A count of frames received on a particular
interface that are not an integral number of
octets in length and do not pass the FCS check.
The count represented by an instance of this
object is incremented when the alignmentError
status is returned by the MAC service to the LLC
(or other MAC user). Received frames for which
multiple error conditions obtain are, according to
the conventions of [9], counted exclusively
according to the error status presented to the
LLC.