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Root cause analysis / Investigation

copilot.com

Reference RCA-863092DF6C20B240

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

04 Nov 2026 03:10 – 04 Nov 2026 06:39 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
22.388 ms
22.401 ms
22.373 ms
22.377 ms
22.842 ms
22.817 ms
22.811 ms
22.828 ms
22.850 ms
22.850 ms
22.965 ms
22.810 ms
22.863 ms
22.845 ms
22.907 ms
22.815 ms
22.814 ms
22.853 ms
22.866 ms
22.836 ms
22.895 ms
22.830 ms
22.831 ms
22.847 ms
22.834 ms
22.881 ms
22.862 ms
22.863 ms
22.860 ms
22.887 ms
22.838 ms
22.816 ms
22.853 ms
22.891 ms
22.881 ms
22.807 ms
22.824 ms
31.144 ms
31.140 ms
31.115 ms
31.095 ms
31.146 ms
27.598 ms
27.616 ms
27.598 ms
27.599 ms
27.579 ms
27.616 ms
27.632 ms
21.875 ms
21.948 ms
21.927 ms
21.910 ms
21.925 ms
21.887 ms
6.782 ms
6.784 ms
6.736 ms
6.783 ms
6.747 ms
6.743 ms
6.740 ms
6.771 ms
6.757 ms
6.780 ms
6.746 ms
6.796 ms
6.756 ms
6.899 ms
6.869 ms
6.849 ms
6.894 ms
6.874 ms
6.865 ms
6.859 ms
6.893 ms
6.869 ms
6.871 ms
6.926 ms
6.869 ms
6.867 ms
6.858 ms
6.853 ms
6.847 ms
6.970 ms
6.854 ms
6.874 ms
6.851 ms
6.907 ms
6.879 ms
6.920 ms
6.856 ms
6.855 ms
6.891 ms
6.936 ms
6.913 ms
6.923 ms
6.872 ms
6.869 ms
6.871 ms
6.893 ms
6.890 ms
6.878 ms
6.852 ms
6.850 ms
6.840 ms
6.782 ms
6.730 ms
6.762 ms
6.755 ms
6.815 ms
6.713 ms
6.733 ms
6.725 ms
6.729 ms
6.771 ms
6.726 ms
6.759 ms
6.748 ms
6.724 ms
6.746 ms
6.736 ms
6.746 ms
6.799 ms
6.841 ms
22.821 ms
22.896 ms
22.876 ms
22.802 ms
22.877 ms
22.834 ms
22.872 ms
22.890 ms
22.849 ms
22.872 ms
22.818 ms
22.858 ms
22.840 ms
22.863 ms
22.850 ms
22.864 ms
22.878 ms
22.889 ms
22.864 ms
22.864 ms
22.885 ms
22.820 ms
22.826 ms
22.934 ms
22.849 ms
22.854 ms
22.862 ms
22.905 ms
22.815 ms
31.243 ms
22.815 ms
22.878 ms
22.869 ms
27.617 ms
27.625 ms
27.620 ms
27.562 ms
27.559 ms
27.598 ms
27.554 ms
27.613 ms
27.570 ms
27.604 ms
27.578 ms
27.597 ms
27.569 ms
27.594 ms
27.578 ms
27.582 ms
27.623 ms
27.548 ms
27.602 ms
27.567 ms
27.675 ms
27.595 ms
22.886 ms
22.858 ms
22.843 ms
22.863 ms
22.832 ms
22.870 ms
22.912 ms
22.813 ms
22.896 ms
22.867 ms
22.866 ms
22.811 ms
22.876 ms
22.860 ms
22.946 ms
22.832 ms
22.840 ms
22.801 ms
22.875 ms
22.833 ms
22.807 ms
22.867 ms
22.798 ms
22.809 ms
22.806 ms
22.815 ms
22.427 ms
22.409 ms
22.392 ms
22.423 ms
22.897 ms
22.857 ms
22.808 ms
22.846 ms
22.836 ms
6.758 ms
6.776 ms
6.716 ms
6.738 ms
6.773 ms
6.800 ms
6.736 ms
6.728 ms
6.742 ms
6.846 ms
6.863 ms
6.875 ms
6.874 ms
6.947 ms
6.882 ms
6.881 ms
6.895 ms
6.886 ms
6.866 ms
6.870 ms
6.898 ms
6.904 ms
6.928 ms
6.851 ms
6.858 ms
6.749 ms
6.816 ms
6.750 ms
6.762 ms
6.761 ms
6.742 ms
6.788 ms
6.774 ms
6.738 ms
6.749 ms
6.722 ms
6.744 ms
6.757 ms
6.785 ms
6.738 ms
6.760 ms
6.738 ms
6.753 ms
6.777 ms
6.779 ms
6.781 ms
6.874 ms
6.746 ms
6.742 ms
6.742 ms
6.750 ms
6.751 ms
6.883 ms
6.892 ms
6.903 ms
6.856 ms
6.838 ms
6.874 ms
6.738 ms
22.909 ms
22.827 ms
22.841 ms
22.791 ms
22.904 ms
22.916 ms
22.812 ms
22.785 ms
22.851 ms
22.867 ms
22.814 ms
22.849 ms
22.845 ms
22.447 ms
22.359 ms
22.341 ms
22.417 ms
22.446 ms
22.449 ms
22.833 ms
22.840 ms
22.826 ms
22.892 ms
22.871 ms
22.831 ms
22.829 ms
22.880 ms
22.847 ms
22.849 ms
22.839 ms
22.846 ms
22.868 ms
22.891 ms
22.894 ms
22.877 ms
22.867 ms
22.785 ms
22.843 ms
22.838 ms
22.895 ms
22.827 ms
22.905 ms
22.837 ms
22.886 ms
22.896 ms
22.802 ms
22.805 ms
22.797 ms
22.899 ms
22.877 ms
22.822 ms
6.384 ms
6.399 ms
6.391 ms
6.413 ms
6.379 ms
6.385 ms
6.426 ms
6.723 ms
6.744 ms
22.863 ms
6.751 ms
22.846 ms
6.748 ms
22.826 ms
6.378 ms
6.667 ms
6.845 ms
6.650 ms
6.739 ms
6.647 ms
22.844 ms
22.849 ms
22.871 ms
23.007 ms
22.882 ms
22.814 ms
22.834 ms
22.833 ms
22.872 ms
22.840 ms
22.442 ms
22.484 ms
22.392 ms
22.430 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 hop0.131 msReply RTT AS8002 · Stealth
Before

TCP traceroute / 443 · Recorded address 2

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.141 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop1.397 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop1.439 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop23.286 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop22.937 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop23.117 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop24.355 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hop23.984 msReply RTT AS8075 · Microsoft
  9. TTL 9 Probe hop22.785 msReply RTT AS8075 · Microsoft
  10. TTL 10 Probe hop23.905 msReply RTT AS8075 · Microsoft
  11. TTL 11 Probe hop22.792 msReply RTT AS8075 · Microsoft
  12. TTL 12 Probe hop23.190 msReply RTT AS8075 · Microsoft
  13. TTL 13 Probe hop19.620 msReply RTT AS8075 · Microsoft
  14. TTL 14 Probe hop22.436 msReply RTT AS8075 · Microsoft
  15. TTL 15 Probe hopNo replyNo comparable RTT ASN unavailable
  16. TTL 16 Destination22.473 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
  2. TTL 2 Probe hop52.003 msReply RTT AS8075 · Microsoft
Before

TCP traceroute / 443 · Recorded address 1

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.249 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hopNo replyNo comparable RTT ASN unavailable
  3. TTL 3 Probe hop0.808 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop6.913 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hopNo replyNo comparable RTT ASN unavailable
  6. TTL 6 Probe hop5.966 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 Destination6.786 msReply RTT AS8075 · Microsoft
During

ICMP traceroute · Recorded address 1

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.129 msReply RTT AS8002 · Stealth
During

TCP traceroute / 443 · Recorded address 1

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.145 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hopNo replyNo comparable RTT ASN unavailable
  3. TTL 3 Probe hop2.001 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop7.048 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop6.777 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop6.694 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop6.211 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 Destination6.769 msReply RTT AS8075 · Microsoft
During

ICMP traceroute · Recorded address 2

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.150 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop7.731 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop1.450 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop23.442 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop23.560 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop25.215 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop25.072 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hop24.375 msReply RTT AS8075 · Microsoft
  9. TTL 9 Probe hop23.841 msReply RTT AS8075 · Microsoft
  10. TTL 10 Probe hop20.077 msReply RTT AS8075 · Microsoft
  11. TTL 11 Probe hop22.871 msReply RTT AS8075 · Microsoft
During

TCP traceroute / 443 · Recorded address 2

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.167 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.792 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop1.929 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop23.579 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop23.250 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop23.778 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop24.958 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hop23.588 msReply RTT AS8075 · Microsoft
  9. TTL 9 Probe hop23.575 msReply RTT AS8075 · Microsoft
  10. TTL 10 Probe hop19.883 msReply RTT AS8075 · Microsoft
  11. TTL 11 Probe hop23.156 msReply RTT AS8075 · Microsoft
  12. TTL 12 Probe hopNo replyNo comparable RTT ASN unavailable
  13. TTL 13 Destination22.966 msReply RTT AS8075 · Microsoft
During

ICMP traceroute · Recorded address 1

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.151 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.827 msReply RTT AS8075 · Microsoft
During

TCP traceroute / 443 · Recorded address 1

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.156 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop1.183 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hopNo replyNo comparable RTT ASN unavailable
  4. TTL 4 Probe hop6.910 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop6.694 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop6.800 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 Destination6.767 msReply RTT AS8075 · Microsoft
After

ICMP traceroute · Recorded address 1

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.122 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.816 msReply RTT AS8075 · Microsoft
After

TCP traceroute / 443 · Recorded address 1

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.237 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.961 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop0.906 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop6.699 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hopNo replyNo comparable RTT ASN unavailable
  6. TTL 6 Probe hop8.268 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 Destination6.836 msReply RTT AS8075 · Microsoft
After

ICMP traceroute · Recorded address 2

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.645 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop106.939 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop1.646 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop23.752 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop23.659 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop25.208 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop23.461 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hop24.355 msReply RTT AS8075 · Microsoft
  9. TTL 9 Probe hop23.761 msReply RTT AS8075 · Microsoft
  10. TTL 10 Probe hop20.114 msReply RTT AS8075 · Microsoft
  11. TTL 11 Probe hop23.054 msReply RTT AS8075 · Microsoft
After

TCP traceroute / 443 · Recorded address 2

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.204 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop53.705 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop3.036 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop23.597 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop23.360 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop24.249 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop24.620 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hopNo replyNo comparable RTT ASN unavailable
  9. TTL 9 Probe hop23.678 msReply RTT AS8075 · Microsoft
  10. TTL 10 Probe hop19.976 msReply RTT AS8075 · Microsoft
  11. TTL 11 Probe hop23.003 msReply RTT AS8075 · Microsoft
  12. TTL 12 Probe hopNo replyNo comparable RTT ASN unavailable
  13. TTL 13 Destination23.433 msReply RTT AS8075 · Microsoft
After

ICMP traceroute · Recorded address 2

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.122 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop15.507 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop1.563 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop57.906 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop22.942 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop23.179 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop24.375 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hop24.359 msReply RTT AS8075 · Microsoft
  9. TTL 9 Probe hop24.371 msReply RTT AS8075 · Microsoft
  10. TTL 10 Probe hop22.765 msReply RTT AS8075 · Microsoft
  11. TTL 11 Probe hop24.345 msReply RTT AS8075 · Microsoft
  12. TTL 12 Probe hop23.069 msReply RTT AS8075 · Microsoft
  13. TTL 13 Probe hop19.495 msReply RTT AS8075 · Microsoft
  14. TTL 14 Probe hop22.608 msReply RTT AS8075 · Microsoft
After

TCP traceroute / 443 · Recorded address 2

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.148 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop3.457 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop11.846 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop22.641 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop22.703 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop23.233 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop22.580 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hop22.296 msReply RTT AS8075 · Microsoft
  9. TTL 9 Probe hop22.882 msReply RTT AS8075 · Microsoft
  10. TTL 10 Probe hop19.186 msReply RTT AS8075 · Microsoft
  11. TTL 11 Probe hop22.044 msReply RTT AS8075 · Microsoft
  12. TTL 12 Probe hopNo replyNo comparable RTT ASN unavailable
  13. TTL 13 Destination22.098 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 1

Before: UTC · During: UTC

Same destination address and probe method. A matching TTL does not establish the same forwarding path.
TTLBefore RTTDuring RTTResponding address
10.138 msAS8002 · Stealth0.129 msAS8002 · StealthSame responder
252.003 msAS8075 · MicrosoftNot recordedNot established
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
10.131 msAS8002 · Stealth0.150 msAS8002 · StealthSame responder
2Not recorded7.731 msAS8075 · MicrosoftNot established
3Not recorded1.450 msAS8075 · MicrosoftNot established
4Not recorded23.442 msAS8075 · MicrosoftNot established
5Not recorded23.560 msAS8075 · MicrosoftNot established
6Not recorded25.215 msAS8075 · MicrosoftNot established
7Not recorded25.072 msAS8075 · MicrosoftNot established
8Not recorded24.375 msAS8075 · MicrosoftNot established
9Not recorded23.841 msAS8075 · MicrosoftNot established
10Not recorded20.077 msAS8075 · MicrosoftNot established
11Not recorded22.871 msAS8075 · MicrosoftNot established
TCP traceroute / 443 · Recorded address 1

Before: UTC · During: UTC

Same destination address and probe method. A matching TTL does not establish the same forwarding path.
TTLBefore RTTDuring RTTResponding address
10.249 msAS8002 · Stealth0.145 msAS8002 · StealthSame responder
2No replyNo replyNot established
30.808 msAS8075 · Microsoft2.001 msAS8075 · MicrosoftSame responder
46.913 msAS8075 · Microsoft7.048 msAS8075 · MicrosoftSame responder
5No reply6.777 msAS8075 · MicrosoftNot established
65.966 msAS8075 · Microsoft6.694 msAS8075 · MicrosoftDifferent responders
7No reply6.211 msAS8075 · MicrosoftNot established
8No replyNo replyNot established
9No replyNo replyNot established
10No replyNo replyNot established
116.786 msAS8075 · MicrosoftNo replyNot established
12Not recorded6.769 msAS8075 · MicrosoftNot 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
10.141 msAS8002 · Stealth0.167 msAS8002 · StealthSame responder
21.397 msAS8075 · Microsoft0.792 msAS8075 · MicrosoftSame responder
31.439 msAS8075 · Microsoft1.929 msAS8075 · MicrosoftSame responder
423.286 msAS8075 · Microsoft23.579 msAS8075 · MicrosoftDifferent responders
522.937 msAS8075 · Microsoft23.250 msAS8075 · MicrosoftDifferent responders
623.117 msAS8075 · Microsoft23.778 msAS8075 · MicrosoftDifferent responders
724.355 msAS8075 · Microsoft24.958 msAS8075 · MicrosoftDifferent responders
823.984 msAS8075 · Microsoft23.588 msAS8075 · MicrosoftDifferent responders
922.785 msAS8075 · Microsoft23.575 msAS8075 · MicrosoftDifferent responders
1023.905 msAS8075 · Microsoft19.883 msAS8075 · MicrosoftDifferent responders
1122.792 msAS8075 · Microsoft23.156 msAS8075 · MicrosoftDifferent responders
1223.190 msAS8075 · MicrosoftNo replyNot established
1319.620 msAS8075 · Microsoft22.966 msAS8075 · MicrosoftDifferent responders
1422.436 msAS8075 · MicrosoftNot recordedNot established
15No replyNot recordedNot established
1622.473 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.
  • 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 RTT6.674 msUsual round trip before the event
Last recorded event RTT6.858 msLast successful event recording
Event p95 RTT27.612 ms95th percentile of successful recordings
Change from baseline+0.184 msLast event RTT compared with the baseline
Successful / expected recordings180 / 180Recorded 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