VLAN Management
GVRP Settings
Cisco Small Business 300 Series Managed Switch Administration Guide  118
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The Port VLAN Membership page displays the operational membership of the 
ports or LAGs:
• Port number.
• Mode—Port mode defined in the Interface Settings Page.
• PVID—Port VLAN Identifier of the VLAN to which incoming untagged frames 
are assigned at ingress. This assumes that no other VLAN assignment 
mechanism is used, such as MAC-based-VLAN.
• VLANs—VLAN to which the port belongs.
GVRP Settings
Adjacent VLAN-aware devices can exchange VLAN information with each other 
by using Generic VLAN Registration Protocol (GVRP). GVRP is based on the 
Generic Attribute Registration Protocol (GARP) and propagates VLAN information 
throughout a bridged network.
Since GVRP requires support for tagging, the port must be configured in Trunk 
mode or General mode. 
When a port joins a VLAN by using GVRP, it is added to the VLAN as a dynamic 
member, unless this was expressly forbidden in the VLAN To Port Page. If the 
VLAN does not exist, it is dynamically created when Dynamic VLAN creation is 
enabled for this port.
GVRP must be activated globally as well as on each port. When it is activated, it 
transmits and receives GARP Packet Data Units (GPDUs). VLANs that are defined 
but not active are not propagated. To propagate the VLAN, it must be up on at least 
one port.
Defining GVRP Settings
To define GVRP settings for an interface:
STEP 1 Click VLAN Management > GVRP Settings. The GVRP Settings Page opens. 
STEP  2 Select GVRP Global Status to enable GVRP globally.
STEP  3 Click Apply to set the global GVRP status.