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Root cause analysis / Investigation

copilot.com

Reference RCA-5A93CE3920D094FF

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.

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

05 Nov 2026 09:15 – 05 Nov 2026 12:14 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.
Recorded at (UTC)RTT
22.869 ms
22.881 ms
22.886 ms
22.867 ms
22.829 ms
22.888 ms
22.842 ms
22.876 ms
22.858 ms
22.899 ms
22.875 ms
22.855 ms
22.866 ms
22.974 ms
22.883 ms
22.807 ms
22.795 ms
22.891 ms
22.894 ms
22.857 ms
22.048 ms
21.967 ms
21.942 ms
21.930 ms
21.931 ms
21.940 ms
21.911 ms
22.919 ms
22.872 ms
22.883 ms
22.780 ms
22.866 ms
22.845 ms
22.798 ms
22.860 ms
22.943 ms
22.871 ms
22.844 ms
22.807 ms
22.869 ms
22.838 ms
22.868 ms
22.902 ms
22.912 ms
22.902 ms
22.835 ms
22.879 ms
22.887 ms
22.871 ms
22.847 ms
22.826 ms
22.838 ms
22.870 ms
22.816 ms
22.853 ms
22.829 ms
22.904 ms
22.903 ms
22.427 ms
22.423 ms
22.437 ms
22.505 ms
22.610 ms
22.418 ms
22.483 ms
20.669 ms
20.680 ms
20.663 ms
20.639 ms
20.608 ms
20.668 ms
20.638 ms
20.725 ms
20.669 ms
20.716 ms
20.664 ms
20.677 ms
20.742 ms
20.633 ms
20.703 ms
20.728 ms
20.692 ms
22.431 ms
22.398 ms
22.458 ms
22.415 ms
22.443 ms
22.357 ms
22.403 ms
22.385 ms
6.851 ms
6.855 ms
6.853 ms
6.863 ms
6.840 ms
6.855 ms
6.885 ms
6.848 ms
6.888 ms
6.757 ms
6.760 ms
6.742 ms
6.778 ms
6.729 ms
6.732 ms
6.727 ms
6.734 ms
6.741 ms
6.739 ms
6.740 ms
6.784 ms
6.730 ms
6.740 ms
6.745 ms
6.870 ms
6.854 ms
6.873 ms
6.878 ms
6.875 ms
6.907 ms
6.869 ms
6.852 ms
6.714 ms
6.731 ms
6.765 ms
22.838 ms
22.808 ms
22.855 ms
22.878 ms
22.842 ms
22.836 ms
22.872 ms
22.905 ms
22.854 ms
22.841 ms
22.903 ms
22.905 ms
22.882 ms
22.904 ms
22.852 ms
22.861 ms
22.864 ms
22.811 ms
22.863 ms
22.903 ms
22.898 ms
22.913 ms
22.893 ms
22.886 ms
22.839 ms
22.843 ms
22.835 ms
22.839 ms
22.862 ms
22.876 ms
22.886 ms
22.877 ms
22.824 ms
22.871 ms
22.837 ms
22.873 ms
22.875 ms
22.891 ms
22.867 ms
22.848 ms
22.825 ms
22.907 ms
22.847 ms
22.843 ms
22.879 ms
22.862 ms
22.849 ms
22.841 ms
22.917 ms
22.860 ms
22.900 ms
22.868 ms
22.857 ms
22.874 ms
22.862 ms
22.900 ms
22.907 ms
22.846 ms
22.849 ms
22.849 ms
22.856 ms
22.926 ms
22.858 ms
22.458 ms
22.480 ms
22.394 ms
22.372 ms
22.409 ms
22.435 ms
22.425 ms
22.377 ms
22.712 ms
22.375 ms
22.394 ms
22.414 ms
22.670 ms
22.419 ms
6.384 ms
6.367 ms
6.409 ms
6.474 ms
6.385 ms
6.384 ms
6.399 ms
6.387 ms
6.425 ms
6.391 ms
6.386 ms
6.391 ms
6.421 ms
6.409 ms
6.381 ms
6.369 ms
6.402 ms
6.409 ms
6.378 ms
6.415 ms
6.380 ms
6.420 ms
6.539 ms
6.520 ms
6.540 ms
6.537 ms
6.518 ms
6.533 ms
6.502 ms
6.568 ms
6.540 ms
6.527 ms
6.520 ms
6.550 ms
6.521 ms
6.534 ms
6.522 ms
6.519 ms
6.525 ms
6.516 ms
6.514 ms
6.499 ms
6.493 ms
6.513 ms
6.516 ms
6.521 ms
6.668 ms
6.655 ms
6.650 ms
6.670 ms
6.643 ms
6.642 ms
6.557 ms
6.524 ms
6.519 ms
6.518 ms
6.540 ms
6.524 ms
6.518 ms
6.497 ms
6.499 ms
6.562 ms
6.511 ms
6.510 ms
6.517 ms
6.507 ms
6.520 ms
6.529 ms
6.517 ms
6.549 ms
6.530 ms
6.579 ms
6.537 ms
6.659 ms
6.668 ms
6.670 ms
6.656 ms
6.638 ms
6.646 ms
6.628 ms
6.647 ms
6.652 ms
6.630 ms
6.647 ms
6.629 ms
6.664 ms
6.653 ms
6.649 ms
6.573 ms
6.571 ms
6.513 ms
6.537 ms
6.524 ms
6.548 ms
6.541 ms
6.499 ms
6.521 ms
6.511 ms
6.537 ms
6.539 ms
6.529 ms
6.512 ms
6.505 ms
6.518 ms
6.541 ms
6.541 ms
6.549 ms
6.503 ms
6.523 ms
6.514 ms
6.567 ms
6.529 ms
6.517 ms
6.570 ms
6.523 ms
6.534 ms
6.642 ms
6.738 ms
6.756 ms
6.821 ms
6.733 ms
6.752 ms
6.737 ms
6.756 ms
6.773 ms
6.755 ms
6.723 ms
6.742 ms
6.787 ms
6.737 ms
6.724 ms
6.752 ms
6.714 ms
6.741 ms
6.751 ms
6.760 ms
6.749 ms
6.739 ms
6.719 ms
6.774 ms
6.740 ms
6.737 ms
6.749 ms
6.757 ms
6.734 ms
6.785 ms
6.716 ms
6.769 ms
6.758 ms
6.753 ms
6.733 ms
6.735 ms
6.737 ms
6.726 ms
6.751 ms
6.736 ms
6.748 ms
Network path / recorded observations

Network path observations.

16 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 4

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.137 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop1.327 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop2.167 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop108.131 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop23.822 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop23.460 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop23.435 msReply RTT AS8075 · Microsoft
Before

TCP traceroute / 443 · Recorded address 4

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.228 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop1.558 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hopNo replyNo comparable RTT ASN unavailable
  4. TTL 4 Probe hop24.004 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop23.285 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop23.829 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop24.097 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hopNo replyNo comparable RTT ASN unavailable
  9. TTL 9 Probe hop23.851 msReply RTT AS8075 · Microsoft
  10. TTL 10 Probe hop19.784 msReply RTT AS8075 · Microsoft
  11. TTL 11 Probe hop22.985 msReply RTT AS8075 · Microsoft
  12. TTL 12 Probe hopNo replyNo comparable RTT ASN unavailable
  13. TTL 13 Destination23.023 msReply RTT AS8075 · Microsoft
Before

ICMP traceroute · Recorded address 4

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.120 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop4.201 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop1.913 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop23.448 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop23.242 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop23.395 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop24.646 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hop24.114 msReply RTT AS8075 · Microsoft
  9. TTL 9 Probe hop23.031 msReply RTT AS8075 · Microsoft
  10. TTL 10 Probe hop23.513 msReply RTT AS8075 · Microsoft
  11. TTL 11 Probe hop24.798 msReply RTT AS8075 · Microsoft
  12. TTL 12 Probe hop23.225 msReply RTT AS8075 · Microsoft
  13. TTL 13 Probe hop19.506 msReply RTT AS8075 · Microsoft
  14. TTL 14 Probe hop22.565 msReply RTT AS8075 · Microsoft
Before

TCP traceroute / 443 · Recorded address 4

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.164 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hopNo replyNo comparable RTT ASN unavailable
  3. TTL 3 Probe hopNo replyNo comparable RTT ASN unavailable
  4. TTL 4 Probe hop21.907 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop22.301 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop23.672 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop23.098 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hop22.883 msReply RTT AS8075 · Microsoft
  9. TTL 9 Probe hop21.899 msReply RTT AS8075 · Microsoft
  10. TTL 10 Probe hop18.281 msReply RTT AS8075 · Microsoft
  11. TTL 11 Probe hop38.557 msReply RTT AS8075 · Microsoft
  12. TTL 12 Probe hopNo replyNo comparable RTT ASN unavailable
  13. TTL 13 Destination21.182 msReply RTT AS8075 · Microsoft
During

ICMP traceroute · Recorded address 2

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.129 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.777 msReply RTT AS8075 · Microsoft
During

TCP traceroute / 443 · Recorded address 2

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.160 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop1.280 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hopNo replyNo comparable RTT ASN unavailable
  4. TTL 4 Probe hop6.758 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop7.027 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 Destination6.473 msReply RTT AS8075 · Microsoft
During

ICMP traceroute · Recorded address 4

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.155 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop1.255 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop1.712 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop23.764 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop23.665 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop25.041 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop23.520 msReply RTT AS8075 · Microsoft
During

TCP traceroute / 443 · Recorded address 4

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.147 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop1.321 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hopNo replyNo comparable RTT ASN unavailable
  4. TTL 4 Probe hop23.630 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop23.414 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop24.199 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop24.326 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hop24.325 msReply RTT AS8075 · Microsoft
  9. TTL 9 Probe hop23.867 msReply RTT AS8075 · Microsoft
  10. TTL 10 Probe hop19.942 msReply RTT AS8075 · Microsoft
  11. TTL 11 Probe hop24.111 msReply RTT AS8075 · Microsoft
  12. TTL 12 Probe hopNo replyNo comparable RTT ASN unavailable
  13. TTL 13 Destination23.010 msReply RTT AS8075 · Microsoft
During

ICMP traceroute · Recorded address 3

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.169 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop5.408 msReply RTT AS8075 · Microsoft
During

TCP traceroute / 443 · Recorded address 3

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.144 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop5.982 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hopNo replyNo comparable RTT ASN unavailable
  4. TTL 4 Probe hop6.935 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop8.713 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop7.328 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 Probe hopNo replyNo comparable RTT ASN unavailable
  12. TTL 12 Destination6.655 msReply RTT AS8075 · Microsoft
After

ICMP traceroute · Recorded address 3

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.143 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop1.001 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop7.792 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop7.213 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop8.551 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop8.098 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop7.043 msReply RTT AS8075 · Microsoft
After

TCP traceroute / 443 · Recorded address 3

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.262 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.960 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hopNo replyNo comparable RTT ASN unavailable
  4. TTL 4 Probe hop6.884 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop8.000 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 Destination6.613 msReply RTT AS8075 · Microsoft
After

ICMP traceroute · Recorded address 3

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.130 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop1.220 msReply RTT AS8075 · Microsoft
After

TCP traceroute / 443 · Recorded address 3

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.148 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.770 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop0.959 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop54.558 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop8.242 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop8.099 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 Destination6.626 msReply RTT AS8075 · Microsoft
After

ICMP traceroute · Recorded address 1

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.126 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop65.169 msReply RTT ASN unavailable
  3. TTL 3 Probe hop1.125 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop6.939 msReply RTT AS8075 · Microsoft
After

TCP traceroute / 443 · Recorded address 1

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.142 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hopNo replyNo comparable RTT ASN unavailable
  3. TTL 3 Probe hop27.412 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop6.673 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hopNo replyNo comparable RTT ASN unavailable
  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 Destination6.775 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.

ICMP traceroute · Recorded address 4

Before: UTC · During: UTC

Same destination address and probe method. A matching TTL does not establish the same forwarding path.
TTLBefore RTTDuring RTTResponding address
10.120 msAS8002 · Stealth0.155 msAS8002 · StealthSame responder
24.201 msAS8075 · Microsoft1.255 msAS8075 · MicrosoftSame responder
31.913 msAS8075 · Microsoft1.712 msAS8075 · MicrosoftSame responder
423.448 msAS8075 · Microsoft23.764 msAS8075 · MicrosoftSame responder
523.242 msAS8075 · Microsoft23.665 msAS8075 · MicrosoftSame responder
623.395 msAS8075 · Microsoft25.041 msAS8075 · MicrosoftDifferent responders
724.646 msAS8075 · Microsoft23.520 msAS8075 · MicrosoftDifferent responders
824.114 msAS8075 · MicrosoftNot recordedNot established
923.031 msAS8075 · MicrosoftNot recordedNot established
1023.513 msAS8075 · MicrosoftNot recordedNot established
1124.798 msAS8075 · MicrosoftNot recordedNot established
1223.225 msAS8075 · MicrosoftNot recordedNot established
1319.506 msAS8075 · MicrosoftNot recordedNot established
1422.565 msAS8075 · MicrosoftNot recordedNot established
TCP traceroute / 443 · Recorded address 4

Before: UTC · During: UTC

Same destination address and probe method. A matching TTL does not establish the same forwarding path.
TTLBefore RTTDuring RTTResponding address
10.164 msAS8002 · Stealth0.147 msAS8002 · StealthSame responder
2No reply1.321 msAS8075 · MicrosoftNot established
3No replyNo replyNot established
421.907 msAS8075 · Microsoft23.630 msAS8075 · MicrosoftSame responder
522.301 msAS8075 · Microsoft23.414 msAS8075 · MicrosoftDifferent responders
623.672 msAS8075 · Microsoft24.199 msAS8075 · MicrosoftDifferent responders
723.098 msAS8075 · Microsoft24.326 msAS8075 · MicrosoftDifferent responders
822.883 msAS8075 · Microsoft24.325 msAS8075 · MicrosoftSame responder
921.899 msAS8075 · Microsoft23.867 msAS8075 · MicrosoftSame responder
1018.281 msAS8075 · Microsoft19.942 msAS8075 · MicrosoftSame responder
1138.557 msAS8075 · Microsoft24.111 msAS8075 · MicrosoftSame responder
12No replyNo replyNot established
1321.182 msAS8075 · Microsoft23.010 msAS8075 · MicrosoftSame responder

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.
  • Stored traces were compared using matching source and destination addresses.
  • 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 RTT6.746 msUsual round trip before the event
Last recorded event RTT6.519 msLast successful event recording
Event p95 RTT22.905 ms95th percentile of successful recordings
Change from baseline-0.226 msLast event RTT compared with the baseline
Successful / expected recordings120 / 120Recorded 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