1-4GVRPGVRP enables a device to propagate local VLAN registration information to other participant devicesand dynamically update the VLAN registration information from other devices to its local databaseabout active VLAN members and through which port they can be reached. It thus ensures that allGVRP participants on a bridged LAN maintain the same VLAN registration information. The VLANregistration information propagated by GVRP includes both manually configured local static entries anddynamic entries from other devices.GVRP provides the following three registration types on a port:z Normal––Enables the port to dynamically register and deregister VLANs, and to propagate bothdynamic and static VLAN information.z Fixed––Disables the port to dynamically register and deregister VLANs or propagate informationabout dynamic VLANs, but allows the port to propagate information about static VLANs. A trunkport with fixed registration type thus allows only manually configured VLANs to pass through eventhough it is configured to carry all VLANs.z Forbidden––Disables the port to dynamically register and deregister VLANs and to propagateVLAN information except information about VLAN 1. A trunk port with forbidden registration typethus allows only VLAN 1 to pass through even though it is configured to carry all VLANs.Protocols and StandardsGVRP is described in IEEE 802.1Q.GVRP Configuration Task ListComplete these tasks to configure GVRP:Task RemarksConfiguring GVRP Functions RequiredConfiguring GARP Timers Optionalz GVRP configuration made in Ethernet interface view or Layer-2 aggregate interface view takeseffect on the current interface only; .GVRP configuration made in port group view takes effect on allthe member ports in the group.z GVRP configuration made on a member port in an aggregation group takes effect only after theport is removed from the aggregation group.Configuring GVRP FunctionsBefore enabling GVRP on a port, you must enable GVRP globally.Follow these steps to configure GVRP functions on a trunk port:
