What is the meaning of CRC or frame errors on my network interface?

Solution Verified - Updated -

Issue

  • What is the meaning of CRC or frame errors on my network interface?
  • Noticing network connectivity and performance problems
  • ifconfig output shows a non-zero count for frame errors on an interface
  • Network Interface Generating rx_crc_errors or similar in ethtool -S statistics output

Environment

  • Red Hat Enterprise Linux, all versions
  • Ethernet

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