This counter reports the total frames of ingress traffic on this PM instance that exceeded even the excess rate and were outright discarded, during today's still-accumulating 24-hour window. Any nonzero value accumulated over today's still-open 24-hour bucket represents traffic this specific service actually lost at ingress due to rate policing, which is a direct, quantifiable cause for a customer's throughput or application-quality complaint on this port, distinct from congestion elsewhere in the network. For example, a frame-drop count that climbs in lockstep with the byte-drop count (rather than being disproportionately higher) within today's still-open 24-hour bucket tells you the discarded traffic was mostly full-size frames, consistent with a bulk transfer rather than a flood of small packets.