vlan实现主机通信

通过vlan实现pc1和pc2以及pc5通信，pc1和pc3以及pc4不能通信

 1.将pc1 ，pc2，pc5划入vlan10

　 将pc3和pc4划入vlan20

    vlan 10 20

在交换机1上操作：

[Huawei]interface GigabitEthernet 0/0/1
[Huawei-GigabitEthernet0/0/3]port link-type access
[Huawei-GigabitEthernet0/0/3]port default vlan 10

[Huawei]interface GigabitEthernet 0/0/2
[Huawei-GigabitEthernet0/0/3]port link-type access
[Huawei-GigabitEthernet0/0/3]port default vlan 10

[Huawei]interface GigabitEthernet 0/0/3
[Huawei-GigabitEthernet0/0/3]port link-type access
[Huawei-GigabitEthernet0/0/3]port default vlan 20

交换机互联接口G0/0/4配置为trunk　

[Huawei]interface GigabitEthernet 0/0/4
[Huawei-GigabitEthernet0/0/4]port link-type trunk
[Huawei-GigabitEthernet0/0/4]port trunk allow-pass vlan all

在交换机2上面的操作

[Huawei]interface GigabitEthernet 0/0/1
[Huawei-GigabitEthernet0/0/3]port link-type access
[Huawei-GigabitEthernet0/0/3]port default vlan 20

[Huawei]interface GigabitEthernet 0/0/2
[Huawei-GigabitEthernet0/0/3]port link-type access
[Huawei-GigabitEthernet0/0/3]port default vlan 10

[Huawei]interface GigabitEthernet 0/03
[Huawei-GigabitEthernet0/0/4]port link-type trunk
[Huawei-GigabitEthernet0/0/4]port trunk allow-pass vlan all

2.就实现了上述功能