What is VLAN configuration?

VLAN (Virtual LAN) configuration is a logical grouping of network devices, allowing them to communicate as if they are on the same physical network segment, regardless of their actual physical location. VLANs enhance network security, performance, and manageability by segmenting the network into smaller broadcast domains. This reduces unnecessary traffic and allows administrators to apply specific policies and access controls to different groups of users or devices. VLANs are commonly used to isolate sensitive data, separate guest networks, or group devices by department or function.