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COMMAND LINE INTERFACE
Example
The following example shows how to add VLANs 2, 5 and 6 to the allowed list as tagged VLANs for port 1:
Console(config)#interface ethernet 1/1
switchport forbidden vlan
Use this command to configure forbidden VLANs. Use the no form to remove the list of forbidden VLANs.
Syntax
•switchport forbidden vlan {add
•add
•remove
•
Default Setting
No VLANs are included in the forbidden list.
Command Mode
Interface Configuration (Ethernet, Port Channel)
Command Usage
•This command prevents a VLAN from being automatically added to the specified interface via GVRP.
•If a VLAN has been added to the set of allowed VLANs for an interface, then you cannot add it to the set of forbidden VLANs for that same interface.