Administrator Guide

Layer 2 Switching Commands 827
Example
The following example configures 1/0/8 to discard untagged frames at ingress.
console(config)#interface gigabitethernet 1/0/8
console(config-if-Gi1/0/8)#switchport general acceptable-frame-type tagged-
only
switchport general allowed vlan
Use the switchport general allowed vlan command in Interface
Configuration mode to add VLANs to or remove VLANs from a general port.
Syntax
switchport general allowed vlan add vlan-list [tagged | untagged]
switchport general allowed vlan remove vlan-list
• add vlan-list — List of VLAN IDs to add. Separate nonconsecutive VLAN
IDs with a comma and no spaces. Use a hyphen to designate a range of
IDs.
• 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.
• tagged — Sets the port to transmit tagged packets for the VLANs. If the
port is added to a VLAN without specifying tagged or untagged, the
default is untagged.
• untagged — Sets the port to transmit untagged packets for the VLANs.
Default Configuration
Untagged.
Command Mode
Interface Configuration (Ethernet and port channel) mode
User Guidelines
Use this command to change the egress rule (for example, from tagged to
untagged) without first removing the VLAN from the list.