实验五内容
交换机配置：
交换机（下）：
system-view
vlan 10
vlan 20
vlan 30
vlan 40
interface gi 1/0/1
port link-type access
port access vlan 10
interface gi 1/0/2
port link-type access
port access vlan 20
interface gi 1/0/3
port link-type access
port access vlan 30
interface gi 1/0/4
port link-type access
port access vlan 40
interface gi 1/0/48
port link-type trunk
port trunk permit vlan 10 20 30 40
交换机（上）：
system-view
vlan 10
vlan 20
vlan 30
vlan 40
interface Bridge-Aggregation 1
quit
interface range gi 1/0/46 to 1/0/48
port link-mode bridge
port link-aggregation group 1
quit
interface Bridge-Aggregation 1
port link-type trunk
port trunk permit vlan all
路由器配置：
system-view
vlan 10
vlan 20
vlan 30
vlan 40
interface Bridge-Aggregation 1
quit
interface range gi 1/0/0 to 1/0/3
port link-mode bridge
port link-aggregation group 1
quit
interface Bridge-Aggregation 1
port link-type trunk
port trunk permit vlan all