如图所示，HOSTA和HOSTB、HOSTC和HOSTD分属研发部和质量部，两部门通过一台二层交换机互联，两部门有业务往来，需要二层隔离，三层通信。配置思路：1.将SwitchB连接终端HOST的接口加入vlan，链路类型为access，2.将SwitchA和SwitchB互联的接口加入vlan，链路类型为trunk，3.创建VLANIF并配置IP地址为对应用户的网关；
工具/原料
华为交换机
SwitchA配置
1、创建vlan <SWITCHA>system-view //进入系统模式[SWITCHA]vlan batch 2 3 //批量新建vlan 2 和3
2、创建vlanif三层接口作为PC电脑的网关IP地址[SWITCHA] interface Vlanif 2 //进入三层vlanif10接口[SWITCHA-Vl锾攒揉敫anif2] ip address 1.1.1.1 255.255.255.0 //此IP地址为HOSTA/B对应网关地址[SWITCHA-Vlanif2] quit //退出vlanif2接口[SWITCHA] interface Vlanif 3[SWITCHA-Vlanif3] ip address 2.2.2.1 255.255.255.0 //此IP地址为HOSTC/D对应网关地址[SWITCHA-Vlanif3] quit
3、接口加入相应vlan，SwitchA----颍骈城茇-trunk------SwitchB[SWITCHA] interface GigabitEthernet 0/0/1[SWITCHA-Gig锾攒揉敫abitEthernet0/0/1] port link-type trunk //链路类型为trunk[SWITCHA-GigabitEthernet0/0/1] port trunk allow-pass 2 to 3 //将接口划分到VLAN 2和vlan3中[SWITCHA-GigabitEthernet0/0/1] quit
SwitchB配置
1、创建vlan<SWITCHB> system-view //进入系统模式[SWITCHB] vlan batch 2 3 //批量新建vlan 2 和3
2、接口加入相应vlan，SwitchB----颍骈城茇-trunk------SwitchA[SWITCHB] interface GigabitEthernet 0/0/1 [SWITCHB-Gi爿讥旌护gabitEthernet0/0/1] port link-type trunk //链路类型为trunk[SWITCHB-GigabitEthernet0/0/1] port trunk allow-pass 2 to 3 //将接口划分到VLAN 2和vlan3中[SWITCHB-GigabitEthernet0/0/1] quit
3、接口加入相应vlan，SwitchB---access---HOST，HOSTA和HOSTB配置一样[SWITCHB] interface Ethernet 0/0/2[SWITCHB-Ethernet0/0/2] port link-type access //链路类型为access[SWITCHB-Ethernet0/0/2] port default vlan 2 //将HOSTA划分到vlan2中[SWITCHB-Ethernet0/0/2] quit
4、接口加入相应vlan，SwitchB---access---HOST，HOSTC和HOSTD配置一样，C和D配置一样[SWITCHB] interface Ethernet 0/0/4[SWITCHB-Ethernet0/0/4] port link-type access //链路类型为access[SWITCHB-Ethernet0/0/4] port default vlan 3 //将HOSTC划分到vlan3中[SWITCHB-Ethernet0/0/3] quit
