拓扑图

其实很简单，这个就是同步某个设备的VLAN到其他设备，但仅仅是同步，没有什么特别作用，不能配置。

SW1

system-view
gvrp
intereface GigabitEthernet 0/0/1
port link-type trunk
port trunk allow-pass vlan xxx
gvrp 
quit

SW2

system-view
gvrp
intereface GigabitEthernet 0/0/1
port link-type trunk
port trunk allow-pass vlan xxx
gvrp 
quit

intereface GigabitEthernet 0/0/2
port link-type trunk
port trunk allow-pass vlan xxx
gvrp 
quit

SW3

system-view
gvrp
intereface GigabitEthernet 0/0/1
port link-type trunk
port trunk allow-pass vlan xxx
gvrp 
quit