This read-only Counter64 is the frame-level counterpart of the Forwarded-bytes counter — frames successfully sent out on this PM instance. A frame-count jump with flat byte growth usually means the average frame size collapsed — for example a burst of small control packets — which this pairing exposes even when total throughput looks unremarkable; because it is drawn from this table's currently-accumulating, short-interval bin, it reflects only the last few minutes of activity, so it's the value to watch for a fast-forming problem rather than a long-term trend. On a 100 Mbps residential broadband EFP, this might read 64,800 frames over the last 15 minutes, which an admin would cross-check against the matching byte counter to see if average frame size looks normal for that service.