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Root cause analysis / Investigation

copilot.com

Reference RCA-10AA4D45E13972DF

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 06:50 – 06 Nov 2026 09:59 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
22.895 ms
22.843 ms
22.872 ms
22.874 ms
22.883 ms
22.836 ms
22.867 ms
22.898 ms
22.868 ms
22.844 ms
22.842 ms
22.842 ms
22.829 ms
22.890 ms
22.792 ms
22.850 ms
22.877 ms
22.818 ms
22.896 ms
22.873 ms
22.400 ms
22.346 ms
22.408 ms
22.447 ms
22.544 ms
22.415 ms
22.394 ms
22.455 ms
22.445 ms
22.354 ms
22.462 ms
22.454 ms
22.420 ms
22.948 ms
22.878 ms
22.850 ms
22.830 ms
22.879 ms
22.850 ms
22.873 ms
22.856 ms
22.924 ms
22.857 ms
22.818 ms
22.857 ms
22.880 ms
22.881 ms
22.801 ms
22.869 ms
22.883 ms
22.845 ms
22.849 ms
22.898 ms
22.885 ms
22.850 ms
22.802 ms
22.888 ms
22.837 ms
22.824 ms
22.870 ms
22.862 ms
22.423 ms
22.432 ms
22.436 ms
6.655 ms
6.648 ms
6.696 ms
6.668 ms
6.638 ms
6.669 ms
6.636 ms
6.639 ms
6.651 ms
6.627 ms
6.652 ms
6.304 ms
6.300 ms
6.282 ms
6.319 ms
6.303 ms
6.275 ms
6.273 ms
6.705 ms
6.638 ms
6.666 ms
6.660 ms
6.634 ms
6.640 ms
6.631 ms
6.656 ms
6.628 ms
6.677 ms
6.651 ms
6.633 ms
6.661 ms
6.660 ms
6.626 ms
6.648 ms
6.646 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
22.816 ms
22.836 ms
22.819 ms
22.840 ms
22.850 ms
22.847 ms
22.844 ms
22.895 ms
22.855 ms
22.912 ms
22.893 ms
22.892 ms
22.858 ms
22.832 ms
22.843 ms
22.839 ms
22.893 ms
22.886 ms
22.837 ms
22.863 ms
22.806 ms
22.809 ms
22.913 ms
22.840 ms
22.782 ms
22.839 ms
22.933 ms
21.915 ms
21.932 ms
21.990 ms
21.956 ms
21.905 ms
21.947 ms
22.894 ms
22.851 ms
22.906 ms
22.846 ms
22.825 ms
22.849 ms
22.836 ms
22.847 ms
22.896 ms
22.819 ms
22.976 ms
22.896 ms
22.907 ms
22.881 ms
22.881 ms
22.886 ms
22.820 ms
22.831 ms
22.839 ms
22.902 ms
22.888 ms
22.869 ms
22.840 ms
22.823 ms
22.887 ms
22.854 ms
22.880 ms
22.874 ms
22.873 ms
22.915 ms
22.842 ms
22.869 ms
22.828 ms
22.875 ms
22.874 ms
22.813 ms
22.885 ms
22.819 ms
22.883 ms
22.847 ms
22.869 ms
22.910 ms
22.848 ms
22.907 ms
22.872 ms
22.865 ms
22.844 ms
22.907 ms
22.828 ms
22.851 ms
6.636 ms
6.680 ms
6.681 ms
6.634 ms
6.651 ms
6.650 ms
6.638 ms
6.635 ms
6.652 ms
6.656 ms
6.631 ms
6.654 ms
6.628 ms
6.695 ms
6.646 ms
6.674 ms
6.668 ms
6.680 ms
6.639 ms
7.004 ms
6.973 ms
6.960 ms
6.942 ms
6.950 ms
6.969 ms
7.010 ms
6.973 ms
6.995 ms
6.963 ms
6.973 ms
6.949 ms
7.000 ms
6.958 ms
6.977 ms
6.952 ms
6.957 ms
6.948 ms
6.964 ms
6.986 ms
7.187 ms
6.964 ms
6.955 ms
6.989 ms
6.959 ms
6.964 ms
6.964 ms
6.967 ms
6.948 ms
6.996 ms
6.999 ms
6.977 ms
6.969 ms
7.056 ms
6.974 ms
6.983 ms
6.962 ms
6.985 ms
6.984 ms
6.941 ms
6.988 ms
6.967 ms
6.975 ms
6.963 ms
6.964 ms
6.977 ms
6.981 ms
6.958 ms
6.956 ms
6.945 ms
6.976 ms
6.990 ms
6.992 ms
6.963 ms
6.969 ms
6.943 ms
6.954 ms
6.969 ms
6.974 ms
6.996 ms
6.951 ms
6.976 ms
6.941 ms
6.998 ms
6.974 ms
7.041 ms
6.947 ms
6.963 ms
6.945 ms
6.957 ms
7.022 ms
6.980 ms
6.949 ms
6.999 ms
6.974 ms
6.963 ms
6.952 ms
6.956 ms
6.997 ms
6.965 ms
6.943 ms
6.943 ms
7.027 ms
6.978 ms
6.971 ms
6.710 ms
6.699 ms
6.707 ms
6.770 ms
6.696 ms
6.721 ms
6.718 ms
6.718 ms
6.713 ms
6.716 ms
6.705 ms
6.739 ms
6.714 ms
6.791 ms
6.713 ms
6.750 ms
6.733 ms
6.764 ms
6.762 ms
6.707 ms
6.720 ms
6.729 ms
6.744 ms
6.712 ms
6.729 ms
6.763 ms
6.751 ms
6.701 ms
6.756 ms
6.730 ms
6.738 ms
6.765 ms
6.723 ms
6.728 ms
6.720 ms
6.689 ms
6.745 ms
6.721 ms
6.696 ms
6.721 ms
6.717 ms
6.723 ms
6.716 ms
6.722 ms
6.726 ms
6.741 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 2

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.143 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.910 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop1.336 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop23.680 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop23.639 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop24.221 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop23.796 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hop23.687 msReply RTT AS8075 · Microsoft
  9. TTL 9 Probe hop23.808 msReply RTT AS8075 · Microsoft
  10. TTL 10 Probe hop19.899 msReply RTT AS8075 · Microsoft
  11. TTL 11 Probe hop22.922 msReply RTT AS8075 · Microsoft
Before

TCP traceroute / 443 · Recorded address 2

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.179 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hopNo replyNo comparable RTT ASN unavailable
  3. TTL 3 Probe hop2.266 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hopNo replyNo comparable RTT ASN unavailable
  5. TTL 5 Probe hop23.542 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop23.488 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop24.018 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hopNo replyNo comparable RTT ASN unavailable
  9. TTL 9 Probe hop23.849 msReply RTT AS8075 · Microsoft
  10. TTL 10 Probe hop19.935 msReply RTT AS8075 · Microsoft
  11. TTL 11 Probe hop23.067 msReply RTT AS8075 · Microsoft
  12. TTL 12 Probe hopNo replyNo comparable RTT ASN unavailable
  13. TTL 13 Destination22.993 msReply RTT AS8075 · Microsoft
Before

ICMP traceroute · Recorded address 2

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.137 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop1.244 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop15.395 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop34.976 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop23.161 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop23.101 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop23.898 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hop24.699 msReply RTT AS8075 · Microsoft
  9. TTL 9 Probe hop51.877 msReply RTT AS8075 · Microsoft
  10. TTL 10 Probe hop22.848 msReply RTT AS8075 · Microsoft
  11. TTL 11 Probe hop23.050 msReply RTT AS8075 · Microsoft
  12. TTL 12 Probe hop23.143 msReply RTT AS8075 · Microsoft
  13. TTL 13 Probe hop24.022 msReply RTT AS8075 · Microsoft
  14. TTL 14 Probe hop22.486 msReply RTT AS8075 · Microsoft
Before

TCP traceroute / 443 · Recorded address 2

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.201 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hopNo replyNo comparable RTT ASN unavailable
  3. TTL 3 Probe hop1.418 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop23.145 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop23.237 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop23.002 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop24.369 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hop23.543 msReply RTT AS8075 · Microsoft
  9. TTL 9 Probe hop23.770 msReply RTT AS8075 · Microsoft
  10. TTL 10 Probe hop24.182 msReply RTT AS8075 · Microsoft
  11. TTL 11 Probe hop24.708 msReply RTT AS8075 · Microsoft
  12. TTL 12 Probe hop23.411 msReply RTT AS8075 · Microsoft
  13. TTL 13 Probe hop20.501 msReply RTT AS8075 · Microsoft
  14. TTL 14 Probe hop22.460 msReply RTT AS8075 · Microsoft
  15. TTL 15 Probe hopNo replyNo comparable RTT ASN unavailable
  16. TTL 16 Destination22.437 msReply RTT AS8075 · Microsoft
During

ICMP traceroute · Recorded address 1

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.163 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop1.014 msReply RTT AS8075 · Microsoft
During

TCP traceroute / 443 · Recorded address 1

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.163 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.681 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hopNo replyNo comparable RTT ASN unavailable
  4. TTL 4 Probe hop7.551 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop143.858 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop7.423 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop7.592 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 Destination6.754 msReply RTT AS8075 · Microsoft
During

ICMP traceroute · Recorded address 2

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.134 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.878 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop2.263 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop23.692 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop50.812 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop23.469 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop23.265 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hop24.780 msReply RTT AS8075 · Microsoft
  9. TTL 9 Probe hop23.929 msReply RTT AS8075 · Microsoft
  10. TTL 10 Probe hop19.923 msReply RTT AS8075 · Microsoft
  11. TTL 11 Probe hop25.752 msReply RTT AS8075 · Microsoft
During

TCP traceroute / 443 · Recorded address 2

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.154 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.907 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop5.359 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop59.502 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop23.645 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop24.478 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop24.542 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hop24.959 msReply RTT AS8075 · Microsoft
  9. TTL 9 Probe hop23.853 msReply RTT AS8075 · Microsoft
  10. TTL 10 Probe hop19.855 msReply RTT AS8075 · Microsoft
  11. TTL 11 Probe hop23.011 msReply RTT AS8075 · Microsoft
  12. TTL 12 Probe hopNo replyNo comparable RTT ASN unavailable
  13. TTL 13 Destination22.849 msReply RTT AS8075 · Microsoft
During

ICMP traceroute · Recorded address 3

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.120 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop6.144 msReply RTT AS8075 · Microsoft
During

TCP traceroute / 443 · Recorded address 3

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.249 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop1.306 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hopNo replyNo comparable RTT ASN unavailable
  4. TTL 4 Probe hop7.027 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop17.551 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop7.856 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 Destination7.136 msReply RTT AS8075 · Microsoft
After

ICMP traceroute · Recorded address 3

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.135 msReply RTT AS8002 · Stealth
After

TCP traceroute / 443 · Recorded address 3

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.180 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.980 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hopNo replyNo comparable RTT ASN unavailable
  4. TTL 4 Probe hop7.059 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop7.926 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 Destination7.108 msReply RTT AS8075 · Microsoft
After

ICMP traceroute · Recorded address 3

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.141 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop4.581 msReply RTT ASN unavailable
  3. TTL 3 Probe hop1.728 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop7.461 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop7.632 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop8.707 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop6.955 msReply RTT AS8075 · Microsoft
After

TCP traceroute / 443 · Recorded address 3

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.247 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.929 msReply RTT ASN unavailable
  3. TTL 3 Probe hop1.441 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop7.073 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop8.441 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop22.875 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 Destination6.737 msReply RTT AS8075 · Microsoft
After

ICMP traceroute · Recorded address 3

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.160 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop1.004 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop1.875 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop7.431 msReply RTT AS8075 · Microsoft
After

TCP traceroute / 443 · Recorded address 3

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.149 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop1.192 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hopNo replyNo comparable RTT ASN unavailable
  4. TTL 4 Probe hop7.597 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop7.689 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop7.271 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 Destination6.833 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 2

Before: UTC · During: UTC

Same destination address and probe method. A matching TTL does not establish the same forwarding path.
TTLBefore RTTDuring RTTResponding address
10.137 msAS8002 · Stealth0.134 msAS8002 · StealthSame responder
21.244 msAS8075 · Microsoft0.878 msAS8075 · MicrosoftSame responder
315.395 msAS8075 · Microsoft2.263 msAS8075 · MicrosoftSame responder
434.976 msAS8075 · Microsoft23.692 msAS8075 · MicrosoftSame responder
523.161 msAS8075 · Microsoft50.812 msAS8075 · MicrosoftSame responder
623.101 msAS8075 · Microsoft23.469 msAS8075 · MicrosoftDifferent responders
723.898 msAS8075 · Microsoft23.265 msAS8075 · MicrosoftDifferent responders
824.699 msAS8075 · Microsoft24.780 msAS8075 · MicrosoftDifferent responders
951.877 msAS8075 · Microsoft23.929 msAS8075 · MicrosoftDifferent responders
1022.848 msAS8075 · Microsoft19.923 msAS8075 · MicrosoftDifferent responders
1123.050 msAS8075 · Microsoft25.752 msAS8075 · MicrosoftDifferent responders
1223.143 msAS8075 · MicrosoftNot recordedNot established
1324.022 msAS8075 · MicrosoftNot recordedNot established
1422.486 msAS8075 · MicrosoftNot recordedNot established
TCP traceroute / 443 · Recorded address 2

Before: UTC · During: UTC

Same destination address and probe method. A matching TTL does not establish the same forwarding path.
TTLBefore RTTDuring RTTResponding address
10.201 msAS8002 · Stealth0.154 msAS8002 · StealthSame responder
2No reply0.907 msAS8075 · MicrosoftNot established
31.418 msAS8075 · Microsoft5.359 msAS8075 · MicrosoftSame responder
423.145 msAS8075 · Microsoft59.502 msAS8075 · MicrosoftSame responder
523.237 msAS8075 · Microsoft23.645 msAS8075 · MicrosoftSame responder
623.002 msAS8075 · Microsoft24.478 msAS8075 · MicrosoftDifferent responders
724.369 msAS8075 · Microsoft24.542 msAS8075 · MicrosoftDifferent responders
823.543 msAS8075 · Microsoft24.959 msAS8075 · MicrosoftDifferent responders
923.770 msAS8075 · Microsoft23.853 msAS8075 · MicrosoftDifferent responders
1024.182 msAS8075 · Microsoft19.855 msAS8075 · MicrosoftDifferent responders
1124.708 msAS8075 · Microsoft23.011 msAS8075 · MicrosoftDifferent responders
1223.411 msAS8075 · MicrosoftNo replyNot established
1320.501 msAS8075 · Microsoft22.849 msAS8075 · MicrosoftDifferent responders
1422.460 msAS8075 · MicrosoftNot recordedNot established
15No replyNot recordedNot established
1622.437 msAS8075 · MicrosoftNot recordedNot established

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 RTT6.747 msUsual round trip before the event
Last recorded event RTT6.949 msLast successful event recording
Event p95 RTT22.910 ms95th percentile of successful recordings
Change from baseline+0.202 msLast event RTT compared with the baseline
Successful / expected recordings140 / 140Recorded 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