A string of three bits corresponding to the State field
(see Table 57-6) of the most recently sent Information
OAMPDU. The first and second bits corresponds to the
Parser Action bits in the State field. The third bit
corresponds to the Multiplexer Action bit in the State
field.
This value is updated 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)
a OAMPDU code equal to the Information code as specified
in Table 57-4.