SMC Networks SMC6724L3 Switchport forbidden vlan, No VLANs are included in the forbidden list

VLAN COMMANDS

•If a VLAN on the forbidden list for an interface is manually added to that interface, the VLAN is automatically removed from the forbidden list for that interface.

Example

The following example shows how to add VLANs 1, 2, 5 and 6 to the allowed list as tagged VLANs for port 1:

Console(config)#interface ethernet 1/1 Console(config-if)#switchport allowed vlan add 1,2,5,6 tagged Console(config-if)#

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-listremove vlan-list}no switchport forbidden vlan

•add vlan-list- List of VLAN identifiers to add.

•remove vlan-list- List of VLAN identifiers to remove.

•vlan-list- Separate nonconsecutive VLAN identifiers with a comma and no spaces; use a hyphen to designate a range of IDs. Do not enter leading zeros. (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.

•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.

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