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

rx.go

@@ -110,13 +110,14 @@ func fillBack(frames, bytes []uint64) {
 }
 
 type rxWorker struct {
-	fd     int
-	batch  int
-	stream uint16
-	spec   *frameSpec
-	stats  *rxStats
-	loss   *lossWindow
-	ready  *sync.WaitGroup
+	fd        int
+	batch     int
+	stream    uint16
+	spec      *frameSpec
+	stats     *rxStats
+	loss      *lossWindow
+	measuring *atomic.Bool
+	ready     *sync.WaitGroup
 }
 
 func (w *rxWorker) run(done *atomic.Bool) {
@@ -132,9 +133,12 @@ func (w *rxWorker) run(done *atomic.Bool) {
 	w.ready.Done()
 
 	for !done.Load() {
+		// One flag load covers the batch: failures seen while a cable measure
+		// runs are its own link blip and are never counted.
+		quiet := w.measuring.Load()
 		n, err := recvmmsg(w.fd, hdrs, unix.MSG_WAITFORONE)
 		if n <= 0 {
-			if err != nil && err != unix.EAGAIN && err != unix.EINTR {
+			if err != nil && err != unix.EAGAIN && err != unix.EINTR && !quiet {
 				w.stats.rxErrs.Add(1)
 			}
 			continue
@@ -145,6 +149,9 @@ func (w *rxWorker) run(done *atomic.Bool) {
 			buf := bufs[i][:int(hdrs[i].len)]
 			p, st := parseHeader(buf)
 			if st != hdrOK {
+				if quiet {
+					continue
+				}
 				if st == hdrForeign {
 					w.stats.badMagic.Add(1)
 				} else {
@@ -158,18 +165,22 @@ func (w *rxWorker) run(done *atomic.Bool) {
 			// The ethertype this socket is bound to already says which stream the
 			// frame belongs to, so a header naming another one is damaged, as is a
 			// sequence number the sender never reached.
-			if p.stream != w.stream || !w.loss.observe(p.seq) {
-				w.stats.badHdr.Add(1)
+			if p.stream != w.stream || !w.loss.observe(p.seq, quiet) {
+				if !quiet {
+					w.stats.badHdr.Add(1)
+				}
 				continue
 			}
 
 			want, ok := w.spec.expectedCRC(p.patIdx, p.payLen)
 			if !ok {
-				w.stats.badLen.Add(1)
+				if !quiet {
+					w.stats.badLen.Add(1)
+				}
 				continue
 			}
 			pay := buf[minFrame : minFrame+p.payLen]
-			if crc32.Checksum(pay, crcTable) != want {
+			if crc32.Checksum(pay, crcTable) != want && !quiet {
 				w.stats.crcErr.Add(1)
 			}
 		}