Performance Evaluation of Virtual Local Area Network (VLANs)

Abstract

      The medical, financial, and academic spheres can't function without cutting-edge technological advancements. When it comes to quality of service (QoS) metrics like latency, throughput, bandwidth, and security, today's technology relies on high-performance networks. The use of optimized network engineering tools has allowed for the simulation of both the wired and wireless environments on campus, including and excluding virtual local area networks (VLANs). Packets are only sent to ports that are part of the same virtual local area network (VLAN) when hosts are linked together in a VLAN.  By using the distinctive VLAN network, we can enhance the performance of wireless networks while conserving bandwidth. Further, VLANs significantly improve security of wireless network by limiting the hosts amount receiving duplicate frames broadcasted by switches; This enables hosts to keep sensitive data on a separate VLAN. The study examines wireless networks and compares them to VLANs via wireless networks. With the use of online surfing apps and transfer of files in environments with high-traffic, the suggested network is tested for latency and average throughput. By using VLAN technique to partition the region of network's broadcasting, the traffic has been substantially reduced, hence alleviating the network's workload.  The use of VLAN significantly enhanced WLAN performance by mitigating wireless delay, according to the findings of the simulation run using the OPNET 14.5 modeler.  With time, we looked at how protocols of adhoc routing like DSR,AODV, OLSR, GPR, and TORA may boost the wireless VLANs efficiency.