Dell PowerSwitch S4820T Configuration Guide for the S4820T System 9.112.0P1 - Page 341

Enabling GVRP Globally To configure GVRP globally, use the following command. • Enable GVRP for the entire switch. CONFIGURATION mode gvrp enable Example of Configuring GVRP Dell(conf)#protocol gvrp Dell(config-gvrp)#no disable Dell(config-gvrp)#show config ! protocol gvrp no disable Dell(config-gvrp)# To inspect the global configuration, use the show gvrp brief command. Enabling GVRP on a Layer 2 Interface To enable GVRP on a Layer 2 interface, use the following command. • Enable GVRP on a Layer 2 interface. INTERFACE mode gvrp enable Example of Enabling GVRP on an Interface Dell(conf-if-te-1/21)#switchport Dell(conf-if-te-1/21)#gvrp enable Dell(conf-if-te-1/21)#no shutdown Dell(conf-if-te-1/21)#show config ! interface TenGigabitEthernet 1/21 no ip address switchport gvrp enable no shutdown To inspect the interface configuration, use the show config command from INTERFACE mode or use the show gvrp interface command in EXEC or EXEC Privilege mode. Configure GVRP Registration Configure GVRP registration. There are two GVRP registration modes: • Fixed Registration Mode - figuring a port in fixed registration mode allows for manual creation and registration of VLANs, prevents VLAN deregistration, and registers all VLANs known on other ports on the port. For example, if an interface is statically configured via the CLI to belong to a VLAN, it should not be unconfigured when it receives a Leave PDU. Therefore, the registration mode on that interface is FIXED. • Forbidden Mode - Disables the port to dynamically register VLANs and to propagate VLAN information except information about VLAN 1. A port with forbidden registration type thus allows only VLAN 1 to pass through even though the PDU carries information for more VLANs. Therefore, if you do not want the interface to advertise or learn about particular VLANS, set the interface to the registration mode of FORBIDDEN. GARP VLAN Registration Protocol (GVRP) 341