介绍VRP命令：
[Huawei] -------------系统视图
[Huawei]quit ---------退出-----是逐层退出。
[AR1]return ----------退出 ，不是逐层退出，直接退到用户视图
[Huawei]sysname JSNJ-QYT-CORE-ROUTER-------做项目按照设备的实际用途命名
[JSNJ-QYT-CORE-ROUTER]
[AR1]display current-configuration -----检查正在配置的内容
[AR1]display saved-configuration
There is no correct configuration file in FLASH ---------没有保存的配置
[AR1]
The current configuration will be written to the device.
Are you sure to continue? (y/n)[n]:y
It will take several minutes to save configuration file, please wait.......
Configuration file had been saved successfully
Note: The configuration file will take effect after being activated
This will delete the configuration in the flash memory.
The device configuratio
ns will be erased to reconfigure.
Are you sure? (y/n)[n]:y
Clear the configuration in the device successfully.
配置IP地址
[AR1]interface GigabitEthernet 0/0/0 -----------进入接口
[AR1-GigabitEthernet0/0/0]ip address 12.1.1.1 24
或者
[AR1-GigabitEthernet0/0/0]ip address 12.1.1.1 255.255.255.0 、
注意：如果地址配置错误，可以覆盖配置，不需要undo掉
如果需要undo,配置如下：
[AR2-GigabitEthernet0/0/0]undo ip address 12.1.1.20 255.255.255.0
检查配置IP地址是否正确
[AR1]display ip interface brief
*down: administratively down
^down: standby
(l): loopback
(s): spoofing
The number of interface that is UP in Physical is 3
The number of interface that is DOWN in Physical is 3
The number of interface that is UP in Protocol is 3
The number of interface that is DOWN in Protocol is 3
Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 12.1.1.1/24 up up
GigabitEthernet0/0/1 unassigned down down
GigabitEthernet0/0/2 unassigned down down
[AR2-GigabitEthernet0/0/0]display this ------------查看当前的配置
[V200R003C00]
#
interface GigabitEthernet0/0/0
ip address 12.1.1.20 255.255.255.0
完成直连接口配置以后，需要测试直连的连通性
[AR2]ping 12.1.1.1
PING 12.1.1.1: 56 data bytes, press CTRL_C to break
Reply from 12.1.1.1: bytes=56 Sequence=1 ttl=255 time=120 ms
Reply from 12.1.1.1: bytes=56 Sequence=2 ttl=255 time=20 ms
Reply from 12.1.1.1: bytes=56 Sequence=3 ttl=255 time=20 ms
Reply from 12.1.1.1: bytes=56 Sequence=4 ttl=255 time=10 ms
Reply from 12.1.1.1: bytes=56 Sequence=5 ttl=255 time=20 ms
--- 12.1.1.1 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 10/38/120 ms
注意点：
1. 注意配置的掩码，直连是否在同一个网段。
2. 广播地址和网段地址是不能在接口上的。这些不能作为可用地址
3. 一定直连的连通性