HP procurve series 4100gl Management And Configuration Manual page 284

Port-Based Virtual LANs (VLANs) and GVRP
GVRP
11-44
Enabling and Disabling GVRP on the Switch. This command enables
GVRP on the switch.
Syntax: gvrp
This example enables GVRP:
HPswitch(config)# gvrp
This example disables GVRP operation on the switch:
HPswitch(config)# no gvrp
Enabling and Disabling GVRP On Individual Ports. When GVRP is
enabled on the switch, use the unknown-vlans command to change the
Unknown VLAN field for one or more ports. You can use this command at
either the Manager level or the interface context level for the desired port(s).
interface <port-list> unknown-vlans Changes the Unknown VLAN
Syntax:
<learn | block | disable>
For example, to change and view the configuration for ports A1-A2 to Block:
Figure 11-31. Example of Preventing Specific Ports from Joining Dynamic VLANs
field setting for the specified
port(s).