Vlan Dot1Q Tag Native - Cisco ME 3400 Command Reference Manual

Ethernet access switch

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Chapter 2 Cisco ME 3400 Ethernet Access Switch Cisco IOS Commands

vlan dot1q tag native

Use the vlan dot1q tag native global configuration command to enable tagging of native VLAN frames

on all IEEE 802.1Q trunk ports. Use the no form of this command to return to the default setting.

This command is supported only when the metro access or metro IP access image is running on the

Syntax Description

This command has no arguments or keywords.

IEEE 802.1Q native VLAN tagging is disabled.

Command Modes

Global configuration

Command History

Usage Guidelines

When enabled, native VLAN packets going out all 802.1Q trunk ports are tagged.

When disabled, native VLAN packets going out all 802.1Q trunk ports are not tagged.

You can use this command with the 802.1Q tunneling feature. This feature operates on an edge switch

of a service-provider network and expands VLAN space by using a VLAN-in-VLAN hierarchy and

tagging the tagged packets. You must use 802.1Q trunk ports for sending packets to the service-provider

network. However, packets going through the core of the service-provider network might also be carried

on 802.1Q trunks. If the native VLANs of an 802.1Q trunks match the native VLAN of a tunneling port

on the same switch, traffic on the native VLAN is not tagged on the sending trunk port. This command

ensures that native VLAN packets on all 802.1Q trunk ports are tagged.

For more information about 802.1Q tunneling, see the software configuration guide for this release.

This example shows how to enable 802.1Q tagging on native VLAN frames:

Switch# configure terminal

Switch (config)# vlan dot1q tag native

Switch (config)# end

You can verify your settings by entering the show vlan dot1q tag native privileged EXEC command.

vlan dot1q tag native

no vlan dot1q tag native

Modification

This command was introduced.

Cisco ME 3400 Ethernet Access Switch Command Reference

vlan dot1q tag native