This Counter64 tallies ATM cells transmitted out through the circuit marked CLP1 (lower priority), the egress counterpart to circuitInCLP1Cells, showing how much of this circuit's discard-eligible cell traffic successfully made it through to the destination. Because CLP1 cells are the first to be sacrificed under congestion, a noticeably lower value here relative to circuitInCLP1Cells minus circuitInCLP1CellsDiscard is a more tolerable, expected kind of loss than a similar gap would be for the CLP0 counters. For example, seeing a modest shortfall between ingress and egress CLP1 cell counts during a period of ring congestion is a normal outcome of the priority scheme working as intended, not necessarily a fault.