What does a high number of rx_crc_errors indicate?

Question

When running ethtool I notice a very high level of rx_crc_errors. When the server is under heavy load the counter goes even higher. What does this typically point to as the source of the problem? Media or cable issues?

Solution 1

Typically errors of this type (errors that indicate bad data integrity) are the result of layer 1 problems. I'd investigate cabling and the physical layer interface first.

Solution 2

Replacing the ethernet cable would be my first step to debug, followed by testing the patch field connectors etc.

Comments

[Graham Zulauf]

Thanks for the information. I'll try doing the testing you've suggested.

[Graham Zulauf]

Thanks for the information. I'll try doing the testing you've suggested.