Linux网卡速度及模式设置
29 Mar 2013Ethtool命令
摘要
ethtool ethX #查询ethX网口基本设置
ethtool –h #显示ethtool的命令帮助(help)
ethtool –i ethX #查询ethX网口的相关信息
ethtool –d ethX #查询ethX网口注册性信息
ethtool –r ethX #重置ethX网口到自适应模式
ethtool –S ethX #查询ethX网口收发包统计
ethtool –s ethX [speed 10|100|1000] #设置网口速率10/100/1000M
[duplex half|full] #设置网口半/全双工
[autoneg on|off] #设置网口是否自协商
[port tp|aui|bnc|mii] #设置网口类型
[phyad N]
[xcvr internal|exteral]
[wol p|u|m|b|a|g|s|d...]
[sopass xx:yy:zz:aa:bb:cc]
[msglvl N]
举例
[[email protected] /]# ethtool eth1
可能的返回值
Settings for eth1:
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: 1000Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 0
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: umbg
Wake-on: d
Link detected: yes
[[email protected] /]# ethtool -i eth1
可能的返回值
driver: e1000
version: 5.0.43-k1
firmware-version: N/A
bus-info: 06:08.1
[[email protected] /]# ethtool -S eth1
可能的返回值
NIC statistics:
rx_packets: 58068300
tx_packets: 87124083
rx_bytes: 1589713008
tx_bytes: 2165825901
rx_errors: 0
tx_errors: 0
rx_dropped: 0
tx_dropped: 0
multicast: 0
collisions: 0
rx_length_errors: 0
rx_over_errors: 0
rx_crc_errors: 0
rx_frame_errors: 0
rx_fifo_errors: 0
rx_missed_errors: 0
tx_aborted_errors: 0
tx_carrier_errors: 0
tx_fifo_errors: 0
tx_heartbeat_errors: 0
tx_window_errors: 0
[[email protected] /]# ethtool -s eth1 autoneg off speed 100 duplex full
相关问题
怎样使ethtool设置永久保存在网络设备中？
- 解决方法一: ethtool设置可通过/etc/sysconfig/network-scripts/ifcfg-ethX文件保存,从而在设备下次启动时激活选项。 例如：ethtool -s eth0 speed 100 duplex full autoneg off 此指令将eth0设备设置为全双工自适应，速度为100Mbs。若要eth0启动时设置这些参数, 修改文件/etc/sysconfig/network-scripts/ifcfg-eth0 ，添加如下一行: ETHTOOL_OPTS=”speed 100 duplex full autoneg off”
- 解决方法二: 将ethtool设置写入/etc/rc.d/rc.local之中。
ref : http://blog.chinaunix.net/u/1676/showart_1717971.html