VLAN及交换机级联

 

<H3C>display interfaceGigabitEthernet 1/0/1    查看端口信息

在交换机上划分VLAN（实现VLAN隔离，PCA--PCCping不通）

[SWA]vlan 10

[SWA -vlan10]port GigabitEthernet 1/0/1

[SWA]vlan 20

[SWA -vlan20]port GigabitEthernet 1/0/2

[SWB]vlan 10

[SWB]vlan 20

[SWB]interface GigabitEthernet 1/0/1

[SWB -GigabitEthernet1/0/1]port access vlan10

[SWB]interface GigabitEthernet 1/0/2

[SWB -GigabitEthernet1/0/2]port access vlan20

配置TRUNK端口（实现跨交换机互通）（同VLAN能ping通）

[SWA]interface GigabitEthernet 1/0/24

[SWA-GigabitEthernet1/0/24]port link-typetrunk

[SWA-GigabitEthernet1/0/24]port trunkpermit vlan 10 20

[SWB]interface GigabitEthernet 1/0/24

[SWB-GigabitEthernet1/0/24]port link-typetrunk

[SWB-GigabitEthernet1/0/24]port trunkpermit vlan 10 20

[SWC]vlan 10

[SWC]vlan 20

[SWC]interface GigabitEthernet 1/0/23

[SWC-GigabitEthernet1/0/23]port link-typetrunk

[SWC-GigabitEthernet1/0/23]port trunkpermit vlan 10 20

[SWC]interface GigabitEthernet 1/0/24

[SWC-GigabitEthernet1/0/24]port link-typetrunk

[SWC-GigabitEthernet1/0/24]port trunkpermit vlan 10 20

配置三层交换机实现VLAN间路由（各台PC之间能够ping通）

[SWC]interface Vlan-interface 10

[SWC-Vlan-interface10]ip address 10.1.1.254255.255.255.0

[SWC]interface Vlan-interface 20

[SWC-Vlan-interface20]ip address 10.1.2.254255.255.255.0