networking-1.pptx

Networking

1. IN THE NAME OF ALLAH BENEFICENT THE MERCIFUL. 1

2. PRESENTED BY Inam Ur Rehman 2

3. In the world of computers, networking is the practice of linking two or more computing devices together for the purpose of sharing data. What is Networking? 3

4. Types of Networking. WAN (wide area network) LAN (local area network.) MAN ( Metropolitan Area Network. ) 4

5. WHAT IS WAN? This is a network that covers a large geographical area - may be a country or a continent. This type of networks typically use low-speed links for data transfer. (E.g. the Internet) 5

6. WHAT IS WAN? A graphical view 6

7. What is LAN? A network connecting computers in a relatively small area such as a building. However, one LAN can be connected to other LANs over any distance via telephone lines and radio waves. 7

8. What is LAN? Graphical view 8

9. What is MAN? This type of a network covers a metropolitan or a municipality area. Communication links may include low to high-speed connections. 9

10. What is MAN? Graphical view 10

11. Network topologies. Ring topology Star topology Bus topology Mesh topology Tree topology 11

12. Working of topologies. Ring topology Also known as a ring network, the ring topology is a type of computer network configuration where each network computer and device are connected to each other forming a large circle (or similar shape). Each packet is sent around the ring until it reaches its final destination. 12

13. Bus topology. A (computer) network topology in which the nodes are all connected at different points to a line called a bus. 13

14. Mesh topology Mesh Network is a network where all the nodes are connected to each other and is a complete network. In a Mesh Network every node is connected to other nodes on the network through hops. 14

15. Star topology star topology is designed with each node (file server, workstations, and peripherals) connected directly to a central network hub or conecntrator Easy to install and wire. 15

16. Topology Characteristics Problems Bus Uses a linear single cable for all computers linear, If one station experiences a problem it attached. All traffic travels the full cable and can be viewed by all other computers. If one station experience a problem ,it can negatively affect surrounding computers on the same cable. Ring All computers are connected by a unidirectional transmission link, and the cable is in a closed loop If one station experiences a problem, it can negatively affect surrounding computers on the same ring Star All computers are connected to a central device, which provides more resilience for the network The central device is a single point of failure. Mesh Computers are connected to each other, which provides redundancy. Requires more expense in cabling and extra effort to track down cable faults. Comparison of Topologies 16

17. Tree topology A tree topology combines characteristics of linear bus and star topologies. It consists of groups of star-configured workstations connected to a linear bus backbone cable . 17

18. THANK`S ANY QUESTION 18