把vlan 10、vlan 20加入到交换机接口：
system-view
vlan 10
vlan 20
quit
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
quit
interface gi 1/0/48 //配置级联口
port link-type trunk //把接口配置为trunk模式
port trunk permit vlan 10 20 //允许vlan 10、vlan 20通过接口
把vlan 10、vlan 20加入到交换机接口：
system-view
vlan 10
vlan 20
quit
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
quit
interface gi 1/0/48 //配置级联口
port link-type trunk //把接口配置为trunk模式
port trunk permit vlan 10 20 //允许vlan 10、vlan 20通过接口
来源：https://www.cnblogs.com/cn-2/p/11876586.html
