What is Cyclic Redundancy Check? All Questions › Category: Networks › What is Cyclic Redundancy Check? 0 Vote Up Vote Down Anonymous asked 3 years ago 1 Answers 0 Vote Up Vote Down Anonymous answered 3 years ago Each message features a 15-bit Cyclic Redundancy Checksum (CRC), and any node that detects a different CRC in the message than what it has calculated itself will signal a CRC Error.