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1 先创建如图 的网络拓扑图
1.1 需要设备：
交换机：S5700（1个）、S3700（2个）、
终端：PC（8个）
1.2 按照接口连线：
所有接口已显示
2 配置 交换机
2.1 LSW6：
关闭配置提示：< Huawei > undo terminal monitor
命令行如下（ LSW6 ）：
The device is running!
system-view
Enter system view, return user view with Ctrl+Z.
[Huawei]vlan 10
[Huawei-vlan10]vlan 20
[Huawei-vlan20]vlan 30
[Huawei-vlan30]vlan 40
[Huawei-vlan40]quit
[Huawei]int g0/0/1
[Huawei-GigabitEthernet0/0/1]port link-type trunk
[Huawei-GigabitEthernet0/0/1]port trunk allow-pass vlan all
[Huawei-GigabitEthernet0/0/1]dis this
#
interface GigabitEthernet0/0/1
port link-type trunk
port trunk allow-pass vlan 2 to 4094
#
return
[Huawei-GigabitEthernet0/0/1]int g0/0/2
[Huawei-GigabitEthernet0/0/2]port link-type trunk
[Huawei-GigabitEthernet0/0/2]port trunk allow-pass vlan all
[Huawei-GigabitEthernet0/0/2]q
[Huawei]int vlanif 10
[Huawei-Vlanif10]ip addr 192.14.10.1 24
[Huawei-Vlanif10]int vlanif 20
[Huawei-Vlanif20]ip addr 192.14.20.1 24
[Huawei-Vlanif20]int vlanif 30
[Huawei-Vlanif30]ip addr 192.14.30.1 24
[Huawei-Vlanif30]int vlanif 40
[Huawei-Vlanif40]ip addr 192.14.40.1 24
[Huawei-Vlanif40]q
[Huawei]q
save
The current configuration will be written to the device.
Are you sure to continue?[Y/N]Y
Info: Please input the file name ( *.cfg, *.zip ) [vrpcfg.zip]:
Mar 8 2022 21:43:37-08:00 Huawei %%01CFM/4/SAVE(l)[12]:The user chose Y when de
ciding whether to save the configuration to the device.
Now saving the current configuration to the slot 0.
Save the configuration successfully.
导出设备配置并保存（重点：不保存，下次打开就会出现丢失配置的情况） 
2.2 LSW4、LSW5：
两者命令行一样（注意接口变一下）
代码如下（ LSW4 ）：
The device is running!
system-view
Enter system view, return user view with Ctrl+Z.
[Huawei]vlan 10
[Huawei-vlan10]vlan 20
[Huawei-vlan20]vlan 30
[Huawei-vlan30]vlan 40
[Huawei-vlan40]quit
[Huawei]int g0/0/1
[Huawei-GigabitEthernet0/0/1]port link-type trunk
[Huawei-GigabitEthernet0/0/1]port trunk allow-pass vlan all
[Huawei-GigabitEthernet0/0/1]int e0/0/1
[Huawei-Ethernet0/0/1]port link-type access
[Huawei-Ethernet0/0/1]port def vlan 10
[Huawei-Ethernet0/0/1]int e0/0/2
[Huawei-Ethernet0/0/2]port link-type access
[Huawei-Ethernet0/0/2]port def vlan 10
[Huawei-Ethernet0/0/2]int e0/0/6
[Huawei-Ethernet0/0/6]port link-type access
[Huawei-Ethernet0/0/6]port def vlan 20
[Huawei-Ethernet0/0/6]int e0/0/7
[Huawei-Ethernet0/0/7]port link-type access
[Huawei-Ethernet0/0/7]port def vlan 20
[Huawei-Ethernet0/0/7]q
[Huawei]q
save
The current configuration will be written to the device.
Are you sure to continue?[Y/N]y
Info: Please input the file name ( *.cfg, *.zip ) [vrpcfg.zip]:
Mar 8 2022 22:13:40-08:00 Huawei %%01CFM/4/SAVE(l)[4]:The user chose Y when dec
iding whether to save the configuration to the device.
Now saving the current configuration to the slot 0.
Save the configuration successfully.
代码如下（ LSW5 ）：
The device is running!
system-view
Enter system view, return user view with Ctrl+Z.
[Huawei]vlan 10
[Huawei-vlan10]vlan 20
[Huawei-vlan20]vlan 30
[Huawei-vlan30]vlan 40
[Huawei-vlan40]quit
[Huawei]int g0/0/2
[Huawei-GigabitEthernet0/0/2]port link-type trunk
[Huawei-GigabitEthernet0/0/2]port trunk allow-pass vlan all
[Huawei-GigabitEthernet0/0/1]int e0/0/1
[Huawei-Ethernet0/0/1]port link-type access
[Huawei-Ethernet0/0/1]port def vlan 30
[Huawei-Ethernet0/0/1]int e0/0/2
[Huawei-Ethernet0/0/2]port link-type access
[Huawei-Ethernet0/0/2]port def vlan 30
[Huawei-Ethernet0/0/2]int e0/0/6
[Huawei-Ethernet0/0/6]port link-type access
[Huawei-Ethernet0/0/6]port def vlan 40
[Huawei-Ethernet0/0/6]int e0/0/7
[Huawei-Ethernet0/0/7]port link-type access
[Huawei-Ethernet0/0/7]port def vlan 40
[Huawei-Ethernet0/0/7]q
[Huawei]q
save
The current configuration will be written to the device.
Are you sure to continue?[Y/N]y
Info: Please input the file name ( *.cfg, *.zip ) [vrpcfg.zip]:
Mar 8 2022 22:13:40-08:00 Huawei %%01CFM/4/SAVE(l)[4]:The user chose Y when dec
iding whether to save the configuration to the device.
Now saving the current configuration to the slot 0.
Save the configuration successfully.
3 配置 终端（PC）
【XX：可自己随意设置】
VLAN 10:
PC1（192.XX.10.2）
PC2（192.XX.10.3）
VLAN 20:
PC3（192.XX.20.2）
PC4（192.XX.20.3）
VLAN 30:
PC4（192.XX.30.2）
PC5（192.XX.30.3）
VLAN 40:
PC6（192.XX.40.2）
PC7（192.XX.40.3）
4 验证 （ping命令）
此处用 vlan 30 中的 PC6（192.XX.40.2）
分别 ping vlan 10 和 vlan 40
结果 ping 通 配置完成！
5 补充 （部分命令意义）
如果网关设置错了 先删除再配置
可用命令 undo ip addr
 
导出设备配置并保存（重点：不保存，下次打开就会出现丢失配置的情况）
小编就曾因为没有保存导出配置
而重新配置过好几次 引以为戒啊！！！
最后的最后 如有问题 欢迎各位指正！！！
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