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