This counts frames that are both misaligned, carrier sense de-asserting on a non-octet boundary, and contain a CRC error. Because this specifically requires both conditions together, it is a more severe or specific symptom than a plain CRC error alone, often pointing at a more serious physical-layer problem like a failing transceiver or a significant duplex or timing mismatch rather than simple electrical noise. A rising count here, especially combined with late collisions in cdmipEtherTransmitLateCollisionCount, would strengthen the case for a duplex mismatch or failing NIC or transceiver rather than just noisy cabling.