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Root cause analysis / Investigation

copilot.com

Reference RCA-465AB16D45A13567

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

02 Nov 2026 00:50 – 02 Nov 2026 04:24 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
22.778 ms
22.812 ms
22.838 ms
22.867 ms
22.823 ms
22.831 ms
22.789 ms
22.875 ms
22.832 ms
22.861 ms
22.896 ms
22.846 ms
22.784 ms
22.875 ms
22.819 ms
22.862 ms
22.823 ms
22.857 ms
22.805 ms
22.822 ms
22.868 ms
22.865 ms
22.863 ms
22.860 ms
22.819 ms
22.866 ms
22.840 ms
22.831 ms
22.833 ms
22.876 ms
22.842 ms
22.796 ms
22.815 ms
22.819 ms
22.833 ms
22.793 ms
22.829 ms
22.792 ms
22.876 ms
22.846 ms
22.822 ms
22.826 ms
22.834 ms
22.822 ms
22.834 ms
22.804 ms
22.834 ms
22.936 ms
22.865 ms
22.855 ms
22.848 ms
22.890 ms
23.003 ms
22.783 ms
22.832 ms
22.868 ms
22.858 ms
22.880 ms
22.851 ms
22.787 ms
22.816 ms
22.811 ms
22.818 ms
22.845 ms
22.854 ms
22.861 ms
22.861 ms
22.823 ms
22.868 ms
22.807 ms
22.837 ms
22.842 ms
22.827 ms
22.774 ms
22.810 ms
22.813 ms
22.871 ms
22.813 ms
22.868 ms
22.888 ms
22.879 ms
22.824 ms
23.239 ms
22.837 ms
22.781 ms
22.868 ms
22.892 ms
22.935 ms
22.854 ms
22.810 ms
6.547 ms
6.494 ms
6.549 ms
6.531 ms
6.525 ms
6.534 ms
6.513 ms
6.508 ms
6.496 ms
6.664 ms
6.669 ms
6.633 ms
6.681 ms
6.661 ms
6.646 ms
6.514 ms
6.503 ms
6.519 ms
6.578 ms
6.567 ms
6.539 ms
6.539 ms
6.508 ms
6.528 ms
6.506 ms
6.502 ms
6.508 ms
6.510 ms
6.497 ms
6.510 ms
22.841 ms
22.864 ms
22.789 ms
22.838 ms
22.903 ms
23.090 ms
22.846 ms
22.852 ms
22.828 ms
22.859 ms
22.846 ms
22.867 ms
22.814 ms
22.779 ms
22.882 ms
22.820 ms
22.840 ms
22.861 ms
22.859 ms
22.875 ms
22.845 ms
22.944 ms
22.968 ms
22.406 ms
22.513 ms
22.453 ms
22.890 ms
22.834 ms
22.852 ms
22.824 ms
22.843 ms
22.871 ms
22.919 ms
22.876 ms
22.812 ms
22.798 ms
22.914 ms
22.810 ms
22.863 ms
22.854 ms
22.855 ms
22.845 ms
22.831 ms
22.892 ms
22.859 ms
22.854 ms
22.985 ms
22.832 ms
22.874 ms
22.854 ms
22.825 ms
22.843 ms
22.855 ms
22.880 ms
22.784 ms
22.854 ms
22.883 ms
22.856 ms
22.818 ms
22.853 ms
22.844 ms
22.985 ms
22.870 ms
22.825 ms
22.875 ms
22.802 ms
22.939 ms
22.810 ms
22.813 ms
22.816 ms
22.830 ms
22.887 ms
22.822 ms
22.848 ms
22.836 ms
22.851 ms
22.814 ms
22.840 ms
22.845 ms
22.864 ms
22.840 ms
23.091 ms
22.789 ms
22.863 ms
22.898 ms
23.057 ms
23.021 ms
22.921 ms
22.830 ms
22.844 ms
21.878 ms
21.919 ms
21.914 ms
21.920 ms
22.839 ms
22.837 ms
22.828 ms
22.847 ms
6.292 ms
6.272 ms
6.271 ms
6.279 ms
6.264 ms
6.304 ms
6.265 ms
6.309 ms
6.253 ms
6.320 ms
6.282 ms
6.282 ms
6.267 ms
6.320 ms
6.273 ms
6.240 ms
6.281 ms
6.262 ms
6.270 ms
6.275 ms
6.295 ms
6.289 ms
6.269 ms
6.267 ms
6.290 ms
6.248 ms
6.260 ms
6.286 ms
6.278 ms
6.324 ms
6.286 ms
6.268 ms
6.288 ms
6.398 ms
6.461 ms
6.313 ms
6.326 ms
6.269 ms
6.262 ms
22.850 ms
22.820 ms
22.838 ms
22.918 ms
22.868 ms
22.906 ms
22.902 ms
22.827 ms
22.853 ms
22.856 ms
22.850 ms
22.805 ms
22.846 ms
22.834 ms
22.814 ms
22.866 ms
22.877 ms
22.889 ms
6.538 ms
6.544 ms
6.568 ms
6.533 ms
6.535 ms
6.556 ms
6.694 ms
6.654 ms
6.657 ms
6.658 ms
6.679 ms
6.648 ms
6.573 ms
6.595 ms
6.537 ms
6.532 ms
6.548 ms
6.554 ms
6.518 ms
6.535 ms
6.548 ms
6.566 ms
6.548 ms
6.578 ms
6.642 ms
6.551 ms
6.543 ms
6.539 ms
6.556 ms
6.533 ms
6.548 ms
6.539 ms
6.552 ms
6.534 ms
6.549 ms
6.555 ms
6.539 ms
6.544 ms
6.589 ms
6.546 ms
6.540 ms
6.534 ms
6.536 ms
6.550 ms
6.555 ms
6.533 ms
6.532 ms
6.537 ms
6.534 ms
6.604 ms
6.597 ms
6.531 ms
6.501 ms
6.513 ms
6.530 ms
6.522 ms
6.403 ms
6.385 ms
6.440 ms
6.396 ms
6.424 ms
6.387 ms
6.692 ms
6.711 ms
6.702 ms
6.700 ms
6.697 ms
6.742 ms
6.735 ms
6.596 ms
6.585 ms
6.578 ms
6.585 ms
6.622 ms
6.645 ms
6.745 ms
6.755 ms
6.703 ms
6.767 ms
6.738 ms
6.705 ms
6.733 ms
6.686 ms
6.753 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 3

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.116 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.897 msReply RTT ASN unavailable
  3. TTL 3 Probe hop1.407 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop23.657 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop23.490 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop24.848 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop23.280 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hop23.348 msReply RTT AS8075 · Microsoft
  9. TTL 9 Probe hop23.666 msReply RTT AS8075 · Microsoft
  10. TTL 10 Probe hop19.911 msReply RTT AS8075 · Microsoft
  11. TTL 11 Probe hop22.873 msReply RTT AS8075 · Microsoft
Before

TCP traceroute / 443 · Recorded address 3

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.163 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop1.379 msReply RTT ASN unavailable
  3. TTL 3 Probe hop6.428 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop23.397 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop23.361 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop23.599 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop24.014 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hopNo replyNo comparable RTT ASN unavailable
  9. TTL 9 Probe hop23.768 msReply RTT AS8075 · Microsoft
  10. TTL 10 Probe hop19.932 msReply RTT AS8075 · Microsoft
  11. TTL 11 Probe hop22.998 msReply RTT AS8075 · Microsoft
  12. TTL 12 Probe hopNo replyNo comparable RTT ASN unavailable
  13. TTL 13 Destination22.839 msReply RTT AS8075 · Microsoft
Before

ICMP traceroute · Recorded address 3

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.134 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop29.191 msReply RTT ASN unavailable
  3. TTL 3 Probe hop17.429 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop23.566 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop23.560 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop24.584 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop23.671 msReply RTT AS8075 · Microsoft
Before

TCP traceroute / 443 · Recorded address 3

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.158 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop6.779 msReply RTT ASN unavailable
  3. TTL 3 Probe hop1.447 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop23.662 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop23.839 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop23.469 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop32.845 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hop24.350 msReply RTT AS8075 · Microsoft
  9. TTL 9 Probe hop23.695 msReply RTT AS8075 · Microsoft
  10. TTL 10 Probe hop19.926 msReply RTT AS8075 · Microsoft
  11. TTL 11 Probe hop22.958 msReply RTT AS8075 · Microsoft
  12. TTL 12 Probe hopNo replyNo comparable RTT ASN unavailable
  13. TTL 13 Destination22.848 msReply RTT AS8075 · Microsoft
Before

TCP traceroute / 443 · Recorded address 3

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.169 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.866 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hopNo replyNo comparable RTT ASN unavailable
  4. TTL 4 Probe hop161.601 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop23.409 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop25.120 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop23.542 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hop23.994 msReply RTT AS8075 · Microsoft
  9. TTL 9 Probe hop23.777 msReply RTT AS8075 · Microsoft
  10. TTL 10 Probe hop68.758 msReply RTT AS8075 · Microsoft
  11. TTL 11 Probe hop22.827 msReply RTT AS8075 · Microsoft
  12. TTL 12 Probe hopNo replyNo comparable RTT ASN unavailable
  13. TTL 13 Destination23.099 msReply RTT AS8075 · Microsoft
During

ICMP traceroute · Recorded address 3

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.282 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop6.816 msReply RTT AS8075 · Microsoft
During

TCP traceroute / 443 · Recorded address 3

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.136 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop25.481 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hopNo replyNo comparable RTT ASN unavailable
  4. TTL 4 Probe hop23.426 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop119.965 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop85.154 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop24.228 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hop23.997 msReply RTT AS8075 · Microsoft
  9. TTL 9 Probe hop24.589 msReply RTT AS8075 · Microsoft
  10. TTL 10 Probe hop19.845 msReply RTT AS8075 · Microsoft
  11. TTL 11 Probe hop23.057 msReply RTT AS8075 · Microsoft
  12. TTL 12 Probe hopNo replyNo comparable RTT ASN unavailable
  13. TTL 13 Destination23.073 msReply RTT AS8075 · Microsoft
During

ICMP traceroute · Recorded address 3

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.134 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop1.092 msReply RTT ASN unavailable
  3. TTL 3 Probe hop2.189 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop23.485 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop23.653 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop24.805 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop23.323 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hop23.599 msReply RTT AS8075 · Microsoft
  9. TTL 9 Probe hop23.849 msReply RTT AS8075 · Microsoft
  10. TTL 10 Probe hop20.083 msReply RTT AS8075 · Microsoft
  11. TTL 11 Probe hop22.832 msReply RTT AS8075 · Microsoft
During

TCP traceroute / 443 · Recorded address 3

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.727 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.996 msReply RTT ASN unavailable
  3. TTL 3 Probe hop1.453 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop23.497 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop23.251 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop24.954 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop24.364 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hop23.989 msReply RTT AS8075 · Microsoft
  9. TTL 9 Probe hop23.620 msReply RTT AS8075 · Microsoft
  10. TTL 10 Probe hop20.235 msReply RTT AS8075 · Microsoft
  11. TTL 11 Probe hop22.972 msReply RTT AS8075 · Microsoft
  12. TTL 12 Probe hopNo replyNo comparable RTT ASN unavailable
  13. TTL 13 Destination22.961 msReply RTT AS8075 · Microsoft
During

ICMP traceroute · Recorded address 2

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.128 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop1.208 msReply RTT AS8075 · Microsoft
During

TCP traceroute / 443 · Recorded address 2

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.207 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.705 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop1.288 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hopNo replyNo comparable RTT ASN unavailable
  5. TTL 5 Probe hop7.143 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop7.565 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 Destination6.334 msReply RTT AS8075 · Microsoft
After

ICMP traceroute · Recorded address 2

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.220 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop1.064 msReply RTT ASN unavailable
After

TCP traceroute / 443 · Recorded address 2

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.142 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.834 msReply RTT ASN unavailable
  3. TTL 3 Probe hop0.752 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop6.919 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop6.805 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop7.312 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop8.149 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 Destination7.151 msReply RTT AS8075 · Microsoft
After

ICMP traceroute · Recorded address 1

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.127 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop1.093 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop0.964 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop7.172 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop7.030 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop8.109 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop7.045 msReply RTT AS8075 · Microsoft
After

TCP traceroute / 443 · Recorded address 1

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.153 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop3.121 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hopNo replyNo comparable RTT ASN unavailable
  4. TTL 4 Probe hop7.268 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hopNo replyNo comparable RTT ASN unavailable
  6. TTL 6 Probe hop7.356 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop8.782 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 Destination6.438 msReply RTT AS8075 · Microsoft
After

ICMP traceroute · Recorded address 4

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.161 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.803 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop1.752 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop9.146 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop7.450 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop7.888 msReply RTT AS8075 · Microsoft
After

TCP traceroute / 443 · Recorded address 4

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.160 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop1.032 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hopNo replyNo comparable RTT ASN unavailable
  4. TTL 4 Probe hop6.712 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hopNo replyNo comparable RTT ASN unavailable
  6. TTL 6 Probe hop6.398 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 Destination6.761 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 3

Before: UTC · During: UTC

Same destination address and probe method. A matching TTL does not establish the same forwarding path.
TTLBefore RTTDuring RTTResponding address
10.134 msAS8002 · Stealth0.282 msAS8002 · StealthSame responder
229.191 ms6.816 msAS8075 · MicrosoftSame responder
317.429 msAS8075 · MicrosoftNot recordedNot established
423.566 msAS8075 · MicrosoftNot recordedNot established
523.560 msAS8075 · MicrosoftNot recordedNot established
624.584 msAS8075 · MicrosoftNot recordedNot established
723.671 msAS8075 · MicrosoftNot recordedNot established
TCP traceroute / 443 · Recorded address 3

Before: UTC · During: UTC

Same destination address and probe method. A matching TTL does not establish the same forwarding path.
TTLBefore RTTDuring RTTResponding address
10.169 msAS8002 · Stealth0.136 msAS8002 · StealthSame responder
20.866 msAS8075 · Microsoft25.481 msAS8075 · MicrosoftSame responder
3No replyNo replyNot established
4161.601 msAS8075 · Microsoft23.426 msAS8075 · MicrosoftDifferent responders
523.409 msAS8075 · Microsoft119.965 msAS8075 · MicrosoftDifferent responders
625.120 msAS8075 · Microsoft85.154 msAS8075 · MicrosoftDifferent responders
723.542 msAS8075 · Microsoft24.228 msAS8075 · MicrosoftDifferent responders
823.994 msAS8075 · Microsoft23.997 msAS8075 · MicrosoftDifferent responders
923.777 msAS8075 · Microsoft24.589 msAS8075 · MicrosoftDifferent responders
1068.758 msAS8075 · Microsoft19.845 msAS8075 · MicrosoftDifferent responders
1122.827 msAS8075 · Microsoft23.057 msAS8075 · MicrosoftDifferent responders
12No replyNo replyNot established
1323.099 msAS8075 · Microsoft23.073 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 RTT6.522 msUsual round trip before the event
Last recorded event RTT6.289 msLast successful event recording
Event p95 RTT22.942 ms95th percentile of successful recordings
Change from baseline-0.233 msLast event RTT compared with the baseline
Successful / expected recordings190 / 190Recorded 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