This counter records the number of frames marked yellow and then dropped in the ingress direction at this flow point during the current interval. This tells the admin that a portion of the flow's excess-rate, bursting, traffic was actually discarded rather than merely deprioritized, which could explain packet loss reported by the customer. For example, if a customer's video calls are choppy and cmFlowPointStatsFMYD is nonzero, the admin would suspect the customer's traffic is bursting above its committed rate and losing frames as a result.