Dell N3200-ON EMC Networking N-Series Switches CLI Reference Guide version 6.7 - Page 899

switchport general forbidden vlan Use the switchport general forbidden vlan command in Interface Configuration mode to forbid adding specific VLANs to a general mode port. To revert to allowing the addition of specific VLANs to the port, use the remove parameter of this command. Syntax switchport general forbidden vlan {add vlan-list | remove vlan-list} • add vlan-list - List of valid VLAN IDs to add to the forbidden list. Separate nonconsecutive VLAN IDs with a comma and no spaces. Use a hyphen to designate a range of IDs. • remove vlan-list - List of valid VLAN IDs to remove from the forbidden list. Separate nonconsecutive VLAN IDs with a comma and no spaces. Use a hyphen to designate a range of IDs. Default Configuration All VLANs allowed. Command Mode Interface Configuration (Ethernet and port channel) mode User Guidelines This configuration only applies to ports configured in general mode. It is possible to configure the general mode VLAN membership of a port while the port is in access or trunk mode. Doing so does not change the VLAN membership of the port until it is configured to be in general mode. Example The following example forbids adding VLAN numbers 234 through 256 to port 1/0/8. console(config)#interface gigabitethernet 1/0/8 console(config-if-Gi1/0/8)#switchport general forbidden vlan add 234-256 Layer 2 Switching Commands 899