8.2 VLAN

1.SW1、SW2创建VLAN

[SW1]vlan batch 10 20
[SW2]vlan batch 10 20

2.将PC1、PC2、PC3所连接口设置为access模式,划入相应VLAN

[SW1]interface GigabitEthernet 0/0/3
[SW1-GigabitEthernet0/0/3]port link-type access 
[SW1-GigabitEthernet0/0/3]port default vlan 10
[SW1-GigabitEthernet0/0/3]quit
[SW1]interface GigabitEthernet 0/0/4
[SW1-GigabitEthernet0/0/4]port link-type access 
[SW1-GigabitEthernet0/0/4]port default vlan 20

[SW2]interface GigabitEthernet 0/0/3
[SW2-GigabitEthernet0/0/3]port link-type access 
[SW2-GigabitEthernet0/0/3]port default vlan 20

3.聚合端口设置成Trunk模式,允许所有VLAN通过

[SW1]interface Eth-Trunk 1
[SW1-Eth-Trunk1]port link-type trunk 
[SW1-Eth-Trunk1]port trunk allow-pass vlan all

[SW2]interface Eth-Trunk 1
[SW2-Eth-Trunk1]port link-type trunk 
[SW2-Eth-Trunk1]port trunk allow-pass vlan all

4.显示VLAN信息

 [SW1]display vlan
10   common  UT:GE0/0/3(U)                                                      
             TG:Eth-Trunk1(U)                                                   
20   common  UT:GE0/0/4(U)                                                      
             TG:Eth-Trunk1(U)     
1    enable  default       enable  disable    VLAN 0001                         
10   enable  default       enable  disable    VLAN 0010                         
20   enable  default       enable  disable    VLAN 0020 

5.连通性测试,同一个网段的可以互相通信

PC1>ping 192.168.20.3
Ping 192.168.20.3: 32 data bytes, Press Ctrl_C to break

PC1>ping 192.168.10.1
Ping 192.168.10.1: 32 data bytes, Press Ctrl_C to break
From 192.168.20.2: Destination host unreachable
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