Apr 22, 2011

OSI Layers



1. Physical
2. Data link
3. Network
4. Transmission
5. Session
6. Presentation
7. Application

  1. Physical:
             1.1  Network connection types (Rj-45...)  
             1.2  Physical network topology (Bus...)
             1.3  Bit encoding
             1.4  Channel use

   2. Data link:

              2.1  Organizing the bits
              2.2  The IEEE 802 standard

  1.        2.2.1  Media Access Control (MAC) 

    • Logical Topology
    • Media access Method
    • Addressing
               
  2.2.2  Logical Link Control (LLC)
  • Transmission Timing
  • Error Control
  • Flow Control 


     3. Network:
      3.1  Network Addressing
      3.2  Packet Switching (PDVs)
      3.3  Routing

          4. Transmission: 
      4.1  Segment Sequencing
      4.2  Error Control
      4.3  End of End flow control

           5. Session:
      5.1 Connection Manager
      • Simplex (T.V)
      • Half - Duplex (Walki-Taki)
      • Full - Duplex
      5.2 Session Manager

          6. Presentation: 
      6.1  Data Formating Translation
      6.2  Data Encryption

          7. Application (Firewall)

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