Computer Network Topology By Team_Triangle(Dept. English)

A network topology is the physical and logical arrangement of nodes and connections in a network.

1. Dhaka International University Team : Triangle Batch: 54 th ( bi ) Course :Fundamentals of computer Topic :Topology

2. Definition of Topology: A network topology is the physical and logical arrangement of nodes and connections in a network

3. Types of Topology : Star Topology. Ring Topology. Bus Topology. Tree Topology. Mesh Topology.

4. Star Topology : Star topology is a network topology in which each network component physically connected to a central nodes. Advantages : Less expensive. Easy to install and Robustness. Disadvantages : Failure to control hub will effect entire network. Performance is based on the single concentrator i.e hub

5. Ring Topology : Ring topology is a network in which each nodes connects to exactly two other nodes, forming a single pathway. Advantages : Data transmission is high speed. Cheap to install and expand. Disadvantages : Troubleshooting is difficult in this topology. Less secure.

6. Bus Topology : Bus topology is a type of network in which all devices are connected to a single cable called “bus”. Advantages : Coaxial or twisted pair cables are used in this topology. Cost of the cable is less compared to other topology. Disadvantages : If the common cable fails, the whole system will crash down. Security is very low.

7. Tree Topology : In tree topology, there is one central node, and each node is connected to the central node through a single pathway. Advantages : We can add new devices to the existing network. Error detection and error correction are very easy. Disadvantages : The cost is very high because of cabling. If the central hub get fails, entire system fails.

8. Mesh Topology : Mesh topology is a type of topology in which every device or computer is connected to every other device. Advantages : Mesh topology is robust. Provides privacy and security. Disadvantages : Huge amount of cabling I/0 ports required. Installation and reconnection is difficult.

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