Network Architecture at Computer Centre

The purpose of UTeM Computer Centre is to provide comprehensive computing and information technology services to support the academic, research, and administrative activities of the university. The Computer Centre serves as a centralized hub for IT-related services, resources, and support for the UTeM community, including students, faculty, and staff. This computer centre consist of 3 layer of floor (1st floor, 2nd floor, and 3rd floor) with the main entrance at the 2nd floor. Here is the network architecture for this building:

Network Topology: Star Topology

The network topology used is star topology. In this star topology, all subnetworks are connected to the computer center router. All the subnetworks can be managed individually from the computer center which makes any troubleshooting easier. Star topology is also scalable, so any devices can be added to the network by connecting them to the central hub.

Other than that, only specific connections will be affected if any devices or cable fails in a star topology. The rest of the network will not be affected and continues to function normally. So this fault isolation will facilitate the troubleshooting process because the devices that cause the problem can be identified and replaced without affecting the entire network.

Besides, star topology can improve network performance and increases data transfer speed because it eliminates the need for the devices to share bandwidth. The security level can also be enhanced using this topology because it is easier to implement security measures like firewalls and access control lists at the central point when all devices are connected to a central hub. This centralization makes it easier to manage and update security policies and ensure consistent security across the network.

Communication Media: Wi-Fi and UTP cable.

UTP Cable:
In general, UTP cables cost less than other network cable types like fibre optic cables. As a result, they are an affordable option for creating networks, particularly over shorter distances. Besides, installation and termination of UTP cables are simple. They make use of industry-standard connectors like RJ-45, which are generally accepted by networking hardware. They are a practical option for creating networks because of how simple they are to install.

Wi-Fi:
Due to its adaptability and ease, Wi-Fi is used to create networks for the computer center. It eliminates the need for physical connections within a building by enabling wireless connectivity between devices.Furthermore, Wi-Fi is suited for short- to medium-range distances and can deliver respectable bandwidth. It is especially helpful for portable electronics and places where installing cables is difficult.

Networking Devices: Router, Switch, and Wireless Access Point (WAP)

Router:
A router joins various networks, including LANs and wide area networks (WANs), together. Devices can connect across networks because it routes network traffic based on IP addresses between them.

Switch:
A switch is a piece of equipment that joins various LAN-connected devices together. It increases network efficiency by receiving data packets and only forwarding them to the intended recipient device.

Wireless Access Point:
By transmitting a wireless signal, a wireless access point enables wireless devices to join a wired network. It serves as a focal point for wireless communication and makes Wi-Fi connectivity possible up to a certain distance.