This read-only counter, like statPvcBadFrames, tallies frames received and deleted on this PVC because the input queue was full, representing overflow discards at the frame level. An administrator watches it alongside queue-related counters to confirm buffer capacity is being exceeded during traffic bursts on this circuit. For example, a spike in statPvcOvrFrames during a known burst of polling traffic would confirm to the administrator that the PVC's receive queue depth needs to be increased.