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

counters.go

@@ -105,13 +105,14 @@ func sumFields(base string, fields []string) uint64 {
 const nicInterval = sampleInterval
 
 type nicPoller struct {
-	txBase string
-	rx     *statReader
-	total  *atomic.Uint64
-	raw    uint64
+	txBase    string
+	rx        *statReader
+	total     *atomic.Uint64
+	measuring *atomic.Bool
+	raw       uint64
 }
 
-func newNICPoller(fd int, txName, rxName string, total *atomic.Uint64) (*nicPoller, error) {
+func newNICPoller(fd int, txName, rxName string, total *atomic.Uint64, measuring *atomic.Bool) (*nicPoller, error) {
 	drv, err := ifDriver(rxName)
 	if err != nil {
 		return nil, err
@@ -125,9 +126,10 @@ func newNICPoller(fd int, txName, rxName string, total *atomic.Uint64) (*nicPoll
 		return nil, err
 	}
 	return &nicPoller{
-		txBase: "/sys/class/net/" + txName,
-		rx:     rx,
-		total:  total,
+		txBase:    "/sys/class/net/" + txName,
+		rx:        rx,
+		total:     total,
+		measuring: measuring,
 	}, nil
 }
 
@@ -142,10 +144,12 @@ func (p *nicPoller) read() uint64 {
 // Nic counters run from boot and restart from zero whenever the driver resets
 // its statistics, so only their forward motion is accumulated. Taking raw
 // differences instead charges a boot's worth of errors to the first sample and
-// turns a reset into a near-2^64 underflow.
+// turns a reset into a near-2^64 underflow. The hardware cannot pause its
+// counters for a cable measure, so its blip is suppressed here at the read:
+// the baseline tracks the raw values without accumulating until it is over.
 func (p *nicPoller) poll() {
 	raw := p.read()
-	if raw > p.raw {
+	if raw > p.raw && !p.measuring.Load() {
 		p.total.Add(raw - p.raw)
 	}
 	p.raw = raw