This report provides a detailed analysis of local area network (LAN) technologies, covering various topologies such as star, ring, bus, hybrid, and mesh, with a focus on hybrid topology due to its flexibility and scalability. It critically evaluates traffic-intensive services, network performance, and Quality of Service (QoS), emphasizing load sharing, deadlock prevention, and security constraints. The report discusses LAN concerns like security, performance, reliability, and efficiency, recommending a hierarchical network model to enhance security and performance. It includes a network infrastructure design fulfilling specific requirements, evaluates network components, and details the implementation of a LAN, including services and network security measures. Furthermore, it reviews and tests the LAN, discusses tools for monitoring and troubleshooting, addresses potential attacks and threats, and evaluates network performance, proposing solutions to improve server traffic. The document is available on Desklib, a platform offering study tools and resources for students.