Switchport Forbidden Vlan - Dell PowerConnect 5424 Command Line Interface Manual

User Guidelines
• There are no user guidelines for this command.
Example
The following example configures g8 to discard untagged frames at ingress.
Console (config)# interface ethernet g8
Console (config-if)# switchport general acceptable-frame-type
tagged-only

switchport forbidden vlan

The switchport forbidden vlan Interface Configuration mode command forbids adding specific VLANs
to a port. This may be used to prevent GVRP from automatically making these VLANs active on the
selected ports. To revert to allowing the addition of specific VLANs to the port, use the remove
parameter for this command.
Syntax
• switchport forbidden vlan {add vlan-list | remove vlan-list}
• add vlan-list — List of VLAN IDs to add to the "forbidden" list. Separate non consecutive VLAN
IDs with a comma and no spaces. A hyphen designates a range of IDs.
• remove vlan-list — List of VLAN IDs to remove from the "forbidden" list. Separate non
consecutive VLAN IDs with a comma and no spaces. A hyphen designates a range of IDs.
Default Configuration
All VLANs allowed.
Command Mode
Interface Configuration (Ethernet, port-channel) mode.
User Guidelines
• There are no user guidelines for this command.
Example
The following example forbids adding VLANs number 234 till 256, to g8.
Console (config)# interface ethernet g8
Console (config-if)# switchport forbidden vlan add 234-256
459
VLAN Commands