X722的端口在OS下识别，下面使用2*10GE+2*GE的网卡在RHEL 7.5系统下为例进行说明。

1. 以root用户登录服务器OS，单击鼠标右键，选择“Open Terminal”打开命令行。
2. 执行如下命令，查看X722的网卡设备（PCIe function）。

   lspci | grep -i X722

   回显如下类似信息：

   1a:00.0 Ethernet controller: Intel Corporation Ethernet Connection X722 for 10GBASE-T (rev 09)
   1a:00.1 Ethernet controller: Intel Corporation Ethernet Connection X722 for 10GBASE-T (rev 09)
   1a:00.2 Ethernet controller: Intel Corporation Ethernet Connection X722 for 1GbE (rev 09)
   1a:00.3 Ethernet controller: Intel Corporation Ethernet Connection X722 for 1GbE (rev 09)

   如果是老版本的OS，如Ubuntu14.04.5、Ubuntu16.04系统执行如下命令找到对应的intel设备。

   lspci | grep -i eth

   回显如下类似信息：

   1a:00.0 Ethernet controller: Intel Corporation Device 37d0 (rev 08)
   1a:00.1 Ethernet controller: Intel Corporation Device 37d0 (rev 08)
   1a:00.2 Ethernet controller: Intel Corporation Device 37d1 (rev 08)
   1a:00.3 Ethernet controller: Intel Corporation Device 37d1 (rev 08)

3. 执行如下命令，查询到X722的4个NIC端口。

   ifconfig -a

   如果ifconfig -a命令查询不到网口信息，说明驱动未安装，请参考安装和卸载驱动进行驱动安装。

   X722的4个NIC端口以“eno[num]/eth[num]”的形式显示，如回显中的“eno1”、“eno2”、“eno3”和“eno4”。

   eno1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
           inet 172.168.16.122  netmask 255.255.0.0  broadcast 172.168.255.255
           inet6 fe80::1d38:9b9c:4384:2085  prefixlen 64  scopeid 0x20<link>
           ether c4:b8:b4:63:8a:3d  txqueuelen 1000  (Ethernet)
           RX packets 8201760  bytes 651951002 (621.7 MiB)
           RX errors 0  dropped 53961  overruns 0  frame 0
           TX packets 119095  bytes 10583662 (10.0 MiB)
           TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
   eno2: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
           ether c4:b8:b4:63:8a:3e  txqueuelen 1000  (Ethernet)
           RX packets 8082746  bytes 642277804 (612.5 MiB)
           RX errors 0  dropped 53961  overruns 0  frame 0
           TX packets 0  bytes 0 (0.0 B)
           TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
   eno3: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
           ether c4:b8:b4:63:8a:3f  txqueuelen 1000  (Ethernet)
           RX packets 0  bytes 0 (0.0 B)
           RX errors 0  dropped 0  overruns 0  frame 0
           TX packets 0  bytes 0 (0.0 B)
           TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
   eno4: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
           ether c4:b8:b4:63:8a:40  txqueuelen 1000  (Ethernet)
           RX packets 0  bytes 0 (0.0 B)
           RX errors 0  dropped 0  overruns 0  frame 0
           TX packets 0  bytes 0 (0.0 B)        

   如果执行命令后，返回没有这个命令，需要安装net-tools工具包。

4. 执行如下命令，查看端口信息。

   ethtool -i eno[num]/eth[num]

   如查看eno1的端口信息，命令为：ethtool -i eno1

   回显如下类似信息：

   driver: i40e
   version: 2.7.12
   firmware-version: 3.33 0x80000e89 255.65535.255
   expansion-rom-version:
   bus-info: 0000:1a:00.0
   supports-statistics: yes
   supports-test: yes
   supports-eeprom-access: yes
   supports-register-dump: yes
   supports-priv-flags: yes

   如果执行命令后，返回没有这个命令，需要安装net-tools工具包。