detected: yes
Link detected: yes为正常no为失败
三.[root@linuxzgf ~]# /etc/init.d/network status
配置设备:
lo eth0 eth0.10 eth0.2 eth0.3 eth0.4 eth0.5 eth0.7 eth0.8 eth1
当前的活跃设备:
lo eth0 eth0.10
Linux 下查看網卡工作速度
# dmesg |grep eth0
divert: allocating divert_blk for eth0
eth0: RealTek RTL8139 at 0xd800, 00:80:48:34:c2:84, IRQ 9
eth0: Identified 8139 chip type 'RTL-8100B/8139D'
divert: freeing divert_blk for eth0
divert: allocating divert_blk for eth0
eth0: RealTek RTL8139 at 0xd800, 00:90:44:34:a5:33, IRQ 9
eth0: Identified 8139 chip type 'RTL-8100B/8139D'
eth0: link up, 100Mbps, full-duplex, lpa 0x41E1
eth0: no IPv6 routers present
...
# mii-tool -v eth0
eth0: negotiated 100baseTx-FD, link ok
product info: vendor 00:00:00, model 0 rev 0
basic mode: autonegotiation enabled
basic status: autonegotiation complete, link ok
capabilities: 100baseTx-FD 100baseTx-HD 10baseT-FD
10baseT-HD
...
# ethtool eth0
Settings for eth0:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Advertised auto-negotiation: Yes
Speed: 100Mb/s
Duplex: Full
Port: MII
PHYAD: 32
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: pumbg
Wake-on: p
Current message level: 0x00000007 (7)
Link detected: yes