This attribute counts the number of packets received from the
remote module that have been discarded. It does not include the
packets received from the interrupting queue that have been
discarded. This counter wraps around to zero when the maximum
value is exceeded. Two main reasons that cause this counter to
increase are:
(1) the remote protocol is not compatible with the local protocol
stack or,
(2) the packet cannot be forwarded due to a recent loss of
connectivity or due to congestion.