Port-Based Virtual LANs (VLANs) and GVRP

Port-Based Virtual LANs (Static VLANs)

Example of Per-Port VLAN Configuration with GVRP Disabled (the default)

Example of Per-Port

VLAN Configuration

with GVRP Enabled

Enabling GVRP causes “No” to display as “Auto”.

Figure 11-5. Comparing Per-Port VLAN Options With and Without GVRPTable 14-1. Per-Port VLAN Configuration Options

Parameter

Effect on Port Participation in Designated VLAN

Tagged

Allows the port to join multiple VLANs.

Untagged

Allows VLAN connection to a device that is configured for an untagged

 

VLAN instead of a tagged VLAN. The switch allows no more than one

 

untagged VLAN assignment per port.

No

- or -

Auto

No: Appears when the switch is not GVRP-enabled; prevents the port from joining that VLAN.

Auto: Appears when GVRP is enabled on the switch; allows the port to dynamically join any advertised VLAN that has the same VID

Forbid

Prevents the port from joining the VLAN, regardless of whether GVRP is

 

enabled on the switch.

 

 

11-8