Manav Goyal

Session Layer - Computer Networks

  • Allows two applications on different computers to open, use, and close a connection called a session
    • A session is a highly structured dialog between two workstations
  • Functions
    • Authentication & Authorization
    • Session restoration (Checkpoint)
    • Dialog control
      • It also makes sure the session is orderly, establishing which node transmits first, how long it can transmit, and what to do in case of an error
      • It performs name-recognition and other functions, such as security, that are needed to allow two applications to communicate over the network
    • Synchronization
      • Webinar => Audio & Video synchronization
      • The session layer synchronizes user tasks by placing checkpoints in the data stream
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