Interface Errors

Runts

Frames that are smaller than the minimum frame size (64 bytes).

Giants

Frames that are larger than the maximum frame size (1518 bytes).

CRC

Frames that failed the CRC check (in the Ethernet FCS trailer).

Frames

Frames that have an incorrect format (due to an error).

Input errors

Total of various counters, such as the above four.

Output errors

Frames the switch tried to send, but failed due to an error.