Do you like puzzles? Are you working towards CCNA, or the CCNP Switch exam? If so, today’s post can be an interesting challenge to help you review switch VLAN configuration, with a short lab ...

In Cisco LAN switch environments, the native VLAN is typically untagged on 802.1Q trunk ports. This can lead to a security vulnerability in your network environment. It is a best practice to ...

Learn about the top 5 VLAN setup errors, including native VLAN issues, incorrect port assignments, missing management VLANs, ...

Why won't this trunk allow VLAN 10 traffic to go through? Shouldn't it, by default, allow all VLANs to pass through it as soon as it's made a trunk?