PC端配置：配置ip地址 配置网关
交换机(左)配置：①创建VLAN
system-view
vlan 10
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
③配置交换机接口
interface gi 1/0/48
port link-type trunk
port trunk permit vlan 10 20
交换机(右)配置：①创建VLAN
system-view
vlan 10
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 20
③配置交换机接口
interface gi 1/0/48
port link-type trunk
port trunk permit vlan 10 20
交换机(中间)配置:
interface gi 1/0/1
port link-type trunk
port trunk permit vlan 10 20
interface gi 1/0/2
port link-type trunk
port trunk permit vlan 10 20
interface gi 1/0/48
port link-type trunk
port trunk permit vlan 10 20
路由器配置:
interface gi 0/0.10
vlan-type dotlq vid 10
ip add 192.168.10.254 24
interface gi 0/0.20
vlan-type dotlq vid 20
ip add 192.168.20.254 24
来源：https://www.cnblogs.com/linzifeng/p/10902699.html