PC端配置：配置ip地址
交换机配置：①创建VLAN
system-view
vlan10
vlan 20
②配置PC端接口
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 10
interface gi 1/0/3
port link-type access
port access vlan 20
interface gi 1/0/4
port link-type access
port access vlan 20