This attribute counts the number of forward Resource Management
(RM) cells sent over the interface since the last backward RM-cell
was received from the interface. If the value of this attribute is
greater than or equal to the value of forwardRmCellLimit, the
Allowed Cell Rate (ACR) value would be decreased by the amount
(CDF*ACR), where CDF is determined by the
cutoffDecreaseFactor.
This counter is reset to zero each time a backward-RM cell is
received.
This counter does not wrap to zero if it reaches its maximum value
of 4095 in order to indicate that no backward RM cell has been
received.