Network card and network card driver management software under Linux system--ethtool

Source code download: https://git.kernel.org/pub/scm/network/ethtool/ethtool.git
Description:
ethtool allows to query or control network drivers and hardware settings, especially for wired Ethernet devices, is used for query and commands for setting network card parameters.
use:

  	ethtool ethx 查询ethx网口基本设置，其中 x 是对应网卡的编号，如eth0、eth1等等
    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] [duplex half|full] [autoneg on|off] 设置网口速率 10/100/1000M、设置网口半/全双工、设置网口是否自协商