1-5To do… Use the command… RemarksEnter Ethernetinterface view orLayer 2 aggregateinterface viewinterface interface-typeinterface-numberEnter Ethernetinterface view,Layer 2aggregateinterface view,or port-groupview Enter port-groupviewport-group manualport-group-nameRequiredPerform either of thecommands.Enable GVRP on the port or portgroup gvrp RequiredDisabled by default.Configure the GVRP registrationmode on the port or port groupgvrp registration { fixed |forbidden | normal }OptionalThe default is normal.z GVRP can be configured only on trunk ports.z GVRP is mutually exclusive with service loopback.z In an MSTP network, GVRP can run on only the CIST. In addition, blocked ports on the CISTcannot receive/send GVRP packets.z If both GVRP and remote port mirroring are used, GVRP may register the remote probe VLAN tounexpected ports, resulting in undesired duplicates to be received by the monitor port. For moreinformation about port mirroring, refer to Port Mirroring Configuration in the Access Volume.z Enabling GVRP on a Layer 2 aggregate interface enables both the aggregate interface and allselected member ports in the corresponding link aggregation group to participate in dynamic VLANregistration and deregistration.z On a GVRP-enabled trunk port, you need to configure the port trunk permit vlan all command onthe port to ensure that the traffic of all dynamically registered VLANs can pass through the port.Configuring GARP TimersAmong the four GARP timers, the LeaveAll timer is configured in system view and takes effect on allports, while the other three are configured on a port basis.Follow these steps to configure GARP timers:To do… Use the command… RemarksEnter system view system-view ––Configure the GARP LeaveAlltimergarp timer leavealltimer-valueOptionalThe default is 1000centiseconds.