华为三层交换机实现VLAN间通信
三层交换机：
<Huawei>sys
Huaweisys SW-3
SW-3vlan batch 10 20
SW-3int vlan 10
SW-3-Vlanif10ip address 192.168.10.254 24
SW-3-Vlanif10int vlan 20
SW-3-Vlanif20ip add 192.168.20.254 24
SW-3-Vlanif20int g0/0/1
SW-3-GigabitEthernet0/0/1port link-type trunk
SW-3-GigabitEthernet0/0/1port trunk allow-pass vlan all
二层交换机：
<Huawei>sys
Huaweivlan batch 10 20
Huaweiint g0/0/1
Huawei-GigabitEthernet0/0/1port link-type trunk
Huawei-GigabitEthernet0/0/1port trunk allow-pass vlan all
Huawei-GigabitEthernet0/0/1int g0/0/2
Huawei-GigabitEthernet0/0/2port link-type access
Huawei-GigabitEthernet0/0/2port default vlan 10
Huawei-GigabitEthernet0/0/2int g0/0/3
Huawei-GigabitEthernet0/0/3port link-type access
Huawei-GigabitEthernet0/0/3port default vlan 20
Ping测试
