SMC Networks TigerSwitch 100 - Manual (Page 274)

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Example
The following example shows how to add VLANs 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 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.
Console(config)#interface ethernet 1/1
Console(config-if)#switchport allowed vlan add 2,5,6 tagged
Console(config-if)#