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Root cause analysis / Investigation

copilot.com

Reference RCA-C415045E5C4EC747

Microsoft Chat website

Measurement point: Stealth NYC, 32 Avenue of the Americas.

Published investigation. Updates run automatically.

01 / Network path

Network path.

Endpoint measurements / ICMP IPv4

Latency over time.

Successful endpoint RTT recordings from up to one hour before and after the event. Points are sampled from the retained history.

Enter time range

Times use the selected timezone; choices include recorded samples and intervals across the available chart.

Use the recordings table below to view latency values.
Successful RTT recording Event interval

06 Nov 2026 05:25 – 06 Nov 2026 08:39 UTC. Hover or tap to inspect; drag across the chart to zoom. On touchscreens, first choose Select time range. Escape or Reset zoom restores the full range. Missing recordings are gaps; this is not an application availability or packet-loss chart.

Select a recording to explore nearby path observations.

View recorded values
Successful ICMP IPv4 RTT recordings; displayed points are a sample of the retained records.
Recorded at (UTC)RTT
6.717 ms
6.763 ms
6.720 ms
6.727 ms
6.724 ms
6.735 ms
6.775 ms
6.720 ms
6.766 ms
6.777 ms
6.746 ms
6.726 ms
6.776 ms
6.730 ms
6.766 ms
6.742 ms
6.735 ms
6.720 ms
6.799 ms
6.764 ms
6.709 ms
6.749 ms
6.751 ms
6.768 ms
6.759 ms
6.732 ms
6.758 ms
6.725 ms
6.740 ms
6.778 ms
6.737 ms
6.728 ms
6.778 ms
6.778 ms
6.763 ms
6.767 ms
6.732 ms
6.734 ms
6.741 ms
6.752 ms
6.720 ms
6.716 ms
6.774 ms
6.747 ms
6.739 ms
6.723 ms
6.766 ms
6.735 ms
6.764 ms
6.741 ms
6.730 ms
6.775 ms
6.738 ms
6.748 ms
6.739 ms
6.744 ms
6.733 ms
6.735 ms
6.771 ms
6.840 ms
6.745 ms
6.732 ms
6.752 ms
6.775 ms
6.739 ms
6.730 ms
6.733 ms
6.733 ms
6.724 ms
6.713 ms
6.756 ms
6.744 ms
6.736 ms
6.718 ms
6.735 ms
6.725 ms
6.728 ms
6.725 ms
6.734 ms
6.713 ms
6.722 ms
6.756 ms
6.761 ms
6.702 ms
6.728 ms
6.748 ms
6.752 ms
6.746 ms
6.726 ms
6.727 ms
6.744 ms
6.753 ms
6.753 ms
6.760 ms
6.716 ms
6.726 ms
6.755 ms
6.724 ms
6.721 ms
6.738 ms
6.751 ms
6.766 ms
6.749 ms
6.724 ms
6.739 ms
6.776 ms
6.736 ms
6.724 ms
6.745 ms
6.741 ms
6.740 ms
6.742 ms
6.724 ms
6.728 ms
6.753 ms
6.767 ms
6.739 ms
6.753 ms
6.734 ms
6.799 ms
6.741 ms
6.748 ms
6.856 ms
22.890 ms
6.359 ms
6.339 ms
22.803 ms
6.410 ms
22.881 ms
22.847 ms
22.880 ms
22.904 ms
22.876 ms
22.847 ms
22.876 ms
22.858 ms
22.857 ms
22.848 ms
22.827 ms
22.823 ms
22.835 ms
22.818 ms
22.913 ms
22.874 ms
22.480 ms
22.434 ms
22.403 ms
22.394 ms
22.383 ms
22.440 ms
22.490 ms
22.440 ms
22.414 ms
22.346 ms
22.427 ms
22.910 ms
22.799 ms
22.891 ms
22.852 ms
22.850 ms
22.895 ms
22.843 ms
22.872 ms
22.874 ms
22.836 ms
22.867 ms
22.898 ms
22.868 ms
22.842 ms
22.842 ms
22.829 ms
22.890 ms
22.850 ms
22.877 ms
22.818 ms
22.896 ms
22.400 ms
22.346 ms
22.408 ms
22.447 ms
22.415 ms
22.394 ms
22.455 ms
22.445 ms
22.462 ms
22.454 ms
22.420 ms
22.948 ms
22.850 ms
22.830 ms
22.879 ms
22.850 ms
22.856 ms
22.924 ms
22.857 ms
22.818 ms
22.880 ms
22.881 ms
22.801 ms
22.869 ms
22.845 ms
22.849 ms
22.898 ms
22.885 ms
22.802 ms
22.888 ms
22.837 ms
22.824 ms
22.862 ms
22.423 ms
22.432 ms
22.436 ms
6.648 ms
6.696 ms
6.668 ms
6.638 ms
6.636 ms
6.639 ms
6.651 ms
6.627 ms
6.304 ms
6.300 ms
6.282 ms
6.319 ms
6.275 ms
6.273 ms
6.705 ms
6.638 ms
6.660 ms
6.634 ms
6.640 ms
6.631 ms
6.628 ms
6.677 ms
6.651 ms
6.633 ms
6.660 ms
6.626 ms
6.648 ms
6.626 ms
6.651 ms
6.641 ms
6.704 ms
6.645 ms
6.657 ms
6.665 ms
6.628 ms
6.635 ms
6.651 ms
6.678 ms
6.686 ms
6.699 ms
6.649 ms
6.650 ms
6.634 ms
6.650 ms
6.310 ms
6.316 ms
6.310 ms
6.274 ms
6.298 ms
6.334 ms
6.292 ms
22.961 ms
22.914 ms
22.861 ms
22.874 ms
22.816 ms
22.836 ms
22.819 ms
22.840 ms
22.850 ms
22.847 ms
22.819 ms
22.844 ms
22.895 ms
22.855 ms
22.912 ms
22.893 ms
22.892 ms
22.851 ms
22.858 ms
22.832 ms
22.843 ms
22.839 ms
22.893 ms
22.886 ms
22.837 ms
22.837 ms
22.863 ms
22.806 ms
22.809 ms
22.913 ms
22.840 ms
22.877 ms
22.782 ms
22.839 ms
22.933 ms
21.915 ms
21.932 ms
21.990 ms
21.961 ms
21.956 ms
21.905 ms
21.947 ms
22.894 ms
22.851 ms
22.906 ms
22.860 ms
22.846 ms
22.825 ms
22.849 ms
22.836 ms
22.847 ms
22.896 ms
22.857 ms
22.819 ms
22.976 ms
22.896 ms
22.907 ms
22.881 ms
22.881 ms
22.862 ms
22.886 ms
22.820 ms
22.831 ms
22.839 ms
22.902 ms
22.888 ms
22.852 ms
22.869 ms
22.840 ms
22.823 ms
22.887 ms
22.854 ms
22.880 ms
22.812 ms
22.874 ms
22.873 ms
22.915 ms
22.842 ms
22.869 ms
22.828 ms
22.841 ms
22.875 ms
22.874 ms
22.813 ms
22.885 ms
22.819 ms
22.883 ms
22.849 ms
22.847 ms
22.869 ms
22.910 ms
22.848 ms
22.907 ms
22.872 ms
22.862 ms
22.865 ms
Network path / recorded observations

Network path observations.

17 observations

Choose a measurement type to see the closest of the available sampled observations to the selected chart point. Each probe is separate and may follow a different path.

Before

ICMP traceroute · Recorded address 1

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.122 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop1.201 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop1.806 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop6.966 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop6.692 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop6.973 msReply RTT AS8075 · Microsoft
Before

TCP traceroute / 443 · Recorded address 1

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.161 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hopNo replyNo comparable RTT ASN unavailable
  3. TTL 3 Probe hop0.860 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop6.637 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hopNo replyNo comparable RTT ASN unavailable
  6. TTL 6 Probe hop8.392 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hopNo replyNo comparable RTT ASN unavailable
  8. TTL 8 Probe hopNo replyNo comparable RTT ASN unavailable
  9. TTL 9 Probe hopNo replyNo comparable RTT ASN unavailable
  10. TTL 10 Probe hopNo replyNo comparable RTT ASN unavailable
  11. TTL 11 Destination6.477 msReply RTT AS8075 · Microsoft
Before

ICMP traceroute · Recorded address 1

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.138 msReply RTT AS8002 · Stealth
Before

TCP traceroute / 443 · Recorded address 1

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.193 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop5.440 msReply RTT ASN unavailable
  3. TTL 3 Probe hopNo replyNo comparable RTT ASN unavailable
  4. TTL 4 Probe hop6.850 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop8.361 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop7.830 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hopNo replyNo comparable RTT ASN unavailable
  8. TTL 8 Probe hopNo replyNo comparable RTT ASN unavailable
  9. TTL 9 Probe hopNo replyNo comparable RTT ASN unavailable
  10. TTL 10 Probe hopNo replyNo comparable RTT ASN unavailable
  11. TTL 11 Destination6.460 msReply RTT AS8075 · Microsoft
Before

TCP traceroute / 443 · Recorded address 1

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.144 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop3.072 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop1.538 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop7.047 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop6.679 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop6.849 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hopNo replyNo comparable RTT ASN unavailable
  8. TTL 8 Probe hopNo replyNo comparable RTT ASN unavailable
  9. TTL 9 Probe hopNo replyNo comparable RTT ASN unavailable
  10. TTL 10 Probe hopNo replyNo comparable RTT ASN unavailable
  11. TTL 11 Destination6.488 msReply RTT AS8075 · Microsoft
During

ICMP traceroute · Recorded address 2

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.156 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.925 msReply RTT AS8075 · Microsoft
During

TCP traceroute / 443 · Recorded address 2

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.146 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hopNo replyNo comparable RTT ASN unavailable
  3. TTL 3 Probe hop1.286 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop6.805 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop6.949 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop6.821 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hopNo replyNo comparable RTT ASN unavailable
  8. TTL 8 Probe hopNo replyNo comparable RTT ASN unavailable
  9. TTL 9 Probe hopNo replyNo comparable RTT ASN unavailable
  10. TTL 10 Probe hopNo replyNo comparable RTT ASN unavailable
  11. TTL 11 Destination6.892 msReply RTT AS8075 · Microsoft
During

ICMP traceroute · Recorded address 4

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.225 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop1.064 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop1.604 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop23.238 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop23.116 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop23.168 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop23.451 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hop23.463 msReply RTT AS8075 · Microsoft
  9. TTL 9 Probe hop24.472 msReply RTT AS8075 · Microsoft
  10. TTL 10 Probe hop24.565 msReply RTT AS8075 · Microsoft
  11. TTL 11 Probe hop23.482 msReply RTT AS8075 · Microsoft
  12. TTL 12 Probe hop23.901 msReply RTT AS8075 · Microsoft
  13. TTL 13 Probe hop19.553 msReply RTT AS8075 · Microsoft
  14. TTL 14 Probe hop22.558 msReply RTT AS8075 · Microsoft
During

TCP traceroute / 443 · Recorded address 4

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.146 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.872 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop1.826 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop26.351 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop23.014 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop23.190 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop23.364 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hop24.268 msReply RTT AS8075 · Microsoft
  9. TTL 9 Probe hop24.678 msReply RTT AS8075 · Microsoft
  10. TTL 10 Probe hop24.332 msReply RTT AS8075 · Microsoft
  11. TTL 11 Probe hop24.303 msReply RTT AS8075 · Microsoft
  12. TTL 12 Probe hop23.149 msReply RTT AS8075 · Microsoft
  13. TTL 13 Probe hop19.493 msReply RTT AS8075 · Microsoft
  14. TTL 14 Probe hop22.654 msReply RTT AS8075 · Microsoft
  15. TTL 15 Probe hopNo replyNo comparable RTT ASN unavailable
  16. TTL 16 Destination22.432 msReply RTT AS8075 · Microsoft
During

ICMP traceroute · Recorded address 3

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.139 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop33.964 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop0.855 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop7.414 msReply RTT AS8075 · Microsoft
During

TCP traceroute / 443 · Recorded address 3

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.664 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop7.049 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop0.748 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop6.783 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop8.140 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hopNo replyNo comparable RTT ASN unavailable
  7. TTL 7 Probe hopNo replyNo comparable RTT ASN unavailable
  8. TTL 8 Probe hopNo replyNo comparable RTT ASN unavailable
  9. TTL 9 Probe hopNo replyNo comparable RTT ASN unavailable
  10. TTL 10 Probe hopNo replyNo comparable RTT ASN unavailable
  11. TTL 11 Destination6.645 msReply RTT AS8075 · Microsoft
After

ICMP traceroute · Recorded address 3

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.138 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop32.249 msReply RTT AS8075 · Microsoft
After

TCP traceroute / 443 · Recorded address 3

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.160 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.747 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hopNo replyNo comparable RTT ASN unavailable
  4. TTL 4 Probe hop7.319 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hopNo replyNo comparable RTT ASN unavailable
  6. TTL 6 Probe hop7.069 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop6.443 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hopNo replyNo comparable RTT ASN unavailable
  9. TTL 9 Probe hopNo replyNo comparable RTT ASN unavailable
  10. TTL 10 Probe hopNo replyNo comparable RTT ASN unavailable
  11. TTL 11 Probe hopNo replyNo comparable RTT ASN unavailable
  12. TTL 12 Destination6.466 msReply RTT AS8075 · Microsoft
After

ICMP traceroute · Recorded address 4

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.139 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop1.719 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop1.763 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop22.019 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop23.426 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop22.711 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop22.758 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hop22.390 msReply RTT AS8075 · Microsoft
  9. TTL 9 Probe hop22.864 msReply RTT AS8075 · Microsoft
  10. TTL 10 Probe hop18.979 msReply RTT AS8075 · Microsoft
  11. TTL 11 Probe hop22.008 msReply RTT AS8075 · Microsoft
After

TCP traceroute / 443 · Recorded address 4

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.177 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.765 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop9.539 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop22.174 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop23.604 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop21.736 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop22.822 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hop22.604 msReply RTT AS8075 · Microsoft
  9. TTL 9 Probe hop22.246 msReply RTT AS8075 · Microsoft
  10. TTL 10 Probe hop18.348 msReply RTT AS8075 · Microsoft
  11. TTL 11 Probe hop29.467 msReply RTT AS8075 · Microsoft
  12. TTL 12 Probe hopNo replyNo comparable RTT ASN unavailable
  13. TTL 13 Destination21.683 msReply RTT AS8075 · Microsoft
After

ICMP traceroute · Recorded address 4

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.139 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop1.112 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop1.406 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop23.933 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop23.572 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop23.624 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop24.066 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hop23.165 msReply RTT AS8075 · Microsoft
  9. TTL 9 Probe hop23.793 msReply RTT AS8075 · Microsoft
  10. TTL 10 Probe hop20.071 msReply RTT AS8075 · Microsoft
  11. TTL 11 Probe hop23.133 msReply RTT AS8075 · Microsoft
After

TCP traceroute / 443 · Recorded address 4

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.151 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop9.336 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop1.303 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop23.655 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop23.731 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop23.402 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop24.022 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hop24.157 msReply RTT AS8075 · Microsoft
  9. TTL 9 Probe hop23.779 msReply RTT AS8075 · Microsoft
  10. TTL 10 Probe hop19.769 msReply RTT AS8075 · Microsoft
  11. TTL 11 Probe hop22.971 msReply RTT AS8075 · Microsoft
  12. TTL 12 Probe hopNo replyNo comparable RTT ASN unavailable
  13. TTL 13 Destination23.052 msReply RTT AS8075 · Microsoft

RTT is the round trip to each responding hop, not the delay of the preceding link. TTL order may omit routers and does not prove direct links. A missing reply is not proof of packet loss. ASN labels are dated address associations; they do not establish the forwarding path or the operator at the event time. Up to three recorded traces per method and period are selected across the archive. Where no individual trace is available, a comparison may summarize a window; MTR observations aggregate multiple probes. Address aliases are independent across measurement types.

Same method / same recorded address

Compare the traces.

Compare one selected trace from before the event with one during it. Values are individual replies, not a statistical comparison.

No same-address, same-method pair is available among the selected replay samples. This does not mean no other matching traces were recorded.

RTTs include the return path. Different responders, missing replies and independent probe flows limit what a change can localize. MTR snapshots remain separate in the replay.

Event timeline.

Possible SLA event. Times shown are UTC.

Event opened
UTC
Last event observation
UTC
Recovery observed
UTC

Recorded recovery describes this event, not current reachability.

02 / Assessment

Assessment.

Investigation stateRecovered
Path assessment

Elevated latency observed.

Endpoint round-trip time was elevated during part of the event. The available path observations do not identify where the increase occurred.

What we observed

  • A sustained increase in measured round trip time was observed.
  • The measured destination address changed across the comparison period.

Recording counts describe collected measurements, not application availability or packet loss. Exact packet paths and the return path remain unverified.

Measurements at a glance.

Baseline RTT6.742 msUsual round trip before the event
Last recorded event RTT6.626 msLast successful event recording
Event p95 RTT22.896 ms95th percentile of successful recordings
Change from baseline-0.116 msLast event RTT compared with the baseline
Successful / expected recordings150 / 150Recorded endpoint samples during the event

RTT is round trip time; p95 describes the upper range of successful recordings. Endpoint measurements differ from individual trace replies and are not an uptime percentage.

Record sources and timestamps
Analysis updated
UTC
Public snapshot published
UTC
Public observation window
– UTC

Event and source timestamps are UTC. The latency chart uses its selected timezone. Page refresh times are separate from measurement timestamps.

03 / Method and limits

Method and limits.

How to interpret the sampled path and its limits

Corroborating the path.

Comparisons use matching destinations before and during the event. ICMP traces use echo probes. TCP/443 traces send SYN probes to port 443 only; they do not complete a TCP handshake or perform a TLS or HTTP exchange.

The Stealth gNMI interface verifies the active route-table choice and maps its primary next hop to the Stealth logical interface, configured attachment and, where applicable, the known LAG member set at each snapshot. Stable Stealth replies, together with mapped interface evidence showing no corresponding errors or sustained capacity pressure, reduce the likelihood of a Stealth forwarding issue. An 80% load warning warrants investigation; it does not prove congestion. Lower interval averages can conceal bursts or queue pressure. Optical readings assess the physical link, not congestion.

What remains unseen.

Probe reply handling can differ from packet forwarding. A slow intermediate reply that disappears at later hops does not locate a forwarding problem. A destination that does not respond to a trace is not thereby shown to be unavailable.

Stealth does not use ECMP in this monitored scope. The route snapshot does not identify which physical LAG member carried a particular independent probe, attest line-card forwarding at that packet instant, prove the exact application packet flow or observe the return path. RTT includes the return path, which may differ. No remote reverse traceroute is available. Tunnels and silent routers may hide parts of the path. Address registration alone does not establish the forwarding operator or responsibility.

References: ICMP reply handling / RFC 1812 · Round trip measurements / RFC 2681 · Full methodology