Virtual Local Area Network (VLAN)

A Virtual Local Area Network (VLAN) is a technology that allows multiple distinct networks to exist within a single physical network. It segments devices into separate groups, even if they're connected to the same hardware, improving security and performance. For example, in an office, a VLAN can separate the finance department from marketing, preventing unauthorized access to sensitive information. This organization helps manage network traffic and enhances efficiency, making it easier to control and monitor communications among different user groups. Essentially, VLANs create virtual boundaries within a broader network infrastructure.