A count of OAMPDUs received that contain an OAM code from
Table 57-4 that are not supported by the device. This
counter is incremented on reception of a valid frame with
(1) destinationField equal to the reserved multicast
address for Slow_Protocols specified in CROSS REF Table
43B-1, (2) lengthOrType field value equal to the reserved
Type for Slow_Protocols as specified in CROSS REF Table
43B-2, (3) a Slow_Protocols subtype value equal to the
subtype reserved for OAM as specified in Table 43B-3, (4)
an OAM code for a function that is not supported by the
device.