This reports the clock quality level the system is currently attributing to this specific reference unit for selection-algorithm purposes, which may differ from the raw received quality level if the unit's signal is being forced or overridden. An admin comparing this value against cienaCesInputPUReceivedQL for the same unit can tell whether the operational quality reflects the actual incoming signal or has been administratively adjusted. For example, a unit showing a lower operational QL than its received QL might have had its quality artificially capped by policy to discourage the selection algorithm from preferring it.