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What does diagnostic trouble code P0602 on 99 Chevy Malibu mean?
Trouble code P0602 means:Control module programming error
IP TCP and UDP all discard a packet that arrives with a checksum error and do not attempt to notify the source Why?
they all discard it because if checksum error error it mean data is sent byother user and it forget its rout due to fault of channel if reach thereso it is not need to notify the source about this error
IP TCP and UDP all discard a packet that arrives with a checksum error and do not attempt to notify the source?
they all discard it because if checksum error error it mean data is sent by other user and it forget its rout due to fault of channel if reach there so it is not need to notify the source about this error (Waqas Qadeer)
What does the codes P-0601 and P-0602 mean in an 2008 Chevy Cobalt?
Trouble code P0601 means:Internal control module memory check sum error Trouble code P0602 means:Control module programming error
IP TCP and UDP all discard a packet that arrives with a checksum error and do not?
Only TCP will automatically discard a packet with a bad checksum. UDP packets have a checksum field, but it is rarely used, and then only by the application (not UDP itself)
What is the name of an error-checking procedure that uses a formula to calculate a numeric value?
checksum
Why did the Checksum values change with each new request?
Every packet has a new set of error detection assigned to it, the Checksum is a part of this process. The error correction occurs in the transport layer where the ACK will fail and the receiving host will request the packet to be sent again.
What does it mean when a protocol gets a checksum?
A checksum is used to determine that the information sent using the protocol has not been corrupted en-route.
Do checksums change during transmission?
If the checksum did change during transmission, wouldn't that mean a transmission error occurred? Any compression or encryption in the middle of transmission affects the data at that moment, but that's the wrong time to try to calculate a checksum for comparison purposes. (Unless it is yet another layer of error checking, used after compression/encryption but before transmission, and again after reception but before decompression/decryption.)
What is DOS checksum error?
A DOS checksum error occurs when the checksum value calculated for a file or data block does not match the expected value, indicating potential data corruption or integrity issues. This can happen during file transfers, disk reads, or when accessing damaged storage media. The error can prevent the system from correctly reading or executing the affected file, leading to operational problems. Users may need to verify the integrity of the data or perform repairs to resolve the issue.
How do you calculate checksum value for a message?
To calculate a checksum value for a message, first, divide the message into fixed-size blocks (often bytes). Then, sum the binary values of these blocks together, and if there's an overflow, wrap around and add it back to the sum. Finally, the checksum is typically obtained by taking the bitwise complement of the final sum. This checksum can then be appended to the message for error-checking purposes.
What is invalid checksum?
An invalid checksum indicates that the data integrity check has failed, meaning the data may have been altered or corrupted during transmission or storage. Checksums are numerical values generated from a set of data, and they are used to verify that the data remains unchanged. If the calculated checksum of received data does not match the expected checksum, it suggests an error, prompting a retransmission or further investigation.
