Configuring a native VLAN on a trunk port

1. Enter the configure terminal command to access global configuration mode.
   

   device# configure terminal
   device(config)# 

2. Enter the interface ethernet command to configure the interface mode.
   

   device(config)# interface ethernet 0/1
   

3. Enter the switchport command to set the interface as switchport.
   

   device(conf-if-eth-0/1)# switchport
   

4. Enter the switchport trunk native-vlan command to set native VLAN characteristics to access and specify a VLAN.
   

   device(conf-if-eth-0/1)# switchport trunk native-vlan 300
   

This example removes the configured native VLAN on the Ethernet interface.

device# configure terminal
device(config)# interface ethernet 0/1
device(conf-if-eth-0/1)# no switchport trunk native-vlan 300