华为三层交换机实现VLAN间通信
三层交换机：
<Huawei>sys
Huawei\]sys SW-3 \[SW-3\]vlan batch 10 20 \[SW-3\]int vlan 10 \[SW-3-Vlanif10\]ip address 192.168.10.254 24 \[SW-3-Vlanif10\]int vlan 20 \[SW-3-Vlanif20\]ip add 192.168.20.254 24 \[SW-3-Vlanif20\]int g0/0/1 \[SW-3-GigabitEthernet0/0/1\]port link-type trunk \[SW-3-GigabitEthernet0/0/1\]port trunk allow-pass vlan all
二层交换机：
<Huawei>sys
Huawei\]vlan batch 10 20 \[Huawei\]int g0/0/1 \[Huawei-GigabitEthernet0/0/1\]port link-type trunk \[Huawei-GigabitEthernet0/0/1\]port trunk allow-pass vlan all \[Huawei-GigabitEthernet0/0/1\]int g0/0/2 \[Huawei-GigabitEthernet0/0/2\]port link-type access \[Huawei-GigabitEthernet0/0/2\]port default vlan 10 \[Huawei-GigabitEthernet0/0/2\]int g0/0/3 \[Huawei-GigabitEthernet0/0/3\]port link-type access \[Huawei-GigabitEthernet0/0/3\]port default vlan 20
Ping测试
