Computer Network Topology By Team_Purple (Dept. English)

A network topology is the physical and logical arrangement of nodes and connections in a network. 
Physical topology describes the layout of devices and cables, and logical topology describes how data is transmitted within the network regardless of the physical layout.

1. Exploring Topology By Team Purple @MJ Mahin @Anjona Monni @Safwan Ahmed

2. Our team Anjona Monni Safwan Ahmed MJ Mahin

3. Outline

4. What is Topology? 01 Let’s know about Topology!

5. Topology A network topology is the physical and logical arrangement of nodes and connections in a network.  Physical topology describes the layout of devices and cables, and logical topology describes how data is transmitted within the network regardless of the physical layout.

6. Basic Concepts 02 Want to know about the basic concepts?

7. Topology tree

8. Point-to-point topology is a type of topology that works on the functionality of the sender and receiver. It is the simplest communication between two nodes, in which one is the sender and the other one is the receiver. Point-to-Point provides high-bandwidth Point to Point Topology

9. Star topology is a network topology in which each network component is physically connected to a central node such as a router, hub, or switch. In a star topology, the central hub acts like a server, and the connecting nodes act like clients. . Star Topology

10. Advantage: Less expensive. Easy to install and reconfiguration. Robustness Disadvantage: Failure of the central hub will affect the entire network. Performance is based on the single concentrator i.e. hub. . Star Topology

11. A ring network is a network topology in which each node connects to exactly two other nodes, forming a single continuous pathway for signals through each node – a ring. . Ring Topology

12. Advantage: The data transmission is high-speed. The possibility of collision is minimal in this type of topology. Cheap to install and expand. It is less costly than a star topology. Disadvantage: The failure of a single node in the network can cause the entire network to fail. Troubleshooting is difficult in this topology. Less secure.  . Ring Topology

13. Bus topology is a type of network topology in which all devices are connected to a single cable called a "bus." This cable serves as a shared communication medium, allowing all devices on the network to receive the same signal simultaneously. . Bus Topology

14. Advantage: Coaxial or twisted pair cables are mainly used. The cost of the cable is less compared to other topologies. Bus topology is a familiar technology as installation and troubleshooting techniques are well known. Disadvantage: If the common cable fails, then the whole system will crash down. Adding new devices to the network would slow down networks. Security is very low. . Bus Topology

15. In a tree topology , there is one central node (the “trunk”), and each node is connected to the central node through a single path. Nodes can be thought of as branches coming off of the trunk. . Tree Topology

16. Advantage: It allows more devices to be attached to a single central hub thus it decreases the distance that is traveled by the signal to come to the devices. We can add new devices to the existing network. Error detection and error correction are very easy in a tree topology. Disadvantage: If the central hub gets fails the entire system fails. The cost is high because of the cabling. If new devices are added, it becomes difficult to reconfigure. . Tree Topology

17. The mesh topology is a type of topology in which every device or computer is connected to every other device. Each device not only sends its signals but also receives signals from other devices . . Mesh Topology

18. Advantage: Dedicated link ensures that each connection carries its data load, eliminating the traffic problem. Mesh topology is robust. Provides privacy & security. Fault identification and isolation is easy. Disadvantage: Huge amount of cabling and I/O ports required. Installation and reconnection is difficult. . Mesh Topology

19. Reference https://www.lenovo.com/us/en/glossary/what-is-tree-topology/?orgRef=https%253A%252F%252Fwww.google.com%252F https://www.javatpoint.com/what-is-tree-topology https://byjus.com/gate/tree-topology-notes/ https://www.geeksforgeeks.org/advantages-and-disadvantages-of-tree-topology/ https://www.computerhope.com/jargon/t/treetopo.htm https://en.wikipedia.org/wiki/Tree_network

20. Thanks! Please keep this slide for attribution