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Switchport allowed vlan – Accton Technology Edge-corE Fast Ethernet Switch ES3528M-SFP User Manual

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Command Line Interface

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switchport allowed vlan

This command configures VLAN groups on the selected interface. Use the no form
to restore the default.

Note: Each port can only have one untagged VLAN. If a second VLAN is defined for

a port as untagged, the other VLAN that had untagged status will
automatically be changed to tagged. Setting a VLAN untagged will also
change the native VLAN of the port to this VLAN.

Syntax

switchport allowed vlan {add vlan-list [tagged | untagged] |

remove vlan-list}

no switchport allowed 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: 1-4092).

Default Setting

All ports are assigned to VLAN 1 by default.
The default frame type is untagged.

Command Mode

Interface Configuration (Ethernet, Port Channel)

Command Usage

• A port, or a trunk with switchport mode set to hybrid, must be assigned to a

VLAN as untagged.

• If a trunk has switchport mode set to trunk (i.e., 1Q Trunk), then you can only

assign an interface to VLAN groups as a tagged member.

• Frames are always tagged within the switch. The tagged/untagged parameter

used when adding a VLAN to an interface tells the switch whether to keep or
remove the tag from a frame on egress.

• The interface can be added to a VLAN as an untagged member regardless of

connected devices to this interface. The default setting is untagged VLAN 1.
Note that each port can only have one untagged VLAN. If a second VLAN is
defined for a port as untagged, the other VLAN that had untagged status will
automatically be changed to tagged. Setting a VLAN untagged will also
change the native VLAN of the port to this VLAN.

• 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.