Osi model

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Osi model

  1. 1. OSI Model
  2. 2. OSI Model • Open System Interconnection• This divides the networks into the 7 layers• The protocol perform services to unique layers• Protocol interacts with protocol in Layer Directly above and below• Protocol : it is a set of instruction to perform a function or group of function that is written by a programmer
  3. 3. OSI 7 layers
  4. 4. How to Memories 7 Layers• Everything in the world have a way to learn and understand and same he for the OSI layer “ All People Seems To Need Data Progress”Just took the first alphabet in the word in given sentence
  5. 5. All – Application Layer People – Presentation Layer Seems – Session Layer To – Transport Layer Need – Network Layer Data – Data Link LayerProgress – Presentation Layer
  6. 6. Application LayerApplication Layer is responsible using network application like HTTP, FTM, Directory Services.Application program interface (API) – set of routines that make up part of a software application
  7. 7. Presentation Layer• It is responsible for Data Exchange between 2 devices• It manages data encryption and decryption• Translation and Compression
  8. 8. Session Layer• It is responsible for establishment of connections.• Management, Synchronization, Termination between two nodes• Dialog Control
  9. 9. Transport Layer• It ensures that the entire massage reached to the receiver or not• Service point addressing• Segmentation & Reassembling• Connection Control• Flow Control• Error Control
  10. 10. Network Layer• It is responsible for logical addressing• Routing• Handling Congestion Issues• Internetworking
  11. 11. Data Link Layer• It handle Data Transfer• Framing• Physical Addressing• Access Control• Flow Control• Error Control
  12. 12. Physical Layer• It is responsible for Establishment or Termination of the connection between two nodes.• Media Characteristics• Data Encoding• Transmission Mode

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