Linux网络设备相关

　　1、ethtool：query or control network driver and hardware settings

　　1）简介：ethtool用于查询和控制网络设备驱动和硬件（特别是有线的以太网设备）的设置。

　　2）选项：-i：查询指定设备的驱动信息；-S：查询指定设备的统计信息（rx_packets、rx_bytes等）；只指定设备时，打印其当前设置：

[[email protected] ~]# ethtool ens33
Settings for ens33:
        Supported ports: [ TP ]
        Supported link modes:   10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Full
        Supported pause frame use: No
        Supports auto-negotiation: Yes
        Advertised link modes:  10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Full
        Advertised pause frame use: No
        Advertised auto-negotiation: Yes
        Speed: 1000Mb/s
        Duplex: Full
        Port: Twisted Pair
        PHYAD: 0
        Transceiver: internal
        Auto-negotiation: on
        MDI-X: off (auto)
        Supports Wake-on: d
        Wake-on: d
        Current message level: 0x00000007 (7)
                               drv probe link
        Link detected: yes

不断学习中。。。