This attribute is not applicable and is not displayed on CQC-based
ATM cards.
This attribute counts cells received from the ATM interface which
have been discarded. This count is included in the rxCell attribute.
This count includes cells discarded due to non-conformance with
UPC, cells which are part of a frame which has been discarded due
to an AAL5 frame reassembly error, cells which are discarded due
to congestion, or cells which are received while the next hop
connection to which the traffic is directed across the backplane is
down. The next hop connection is the Vcc or Vpc identified by the
nextHop attribute of the Nrp or Rp component.
The counter is reset to zero when the component is activated, or
when any critical attribute of the component is changed. The
counter wraps to zero when it exceeds its maximum value of
(2**64)-1.