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a CRC error (cyclic redundancy check) is a collision or transmission error at the interface level, this can be caused by mismatched speed or duplex between the 2 connected interfaces.
fixing the 2 sides so they match up should fix the issue. if it doesn't, there might be noise on the cable if it is not properly shielded, so swapping the cable may help also
for information on log files, please check this page in the admin guide