This counter records the number of bytes discarded at this flow point due to Elephant Flow rate limiting, a mechanism that throttles unusually large, sustained flows to protect fairness for other traffic. A rising count tells the admin that a single large flow through this flow point is being actively curtailed, which is useful for confirming the elephant-flow protection is working as intended rather than mistakenly assuming general congestion. For example, if a customer running a large backup transfer reports throttled throughput, the admin would check cmFlowPointStatsEfBytesDiscarded to confirm the Elephant Flow mechanism is discarding bytes from that specific large flow.