142 CHAPTER 7: B RIDGE P ORT PARAMETERSLayer 2SwitchingModules3 MultilayerSwitchingModulesbridge port gvrpState Allows ports on Multilayer Switching Modules to send and receive GARPVLAN Registration Protocol (GVRP) updates, which can help simplify themanagement of IEEE 802.1Q VLAN configurations.Valid Minimum Abbreviationb po gImportant Considerationsn You can use this command to configure the same setting on multipleports simultaneously. When you specify multiple port numbers, themodule prompts you to choose the setting and then applies it to all ofthe ports.n To activate GVRP on your module ports, you must enable it for theentire bridge (see “bridge gvrpState”in Chapter 6) as well as onindividual bridge ports (this command). If you enable GVRP on a portbut you have not enabled it for the bridge, GVRP does not function.n To maximize the effectiveness of GVRP, it should be enabled in asmany end stations and network devices as possible.n GVRP updates are not sent to any blocked Spanning Tree Protocol(STP) ports. GVRP operates only on ports that are in the forwardingstate.n If GVRP is enabled on the bridge and on a given port which changesto the STP forwarding state, the port automatically begins toparticipate in GVRP.n VLANs that are created dynamically with GVRP exist only as long as aGVRP-enabled device is sending updates — if the devices no longersend updates, if GVRP is disabled, or if the module is rebooted, alldynamic VLANs are removed, but the module leaves unchanged allVLANs that were statically configured through a managementinterface.OptionsPrompt Description Possible Values [Default]Bridge ports Bridge ports for which youwish to enable or disable theGVRP staten enablen disabledisable
