如何实现多交换机VLAN通信

使用eNSP搭建实验环境

实现此案例需要按照如下步骤进行。

1）在二层交换机SW1和SW2上配置VLAN

[SW1]vlan 2
[SW1]vlan 3
[SW1]interface Ethernet0/0/1
[SW1-Ethernet0/0/1]port link-type access 
[SW1-Ethernet0/0/1]port default vlan 1
[SW1]interface Ethernet0/0/2
[SW1-Ethernet0/0/2]port link-type access 
[SW1-Ethernet0/0/2]port default vlan 2
[SW1]interface Ethernet0/0/3
[SW1-Ethernet0/0/3]port link-type access 
[SW1-Ethernet0/0/3]port default vlan 3
[SW1]int g0/0/1
[SW1-GigabitEthernet0/0/1]port link-type trunk
[SW1-GigabitEthernet0/0/1]port trunk allow-pass vlan all
[SW2]vlan 4
[SW2]vlan 5
[SW2]interface Ethernet0/0/1
[SW2-Ethernet0/0/1]port link-type access 
[SW2-Ethernet0/0/1]port default vlan 4
[SW2]interface Ethernet0/0/2
[SW2-Ethernet0/0/2]port link-type access 
[SW2-Ethernet0/0/2]port default vlan 5
[SW2]int g0/0/1
[SW2-GigabitEthernet0/0/1]port link-type trunk
[SW2-GigabitEthernet0/0/1]port trunk allow-pass vlan all

2）配置三层交换机

[SW3]vlan batch 1 to 5
[SW3]int g0/0/1
[SW3-GigabitEthernet0/0/1]port link-type trunk
[SW3-GigabitEthernet0/0/1]port trunk allow-pass vlan all
[SW3]int g0/0/2
[SW3-GigabitEthernet0/0/2]port link-type trunk
[SW3-GigabitEthernet0/0/2]port trunk allow-pass vlan all
[SW3]int Vlanif 1
[SW3-Vlanif1]ip add 192.168.1.254 24
[SW3]int Vlanif 2
[SW3-Vlanif2]ip add 192.168.2.254 24
[SW3]int Vlanif 3
[SW3-Vlanif3]ip add 192.168.3.254 24
[SW3]int Vlanif 4
[SW3-Vlanif1]ip add 192.168.4.254 24
[SW3]int Vlanif 5
[SW3-Vlanif2]ip add 192.168.5.254 24

3）测试PC间互通