配置周边设备
# 配置接入交换机SwitchA的接口GE0/0/1和GE0/0/2加入VLAN100和VLAN101。
<HUAWEI> system-view
[HUAWEI] sysname SwitchA
[SwitchA] vlan batch 100 101
[SwitchA] interface gigabitethernet 0/0/1
[SwitchA-GigabitEthernet0/0/1] port link-type trunk
[SwitchA-GigabitEthernet0/0/1] port trunk pvid vlan 100
[SwitchA-GigabitEthernet0/0/1] port trunk allow-pass vlan 100 101
[SwitchA-GigabitEthernet0/0/1] port-isolate enable
[SwitchA-GigabitEthernet0/0/1] quit
[SwitchA] interface gigabitethernet 0/0/2
[SwitchA-GigabitEthernet0/0/2] port link-type trunk
[SwitchA-GigabitEthernet0/0/2] port trunk allow-pass vlan 100 101
[SwitchA-GigabitEthernet0/0/2] quit
# 配置汇聚交换机SwitchB的接口GE0/0/1加入VLAN100和VLAN101，GE0/0/2加入VLAN100和VLAN102，GE0/0/3加入VLAN103，GE0/0/4加入VLAN104，创建VLANIF102、VLANIF103和VLANIF104接口，并配置下一跳为Router的缺省路由。
<HUAWEI> system-view
[HUAWEI] sysname SwitchB
[SwitchB] vlan batch 100 to 104
[SwitchB] interface gigabitethernet 0/0/1
[SwitchB-GigabitEthernet0/0/1] port link-type trunk
[SwitchB-GigabitEthernet0/0/1] port trunk allow-pass vlan 100 101
[SwitchB-GigabitEthernet0/0/1] quit
[SwitchB] interface gigabitethernet 0/0/2
[SwitchB-GigabitEthernet0/0/2] port link-type trunk
[SwitchB-GigabitEthernet0/0/2] port trunk allow-pass vlan 100 102
[SwitchB-GigabitEthernet0/0/2] quit
[SwitchB] interface gigabitethernet 0/0/3
[SwitchB-GigabitEthernet0/0/3] port link-type trunk
[SwitchB-GigabitEthernet0/0/3] port trunk pvid vlan 103
[SwitchB-GigabitEthernet0/0/3] port trunk allow-pass vlan 103
[SwitchB-GigabitEthernet0/0/3] quit
[SwitchB] interface gigabitethernet 0/0/4
[SwitchB-GigabitEthernet0/0/4] port link-type trunk
[SwitchB-GigabitEthernet0/0/4] port trunk pvid vlan 104
[SwitchB-GigabitEthernet0/0/4] port trunk allow-pass vlan 104
[SwitchB-GigabitEthernet0/0/4] quit
[SwitchB] interface vlanif 102
[SwitchB-Vlanif102] ip address 10.23.102.1 24
[SwitchB-Vlanif102] quit
[SwitchB] interface vlanif 103
[SwitchB-Vlanif103] ip address 10.23.103.2 24
[SwitchB-Vlanif103] quit
[SwitchB] interface vlanif 104
[SwitchB-Vlanif104] ip address 10.23.104.1 24
[SwitchB-Vlanif104] quit
[SwitchB] ip route-static 0.0.0.0 0.0.0.0 10.23.104.2
# 配置Router的接口GE0/0/1的IP地址，并配置指向STA网段的静态路由。
<Huawei> system-view
[Huawei] sysname Router
[Router] interface gigabitethernet 0/0/1
[Router-GigabitEthernet0/0/1] ip address 10.23.104.2 24
[Router-GigabitEthernet0/0/1] quit
[Router] ip route-static 10.23.101.0 24 10.23.104.1
