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