این crc داخل مودم تو قسمت status جیه؟برای من زیر upstream عدد 1 هست
خطای مربوط به خطت هست .
~ Cyclic Redundancy Check (CRC)
CRC is a block code used for error detection only. CRC is when a special checksum code is attached to each packet of data that is transmitted.
A very simplified example of a checksum would be:
Data Transmitted : |
1, 3, 5, 7, 9 |
Checksum: |
= 25 |
At the receiving end a decoder then performs the same calculation on the data in the packet and then compares it to the transmitted CRC code.
The decoder produces the output data only if the codes match indicating that there are no errors. If an error occurs then the decoder signals an erasure (loss of data), and a higher level
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then re-requests the data.
کد:
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