A count of the number of times a non-supported MPCP
frames reception occurs. A single counter at the ONU and
a set of counters, one for each LLID, at the OLT.
Increment the counter by one for each non-supported MPCP
frame received, for each LLID, as defined in [802.3ah]
clause 64. This counter is mandatory for an ONU and for
an OLT.