VLAN C
OMMANDS
3-103
Example
The following example shows how to add VLANs 1, 2, 5, and 6 to
the allowed list as tagged VLANs for port 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 vlan-list | remove vlan-list}
no switchport forbidden vlan
•add vlan-list - List of VLAN IDs to add.
•remove vlan-list - List of VLAN IDs to remove.
Separate nonconsecutive VLAN IDs with a comma and no
spaces; use a hyphen to designate a range of IDs. Do not enter
leading zeroes. (Range:1-4094)
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.
Example
The following example shows how to prevent port 1 from being
added to VLAN 3:
Console(config)#interface ethernet 1/1
Console(config-if)#switchport allowed vlan add 1,2,5,6 tagg ed
Console(config-if)#
Console(config)#interface ethernet 1/1
Console(config-if)#switchport forbidden vlan add 3
Console(config-if)#