VLANs and trunking are essential for building efficient, secure, and scalable networks. By segmenting traffic and using 802.1Q trunks, you can extend VLANs across devices without losing isolation.

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 ...