network essential ppt

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network essential ppt

  1. 1. Presenter NAME: Vikas Pratap Tiwari ROLL NO: 0003 Batch no- HCE~900 NAME: Vikas Pratap Tiwari ROLL NO: 0003 Batch no- HCE~900
  2. 2. NAME: Vikas Pratap Tiwari ROLL NO: 0003 Batch no- HCE~900
  3. 3. CONTENT Definition of Network Definition of Network Topology Types of Network Topology The Advantages and Disadvantages of Network Topology NETWORK TOPOLOGY NETWORK STAR TOPOLOGY BUS TOPOLOGY RING TOPOGY
  4. 4. DEFINITION What is a Network ? A network is simply two more computers that are linked together. or
  5. 5. TYPES OF TOPOLOGY 1.Point-to-point 2.Bus 3.Star 4.Ring or circular 5.Mesh 6.Tree 7.Hybrid
  6. 6. STAR TOPOLOGY All devices connect to a central device, called hub. All data transferred from one computer to another passes through hub.
  7. 7. STAR TOPOLOGY
  8. 8. STAR ADVANTAGE 1) Easy to install and wire. DISADVANTAGE 1) Requires more cable length than a linear topology. 2) If any node or cable fails, other nodes are not effected. 2) If the hub or concentrator fails, nodes attached are disabled. 3) Easy to detect faults and to remove parts. 3) More expensive than linear bus topologies because of the cost of the hubs.
  9. 9. BUS TOPOLOGY All computers and devices connected to central cable or bus. The central cable is the backbone cable. The devices or nodes are attached with the bus through interface connecter.
  10. 10. BUS TOPOLOGY USER USER USER USER USER USER USER USER USER USER
  11. 11. BUS ADVANTAGE DISADVANTAGE 1) Easy to connect computer or peripheral to a linear bus. 1) Entire network shuts down if there is a break in the main cable. 2) Requires less cable length than a star topology. 2) Terminators are required at both ends of the backbone cable. 3) If one node fails, other nodes are not effected. 3) Difficult to identify the problem if the entire network shuts down.
  12. 12. RING TOPOLOGY In ring topology, each computer is connected to the next computer and the last is connected to the first. Data travels from device to device around entire ring, in one direction. In this way, the last node connects to the first to complete the ring.
  13. 13. RING TOPOLOGY
  14. 14. RING ADVANTAGE DISADVANTAGE 1) It is less expensive than star topology. 1) Adding or removing a computer from network effects the whole networks. 2) It is easy to install and to maintain. 2) If any of the nodes fail then the ring is broken and data cannot be transmitted successfully. 3) It is difficult to troubleshoot the ring.

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