In this video, you’ll learn about VLANs (Virtual Local Area Networks) and how they are used to logically divide a physical network into smaller, isolated segments. The lesson explains that VLANs allow devices on the same switch to be grouped together, even if they are not physically connected to the same area, improving both security and efficiency.

You’ll see how VLANs reduce unnecessary broadcast traffic by limiting it within each VLAN, and how they enable network administrators to separate departments—such as HR, Sales, and IT—on the same switch infrastructure. The video also introduces key concepts like VLAN IDs, access ports, and the role of switches in handling VLAN traffic.

By the end of this video, you will understand how VLANs provide flexibility, better traffic management, and enhanced security in modern networks, making them one of the most important features of Layer 2 switching.