This Gauge32 gives the finalized count of cells or frames successfully received on this queue during the previous 15-minute period. As a closed sample, it's the reference point an admin compares against the still-open current-period count to judge whether this queue's throughput is trending up or down. For example, a sharp drop from stuAtmStatsPrevMinRx to the current period's equivalent reading would flag a sudden throughput problem on that specific queue worth investigating immediately.