ERROR DETECTON & CORRECTION Error Detection EDC= Error - - PDF document

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ERROR DETECTON & CORRECTION Error Detection EDC= Error - - PDF document

ERROR DETECTON & CORRECTION Error Detection EDC= Error Detection and Correction bits (redundancy) D = Data protected by error checking, may include header fields Error detection not 100% reliable! protocol may miss some errors,


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ERROR DETECTON & CORRECTION

5: DataLink Layer 5-11

Error Detection

EDC= Error Detection and Correction bits (redundancy) D = Data protected by error checking, may include header fields

  • Error detection not 100% reliable!
  • protocol may miss some errors, but rarely
  • larger EDC field yields better detection and correction
  • therwise
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5: DataLink Layer 5-12

Parity Checking

Single Bit Parity:

Detect single bit errors

Two Dimensional Bit Parity:

Detect and correct single bit errors

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END of ERROR DETECTON & CORRECTION

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