As the demand for high-capacity, resilient connectivity continues to grow in campus networks, traditional architectures based on the Spanning Tree Protocol (STP) are increasingly limited in terms of scalability and efficiency. This study investigates the implementation of Ethernet Virtual Private Network over Virtual Extensible Local Area Network (EVPN VXLAN) as a modern alternative to conventional designs. Both traditional and EVPN VXLAN-based network topologies were modeled and evaluated using key performance metrics, including throughput, end-to-end latency, convergence time, and protocol overhead. The simulation results reveal that EVPN VXLAN significantly enhances throughput and achieves sub-second convergence through the use of Equal-Cost Multi-Path (ECMP) routing. Although the approach introduces some latency and encapsulation overhead, these are outweighed by the performance benefits. The findings highlight the potential of EVPN VXLAN to deliver scalable, traffic-optimized, and future-proof campus network solutions.