117According to the output above, information about VLAN 1 and static VLAN information of VLAN3 on the local router are registered through GVRP, but dynamic VLAN information of VLAN 2 onDevice A is not.GVRP forbidden registration mode configuration exampleNetwork requirementsAs shown in Figure 43, Device A and Device B are connected through their GigabitEthernet 4/1/1ports.Enable GVRP and configure the forbidden registration mode on ports to prevent the registration of allVLANs but VLAN 1 between the two routers.Figure 43 Network diagramConfiguration procedure1. Configure Device A:# Enable GVRP globally. system-view[DeviceA] gvrp# Configure port GigabitEthernet 4/1/1 as a trunk port, and assign it to all VLANs.[DeviceA] interface GigabitEthernet 4/1/1[DeviceA-GigabitEthernet4/1/1] port link-type trunk[DeviceA-GigabitEthernet4/1/1] port trunk permit vlan all# Enable GVRP on GigabitEthernet 4/1/1, and set the GVRP registration mode to forbidden onthe port.[DeviceA-GigabitEthernet4/1/1] gvrp[DeviceA-GigabitEthernet4/1/1] gvrp registration forbidden[DeviceA-GigabitEthernet4/1/1] quit# Create VLAN 2 (a static VLAN).[DeviceA] vlan 2[DeviceA-vlan2] quit2. Configure Device B:# Enable GVRP globally. system-view[DeviceB] gvrp# Configure port GigabitEthernet 4/1/1 as a trunk port, and assign it to all VLANs.[DeviceB] interface GigabitEthernet 4/1/1[DeviceB-GigabitEthernet4/1/1] port link-type trunk[DeviceB-GigabitEthernet4/1/1] port trunk permit vlan all# Enable GVRP on GigabitEthernet 4/1/1, and set the GVRP registration mode to forbidden onthe port.[DeviceB-GigabitEthernet4/1/1] gvrp[DeviceB-GigabitEthernet4/1/1] gvrp registration forbidden