diff --git "a/09\350\203\241\344\275\263\346\254\243/20240511-\347\254\224\350\256\26020 \344\270\211\345\261\202\344\272\244\346\215\242\346\234\272+vlan.md" "b/09\350\203\241\344\275\263\346\254\243/20240511-\347\254\224\350\256\26020 \344\270\211\345\261\202\344\272\244\346\215\242\346\234\272+vlan.md"
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index 0000000000000000000000000000000000000000..72348af9be3be0cfd2861442840d89f2a695545b
--- /dev/null
+++ "b/09\350\203\241\344\275\263\346\254\243/20240511-\347\254\224\350\256\26020 \344\270\211\345\261\202\344\272\244\346\215\242\346\234\272+vlan.md"	
@@ -0,0 +1,172 @@
+## 三层交换机
+
+```ht
+三层交换机的vlan配置IP，当作网关使用认的是vlan的ID，而不是物理接口
+```
+
+
+
+![202405011三层交换机vlan作业](image/202405011三层交换机vlan作业.PNG)
+
+```ht
+交换机：
+
+Switch>en
+Switch#conf t
+
+Switch(config)#int f 0/2
+Switch(config-if)#sw acc vlan 10
+
+Switch(config-if)#int f 0/3
+Switch(config-if)#sw acc vlan 20
+
+Switch(config-if)#int f 0/1
+Switch(config-if)#sw mode trunk
+ 
+```
+
+```h
+三层交换机：
+Switch>en 
+Switch#conf t
+    
+Switch(config)#vlan 10
+Switch(config-vlan)#vlan 20
+    
+Switch(config-vlan)#int f 0/1
+Switch(config-if)#sw acc vlan 10
+Switch(config-if)#sw acc vlan 20
+    
+Switch(config-if)#int f 0/2
+Switch(config-if)#sw acc vlan 10
+    
+Switch(config-if)#int vlan 10
+Switch(config-if)#ip address 192.168.1.254 255.255.255.0
+    
+Switch(config-if)#int vlan 20
+Switch(config-if)#ip address 192.168.2.254 255.255.255.0
+Switch(config-if)#ip routing
+ 
+```
+
+## 改错题
+
+![202405011改错作业](image/202405011改错作业.PNG)
+
+```
+错误点：
+interface GigabitEthernet0/1.10
+ encapsulation dot1Q 30
+ //将vlan10的封装口错误对换了
+ ip address 172.17.10.1 255.255.255.0
+ shutdown
+ //G0/1.10口未打开
+!
+interface GigabitEthernet0/1.30
+ encapsulation dot1Q 10
+  //将vlan30的封装口错误对换了
+ ip address 172.17.30.1 255.255.255.
+```
+
+```ht
+修改：
+ //将错误的vlan30与vlan10封装删除
+R1(config)#int g 0/1.10
+R1(config-subif)#no shutdown
+R1(config-subif)#no encapsulation dot1q 30  
+
+R1(config)#int g 0/1.30
+R1(config-subif)#no shutdown
+R1(config-subif)#no encapsulation dot1q 10  
+
+
+//再将正确的vlan10与vlan30封装输入,并配置IP
+R1(config)#int g 0/1.10
+R1(config-subif)# encapsulation dot1q 10  
+R1(config-subif)# ip address 172.17.10.1
+
+
+R1(config)#int g 0/1.30
+R1(config-subif)#no encapsulation dot1q 10 
+R1(config-subif)# ip address 172.17.30.1
+```
+
+## OSPF练习题1：
+
+![202405011OSPF练习作业](image/202405011OSPF练习作业.PNG)
+
+```ht
+R1:
+Router>EN
+Router#CONF T
+Router(config)#
+Router(config)#int f 0/0
+Router(config-if)#no shut
+Router(config-if)#ip address 192.18.21.1 255.255.255.240
+Router(config-if)#int f 0/1
+Router(config-if)#no shut
+Router(config-if)#ip address 192.168.21.17 255.255.255.240
+Router(config-if)#ex
+telne远程登录：
+Router(config)#int f 0/0
+Router(config-if)#host R1
+R1(config)#ip domain-name ohovxo.online
+How many bits in the modulus [512]: 2048
+R1(config)#ip ssh v 2
+R1(config)#line vty 0 4
+R1(config-line)#login local
+R1(config-line)#transport input all
+R1(config-line)#exit
+R1(config)#username hhh password 123456
+R1(config)#enable password 666
+R1(config)#end
+ 
+OSPF：
+R1(config)#int f 0/1
+R1(config-if)#router ospf 1
+R1(config-router)#net 192.168.21.0 0.0.0.15 area 0
+R1(config-router)#net 192.168.21.16 0.0.0.15 area 0
+R1(config-router)#do show ip route
+ 
+```
+
+```h
+R2:Router>en
+Router#conf t
+Router(config)#int f 0/0
+Router(config-if)#no shut
+Router(config-if)#int f 0/1
+Router(config-if)#no shut
+ 
+单臂路由：
+Router(config-subif)#int f 0/0.1
+Router(config-subif)#encapsulation dot1q 11
+Router(config-subif)#ip address 192.168.21.129 255.255.255.240
+Router(config-subif)#int f 0/0.2
+Router(config-subif)#encapsulation dot1q 21
+Router(config-subif)#ip address 192.168.21.200 255.255.255.240
+
+OSPF：
+Router(config)#int f 0/1
+Router(config-if)#router ospf 1
+Router(config-router)#net 192.168.21.0 0.0.0.15 area 0
+Router(config-router)#net 192.168.21.16 0.0.0.15 area 0
+Router(config-router)#net 192.168.21.128 0.0.0.15 area 0
+Router(config-router)#net 192.168.21.192 0.0.0.15 area 0
+```
+
+```ht
+SW1:
+Switch>en
+Switch#conf t
+Enter configuration commands, one per line.  End with CNTL/Z.
+Switch(config)#int f 0/2
+Switch(config-if)#sw acc vlan 11
+% Access VLAN does not exist. Creating vlan 11
+Switch(config-if)#int f 0/3
+Switch(config-if)#sw acc vlan 21
+% Access VLAN does not exist. Creating vlan 21
+Switch(config-if)#int f 0/1
+Switch(config-if)#sw mode trunk
+```
+
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