This read-write INTEGER (0-60) sets, in minutes, how often this port's error rate is sampled to decide whether the cut-through/store-and-forward thresholds should trigger a mode change. A shorter sampling interval makes the port react to error bursts more quickly but risks flapping between modes on noisy but ultimately healthy links, while a longer interval smooths that out at the cost of slower reaction to a genuinely degrading connection. An admin dealing with a flaky cable that produces intermittent bursts might lengthen this to avoid mode-flapping.