Introduction to Computer Networking学习笔记(十):error detection 错误探查 Checksum、CRC、MAC,程序员大本营,技术文章内容聚合第一站。
H. Park, "On multiple error detection in matrix triangularizations using checksum methods," Journal of Parallel and Distributed Computing, vol. 14, no. 1, pp. 90-97, 1992.On multiple error detection in matrix triangularizations using checksum methods - Park - 1992 () Citation Context ......
I'm being rather hard on whoever cooked this up because it seems that hardware implementations of the CRC algorithm used the reflected checksum value and so producing a reflected CRC was just right. In fact reflecting the world was probably a good engineering solution - ...
ERRORS WITH AN ODD NUMBER OF BITS: We can catch all corruptions where E has an odd number of bits by choosing a G that has an even number of bits. To see this, note that 1) CRC multiplication is simply XORing a constant value into a register at various offsets, 2) XORing is simpl...
Instead, when a communications system detects a CRC coding error in a received codeword, the receiver requests the sender to retransmit the codeword. In CRC coding, the transmitter applies a rule to each data frame to create extra CRC bits, called the checksum or syndrome, and then appends ...
ERROR_DEVICE_SUPPORT_IN_PROGRESS 171 (0xAB) Device's command support detection is in progress. ERROR_CANCEL_VIOLATION 173 (0xAD) A lock request was not outstanding for the supplied cancel region. ERROR_ATOMIC_LOCKS_NOT_SUPPORTED 174 (0xAE) ...
In data communication, the receive end needs to detect whether any error occurs during data transmission. Common technologies for the error detection include parity check, checksum, and cyclic redundancy check (CRC). The transmit end calculates the verification code based on a certain algorithm and...
To correct the error in data frame, the receiver must know exactly which bit in the frame is corrupted. To locate the bit in error, redundant bits are used as parity bits for error detection.For example, we take ASCII words (7 bits data), then there could be 8 kind of information we...
(in this case a 0), and we transmit the nine-bit string (101110110). The error detection procedure is to count the number of 1s; we decide that the string is in error if this number is odd. When the information symbols are embedded into the codeword, as in this example, the code ...
Run a virus detection program. Viruses can infect all types of hard disks that are formatted for Windows, and the resulting disk corruption can generate system bug check codes. Make sure the virus detection program checks the Master Boot Record for infections. ...