Cisco Switches: Configuring An Access VLAN On A Port

Summary

This article goes through configuring a VLAN on a switch port on a Cisco switch. These are just notes intended for future use in case I forget how to configure this.

Switch Configuration

After signing into the switch. Go into the terminal configuration prompt. Once you finish entering this, you should see (config) in the prompt.

Switch1# configure terminal

Access the configuration prompt for the interface. Once you enter this you should see (config-if) in the prompt.

Switch1(config)# interface gigabitethernet 1/0/3

Configure VLAN 110 as an access VLAN.

Switch1(config-if)# switchport access vlan 110

Exit from the interface configuration mode.

Switch1(config-if)# exit

Exit from the terminal configuration mode.

Switch1(config)# exit

Saving Changes

Save the running configuration to the startup configuration so the changes are persistent across reboots.

Switch1# copy running-config startup-config

Confirming Changes

Check the changes made to the running configuration by looking at the running configuration file. Look for the port gigabitethernet 1/0/3 or whatever port was set. This should also be saved to the startup-config when looking at that also. Considering the previous command that was provided.

Switch1# show running-config

This will provide the current configuration for the device. When you look at the output of the command. The changes should reflect the configuration specified in the commands entered above.

Conclusion

Now we should have all of the steps on how to configure a VLAN on a Cisco switch port. Note that this article only explains how to configure this for a switch port and doesn’t actually explain how VLANs work. You’ll want to do your own research into this. I’m merely putting this here for reference.