A Survey of Emerging Techniques for Large Networks of Virtual Local Area Networks (VLANs) with Benefits and Limitations

The numerous benefits of wireless communication have led to its meteoric rise in popularity as a network type, yet there have been numerous obstacles to enhancing its performance. An alternative method that allows a network administrator to construct a logical network out of a physical network is VLAN, which stands for Virtual Local Area Network. Thus, VLANs are fundamental technology for enhancing network performance, capacity and security. VLANs are a means of breaking large networks into smaller broadcast domains, managing broadcast traffic, controlling congestion, and providing increased levels of security. This paper explores the emerging techniques in managing and optimising VLANs within large-scale network environments. VLANs are essential for improving network performance, security, and scalability by the logical segmentation of networks into smaller, isolated broadcast domains. This survey also outlines trends in future VLAN technologies such as Software Defined Networking (SDN), VXLAN, and Big Data and Analytics. Also, the paper covers the uses, advantages, and disadvantages of VLANs, including enhanced security, scalability, and economy, though admitting to issues of VLAN configuration difficulty and security threats. In the paper, the authors discussed the future trends including the integration of multi-cloud, network slicing coupled with 5G, and integration of blockchain for VLAN security.