switchport trunk native-vlan-untagged

Configures a port to accept only untagged packets, and specifies that those packets be egress untagged. The untagged packets may be classified to an 802.1Q VLAN, a service VF, or a transport VF.

Syntax

switchport trunk native-vlan-untagged vlan_id

no switchport trunk native-vlan-untagged

Parameters

vlan_id: Adds a classified VLAN (VLAN ID > 4095) to transmit and receive through the Layer 2 interface.

Modes

Interface subtype configuration mode on a trunk port

Usage Guidelines

This command is supported when the port is in no-default-vlan trunk mode, as enabled by means of the switchport mode trunk-no-default-native command.

Use the no switchport trunk native-vlan-untagged command to remove the configuration.

Port mode change is not allowed when port security is enabled on the interface.

Examples

Configure untagged native VLAN 5000, allow VLAN 6000, and make VLAN 7000 the default VLAN.

device# configure terminal
device(config)# interface ethernet 0/1
device(config-if-eth-0/1)# switchport mode trunk-no-default-native
device(config-if-eth-0/1)# switchport trunk native-vlan untagged 5000
device(config-if-eth-0/1)# switchport trunk add vlan 6000 ctag 100-200
device(config-if-eth-0/1)# switchport trunk default-vlan 7000

Remove the native VLAN 5000.

device# configure terminal
device(config)# interface ethernet 0/1
device(config-if-eth-0/1)# no switchport trunk native-vlan-untagged