Cable verdict folded into one console cell (length green, fault name red, xover amber, fail; diag rule lines and counters-reset line gone), reset fires at the press not diag completion, and the measure's blip is suppressed at every counter source instead of counted-hidden-reverted: worker error adds, loss-window write-offs (quiet slides state without charging; leaving the quiet era presumes in-window holes delivered so the gap's tail is never charged late), NIC poller tracks raw without accumulating, socket drops discarded, modules un-primed by the measure itself; display hold deleted so pre-existing errors no longer blink out during a measure

tx.go

@@ -17,12 +17,13 @@ type txStats struct {
 }
 
 type txWorker struct {
-	fd      int
-	stream  uint16
-	spec    *frameSpec
-	batch   int
-	stats   *txStats
-	startTx <-chan struct{}
+	fd        int
+	stream    uint16
+	spec      *frameSpec
+	batch     int
+	stats     *txStats
+	measuring *atomic.Bool
+	startTx   <-chan struct{}
 }
 
 func (w *txWorker) run(done *atomic.Bool) {
@@ -63,7 +64,8 @@ func (w *txWorker) run(done *atomic.Bool) {
 		}
 		// Taking fewer of the vector than offered is the ring's room, not a frame
 		// lost: the rest go on the next pass.
-		if n < 0 && err != unix.EINTR && err != unix.EAGAIN && err != unix.ENOBUFS {
+		if n < 0 && err != unix.EINTR && err != unix.EAGAIN && err != unix.ENOBUFS &&
+			!w.measuring.Load() {
 			w.stats.errs.Add(1)
 		}
 	}