This attribute counts the number of protocol errors detected by the
JVC in both the MPANL and the subnet directions. A protocol error
is counted in the following cases:
- reception of a packet from MPANL while waiting for a Raccept
packet from the subnet,
- reception of a packet from the subnet following a call packet and
before the callAccepted is received from MPANL,
- reception of a packet from the subnet or from MPANL that is
shorter than the subnet header.
The value of this attribute wraps to 0 when the maximum value is
reached.