Error detection-- crc, Computer Networking

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Error Detection-- CRC

  • Powerful error detection system
  • Rather than addition, binary division is utilized
  • A series of redundant bits called "CRC" or else "CRC remainder" is appended to the data unit consequently that the resulting data unit becomes divisible by a predetermined binary number
  • At the receiver side the incoming data unit is divided by the similar predetermined number.
  • If there is no remainder entirely the data unit is accepted
  • If there is a remainder entirely the receiver indicates that the data unit has been damaged during transmission

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