1.top图

2.交换机配置
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sysname sw1
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vlan batch 10
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interface GigabitEthernet0/0/1port link-type trunkport trunk allow-pass vlan 10
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interface GigabitEthernet0/0/2port link-type trunkport trunk allow-pass vlan 10 
 
sys sw2
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vlan batch 10  
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interface GigabitEthernet0/0/1  port link-type accessport default vlan 10port-isolate enable group 1   
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interface GigabitEthernet0/0/2  port link-type accessport default vlan 10port-isolate enable group 1   
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interface GigabitEthernet0/0/10  port link-type trunkport trunk allow-pass vlan 10 
sys sw3
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vlan batch 10  
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interface GigabitEthernet0/0/1  # 连接PC3port link-type accessport default vlan 10
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interface GigabitEthernet0/0/2  # 连接PC4port link-type accessport default vlan 10
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interface GigabitEthernet0/0/10port link-type trunkport trunk allow-pass vlan 10
 
 
3.ping

