GVRP
Per-Port Options for Handling GVRP “Unknown VLANs”
Table 3-1. Options for Handling “Unknown VLAN” Advertisements:
Unknown VLAN
Mode
Operation
Learn Enables the port to become a member of any unknown VLAN for which it
(the Default) receives an advertisement. Allows the port to advertise other VLANs that
have at least one other port on the same switch as a member.
Block Prevents the port from joining any new dynamic VLANs for which it receives
an advertisement.
Allows the port to advertise other VLANs that have at least one other port
as a member.
Disable Causes the port to ignore and drop all GVRP advertisements it receives and
also prevents the port from sending any GVRP advertisements.
The CLI show gvrp command and the menu interface VLAN Support screen
show a switch’s current GVRP configuration, including the Unknown VLAN
settings.
GVRP Enabled
(Required for Unknown
VLAN operation.)
Unknown VLAN Settings
Default:
Learn
Figure 3-3. Example of GVRP Unknown VLAN Settings
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