配置vlan
[SwitchA]vlan 10 to 20
採用動態聚合模式：創建二層聚合接口，並配置動態聚合模式
[SwitchA] interface bridge-aggregation 1
[SwitchA-Bridge-Aggregation1] link-aggregation mode dynamic
[SwitchA-Bridge-Aggregation1] quit
# 分別將端口GigabitEthernet1/0/1至GigabitEthernet1/0/3加入到聚合組1中。
[SwitchA] interface gigabitethernet 1/0/1
[SwitchA-GigabitEthernet1/0/1] port link-aggregation group 1
[SwitchA-GigabitEthernet1/0/1] quit
[SwitchA] interface gigabitethernet 1/0/2
[SwitchA-GigabitEthernet1/0/2] port link-aggregation group 1
[SwitchA-GigabitEthernet1/0/2] quit
[SwitchA] interface gigabitethernet 1/0/3
[SwitchA-GigabitEthernet1/0/3] port link-aggregation group 1
[SwitchA-GigabitEthernet1/0/3] quit
# 配置二層聚合接口1爲Trunk端口，並允許VLAN 10和VLAN 20的報文通過。
[SwitchA] interface bridge-aggregation 1
[SwitchA-Bridge-Aggregation1] port link-type trunk
[SwitchA-Bridge-Aggregation1] port trunk permit vlan 10 20
Please wait... Done.
Configuring GigabitEthernet 1/0/1... Done.
Configuring GigabitEthernet 1/0/2... Done.
Configuring GigabitEthernet 1/0/3... Done.
[SwitchA-Bridge-Aggregation1] quit
2. Switch B的配置
Switch B上的配置與Switch A完全相同，此處不再贅述。
兩個交換機連接網線
display link-aggregation verbose