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+##### 作业一
+
+![image-20240511170356937](./imgs/05111.png)
+
+```C#
+R1>en
+R1#conf t
+R1(config)#int g0/1.10
+R1(config-subif)#no shu
+R1(config-subif)#no enc d 30
+R1(config-subif)#enc d 10
+R1(config-subif)#ip add 172.17.10.1 255.255.255.0
+R1(config-subif)#int g0/1.30
+R1(config-subif)#no enc d 10
+R1(config-subif)#enc d 30
+R1(config-subif)#ip add 172.17.30.1 255.255.255.0
+
+```
+
+![image-20240511170455224](./imgs/05112.png)
+
+作业二
+
+![image-20240511165624862](./imgs/05113.png)
+
+- 二层交换机
+
+  ```c#
+  Switch>en
+  Switch#conf t
+  Switch(config)#int f0/2
+  Switch(config-if)#swi acc vlan 10
+  Switch(config-if)#int f0/3
+  Switch(config-if)#swi acc vlan 20
+  Switch(config-if)#int f0/1
+  Switch(config-if)#swi m t
+  ```
+
+- 三层交换机
+
+  ```C#
+  Switch>en
+  Switch#conf t
+  Switch(config)#int f0/1
+  Switch(config-if)#swi t e d
+  Switch(config-if)#vlan 10
+  Switch(config-vlan)#vlan 20
+  Switch(config-vlan)#int vlan 10
+  Switch(config-if)#ip add 192.168.1.254 255.255.255.0
+  Switch(config-if)#int vlan 20
+  Switch(config-if)#ip add 192.168.2.254 255.255.255.0
+  Switch(config-if)#ex
+  Switch(config)#ip routing
+  Switch(config)#int f0/2
+  Switch(config-if)#swi acc vlan 10
+   
+  ```
+
+  ![image-20240511170656359](./imgs/05114.png)
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