查看GV Orbit网卡支持的传输速率的方法

GV Orbit系统中已经安装了ethtool工具，所以可以使用ethtool来查看网卡支持的传输速率等详细属性

具体步骤

1. 使用ifconfig查看系统所有网卡信息，找到你想具体查看的网卡。
   比如，运行ifconfig后发现有一个叫做p4p1的网卡

p4p1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.12  netmask 255.255.255.0  broadcast 192.168.1.255
        inet6 fe80::1e12:57d5:29bb:6ca1  prefixlen 64  scopeid 0x20<link>
        inet6 2408:8207:242e:3b70:fc3a:8444:70ae:39ff  prefixlen 64  scopeid 0x0<global>
        ether 64:00:6a:03:b2:73  txqueuelen 1000  (Ethernet)
        RX packets 39185  bytes 4753825 (4.5 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 29149  bytes 9122968 (8.7 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

ifconfig -a可以查看所有网卡，包括未启用的网卡

2. 运行ethtool p4p1来看网卡支持的传输速率

[nick@bogon ~]$ ethtool p4p1
Settings for p4p1:
        Supported ports: [ TP MII ]
        Supported link modes:   10baseT/Half 10baseT/Full 
                                100baseT/Half 100baseT/Full 
                                1000baseT/Half 1000baseT/Full 
        Supported pause frame use: No
        Supports auto-negotiation: Yes
        Supported FEC modes: Not reported
        Advertised link modes:  10baseT/Half 10baseT/Full 
                                100baseT/Half 100baseT/Full 
                                1000baseT/Full 
        Advertised pause frame use: Symmetric Receive-only
        Advertised auto-negotiation: Yes
        Advertised FEC modes: Not reported
        Link partner advertised link modes:  10baseT/Half 10baseT/Full 
                                             100baseT/Half 100baseT/Full 
        Link partner advertised pause frame use: Symmetric
        Link partner advertised auto-negotiation: Yes
        Link partner advertised FEC modes: Not reported
        Speed: 100Mb/s
        Duplex: Full
        Port: MII
        PHYAD: 0
        Transceiver: internal
        Auto-negotiation: on
Cannot get wake-on-lan settings: Operation not permitted
        Current message level: 0x00000033 (51)
                               drv probe ifdown ifup
        Link detected: yes