Protocol layers

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Protocol layers

  1. 1. Application LayerTransport LayerNetwork LayerLink Layer
  2. 2. Application Layer Decides which protocol to use (eg: http:// ftp://) Interfaces with the end user applications
  3. 3. Transport Layer Handles error correction Breaks into packets Numbers and orders packets Reassembles packets
  4. 4. Network Layer Adds IP addresses to packets Handles error correction (2)
  5. 5. Adds hardware (MAC) addresses Breaks packets into frames Timing and sending onto Physical networkLink Layer

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