Mismatched Length RX Frame

For Ethernet frame with a payload size ≤1500 bytes, the Triple Speed Ethernet MAC core compares the physical frame length against the value in the Ethernet Type/ Length field. If a difference occurs, the frame is flagged as a mismatched length frame.

Note: As per the precedence rules in Table 1, the aRxFrameMismatchedLength counter is incremented only if the frame has a valid size and a valid FCS.