This counter measures the number of bytes (octets) that were dropped by the egress quality-of-service queue because the traffic exceeded the Maximum Burst Size (MBS) or buffer pool limits, even though the traffic was within profile (conformant). This indicates that QoS policies are actively rate-limiting or congestion-dropping traffic. An operator tuning service quality would monitor this to verify that QoS mechanisms are functioning and to adjust thresholds if too much conformant traffic is being dropped.