Abstract : Institutions use local networks for communication, information exchange, and service facilitation, but these networks often experience slow performance and instability due to various factors such as poor network design, increased traffic, and a lack of reliability, privacy, and security. To address these issues, the virtual local network (VLAN) is employed. The purpose of this research is to highlight the importance of VLANs. The performance of VLANs is evaluated by reviewing previous studies and highlighting its key features and services, such as security, scalability, and segmentation of the broadcast domain into multiple areas where each VLAN has its own broadcast domain. To improve the capacity and efficiency of the local network, it is recommended that network engineers and organizations adopt VLAN technology.

Keyword : Access, Broadcast, LAN, Trunk, VLAN