This read-only Counter64 is the frame-level counterpart of the Yellow-bytes counter — frames received on this PM instance and remarked yellow for exceeding the committed rate. Admins watch the frame count alongside the byte count because a policer can yellow-mark a large number of small frames without moving much byte volume, something the byte counter alone would understate; because it is drawn from the current, still-open 24-hour bin for today, the number keeps climbing until midnight rollover, so it should be read as "so far today" rather than a finished daily total. On a 1 Gbps UNI feeding a business Ethernet Private Line, this might read 312,000 frames over today so far, which an admin would cross-check against the matching byte counter to see if average frame size looks normal for that service.