VIRTUAL LOCAL AREA NETWORKS (VLANS) IN MODERN NETWORKING

A Virtual Local Area Network (VLAN) is a logical subdivision of a physical network that allows devices to communicate as if they were part of the same network, regardless of their physical location. VLANs provide numerous benefits including security, better traffic management, and simplified network administration. By segmenting traffic at Layer 2 of the OSI model, VLANs help reduce broadcast domains, enhance security, and optimize network performance. This paper explores the concept of VLANs, how they function, and their benefits and limitations. It covers VLAN implementation, configuration strategies, and security considerations. Moreover, the paper highlights the role of VLANs in both enterprise and campus networks, as well as their use in hybrid cloud infrastructures. The paper concludes by addressing the limitations of VLANs and the alternatives that have emerged to extend their functionality in large-scale environments.