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Framing: how to tell when a frame begin and when it ends

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• Framing
  • Try this experiment:

    Read these bits from left to right: There is a frame in this figure..... Can you tell where a frame starts and where it ends ???

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  • Fact:

    You cannot find the start and the end because: You do not know the protocol (= agreement).....

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  • Further information:

    A frame starts and ends with this pattern: 01111110

    Can you now tell where a frame starts and where it ends:

    Answer:

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• Types of framing methods
  • Framing techniques:

    Byte-oriented protocols: Used in low speed links          Bit-oriented protocols Used in high speed links