首先配置PCIP地址，掩码，网关
SW1
[SW1]vlan batch 10 20
[SW1]int g0/0
[SW1-GigabitEthernet0/0/1]port link-type access
[SW1-GigabitEthernet0/0/1]port default vlan 10
[SW1-GigabitEthernet0/0/2]port link-type access
[SW1-GigabitEthernet0/0/2]port default vlan 20
[SW1-GigabitEthernet0/0/3]port link-type trunk
[SW1-GigabitEthernet0/0/3]port trunk allow-pass vlan 10 20
[SW1]int Vlanif 10
[SW1-Vlanif10]ip add 192.168.10.254 24
[SW1]int Vlanif 20
[SW1-Vlanif20]ip add 192.168.20.254 24
SW2
[SW2]vlan batch 10 20
[SW2]int g0/0
[SW2-GigabitEthernet0/0/1]port link-type access
[SW2-GigabitEthernet0/0/1]port default vlan 20
[SW2-GigabitEthernet0/0/1]int g0/0/2
[SW2-GigabitEthernet0/0/2]port link-type access
[SW2-GigabitEthernet0/0/2]po
[SW2-GigabitEthernet0/0/2]port def
[SW2-GigabitEthernet0/0/2]port default v
[SW2-GigabitEthernet0/0/2]port default vlan 10
[SW2-GigabitEthernet0/0/3]port link-type trunk
[SW2-GigabitEthernet0/0/3]port trunk allow-pass vlan 10 20
最后通过PC1pingPC3，互通
实验完成