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Root cause analysis / Investigation

copilot.com

Reference RCA-0193914E94F62D84

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

04 Nov 2026 07:55 – 04 Nov 2026 10:54 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
22.878 ms
22.790 ms
22.893 ms
22.884 ms
22.855 ms
22.805 ms
22.831 ms
22.798 ms
22.823 ms
22.897 ms
22.822 ms
22.849 ms
22.864 ms
22.873 ms
22.873 ms
22.820 ms
22.832 ms
22.935 ms
23.039 ms
22.791 ms
22.821 ms
22.923 ms
22.846 ms
22.869 ms
22.813 ms
22.857 ms
22.887 ms
22.850 ms
22.914 ms
22.894 ms
22.848 ms
22.840 ms
22.867 ms
22.915 ms
22.831 ms
22.844 ms
22.916 ms
22.841 ms
22.818 ms
22.836 ms
22.863 ms
22.829 ms
22.833 ms
22.978 ms
22.850 ms
22.872 ms
6.257 ms
6.286 ms
6.345 ms
6.289 ms
6.294 ms
6.252 ms
6.317 ms
6.264 ms
6.294 ms
6.252 ms
6.272 ms
6.351 ms
6.263 ms
6.305 ms
6.274 ms
6.260 ms
6.290 ms
6.306 ms
6.313 ms
6.267 ms
6.271 ms
6.282 ms
6.301 ms
6.248 ms
6.301 ms
6.246 ms
6.265 ms
6.295 ms
6.261 ms
6.251 ms
6.275 ms
6.275 ms
6.266 ms
6.292 ms
6.268 ms
6.281 ms
6.277 ms
6.258 ms
6.318 ms
6.268 ms
6.295 ms
6.263 ms
6.252 ms
6.260 ms
6.340 ms
6.300 ms
6.263 ms
6.333 ms
6.265 ms
6.273 ms
6.298 ms
6.353 ms
6.259 ms
6.245 ms
6.256 ms
6.288 ms
6.263 ms
6.248 ms
6.303 ms
6.270 ms
6.250 ms
6.261 ms
6.347 ms
6.303 ms
6.294 ms
6.277 ms
6.270 ms
6.253 ms
6.265 ms
6.253 ms
6.276 ms
6.276 ms
6.282 ms
6.288 ms
6.279 ms
6.250 ms
6.261 ms
6.254 ms
6.260 ms
6.254 ms
6.247 ms
6.292 ms
22.462 ms
22.406 ms
22.408 ms
22.541 ms
22.843 ms
22.845 ms
22.897 ms
22.822 ms
22.903 ms
22.888 ms
22.854 ms
22.850 ms
22.876 ms
22.863 ms
22.828 ms
23.049 ms
22.875 ms
22.861 ms
22.824 ms
23.116 ms
22.852 ms
22.824 ms
22.807 ms
22.885 ms
22.885 ms
22.823 ms
23.167 ms
22.835 ms
22.878 ms
22.804 ms
22.827 ms
22.848 ms
22.901 ms
22.824 ms
22.845 ms
22.826 ms
22.907 ms
22.831 ms
22.926 ms
22.922 ms
22.917 ms
22.854 ms
22.869 ms
22.865 ms
22.853 ms
22.831 ms
22.928 ms
22.831 ms
22.870 ms
22.851 ms
22.815 ms
22.845 ms
22.790 ms
22.859 ms
22.885 ms
22.864 ms
22.847 ms
22.864 ms
22.865 ms
22.818 ms
22.803 ms
22.889 ms
22.876 ms
22.899 ms
22.878 ms
22.940 ms
22.889 ms
22.840 ms
22.834 ms
22.842 ms
22.854 ms
22.900 ms
22.882 ms
6.711 ms
6.735 ms
6.748 ms
6.729 ms
6.725 ms
6.727 ms
6.852 ms
6.724 ms
6.724 ms
6.757 ms
6.727 ms
6.817 ms
6.719 ms
6.744 ms
6.792 ms
6.654 ms
6.678 ms
6.661 ms
6.679 ms
6.649 ms
6.665 ms
6.644 ms
6.682 ms
6.665 ms
6.679 ms
6.680 ms
6.709 ms
6.672 ms
6.718 ms
6.653 ms
6.662 ms
6.741 ms
6.672 ms
6.743 ms
6.661 ms
6.669 ms
6.661 ms
6.657 ms
6.711 ms
6.650 ms
6.659 ms
6.662 ms
6.688 ms
6.705 ms
6.698 ms
6.657 ms
6.655 ms
6.675 ms
6.642 ms
6.682 ms
6.695 ms
6.682 ms
6.672 ms
6.686 ms
6.649 ms
6.657 ms
6.650 ms
6.669 ms
6.649 ms
6.836 ms
6.664 ms
6.670 ms
6.661 ms
6.659 ms
6.671 ms
6.676 ms
6.674 ms
6.662 ms
6.670 ms
6.663 ms
6.663 ms
6.673 ms
6.666 ms
6.651 ms
6.670 ms
6.655 ms
6.696 ms
6.693 ms
6.653 ms
6.665 ms
6.799 ms
6.721 ms
6.711 ms
6.674 ms
6.701 ms
6.723 ms
6.663 ms
6.684 ms
6.686 ms
6.656 ms
6.696 ms
6.687 ms
6.715 ms
6.664 ms
6.664 ms
6.701 ms
6.674 ms
6.668 ms
6.658 ms
6.697 ms
6.672 ms
6.690 ms
6.660 ms
6.698 ms
6.668 ms
6.647 ms
6.648 ms
6.654 ms
6.677 ms
6.708 ms
6.701 ms
6.711 ms
6.680 ms
6.719 ms
6.721 ms
6.695 ms
6.663 ms
6.405 ms
6.381 ms
6.405 ms
6.410 ms
6.446 ms
6.395 ms
6.406 ms
6.431 ms
6.415 ms
6.391 ms
6.422 ms
6.390 ms
6.418 ms
6.435 ms
6.427 ms
6.390 ms
6.415 ms
6.900 ms
6.423 ms
6.401 ms
6.372 ms
6.426 ms
6.427 ms
6.396 ms
6.377 ms
6.464 ms
6.401 ms
6.403 ms
6.393 ms
6.391 ms
6.442 ms
6.387 ms
6.389 ms
6.404 ms
6.420 ms
6.443 ms
6.403 ms
6.413 ms
6.398 ms
6.445 ms
6.438 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 4

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.125 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.917 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop1.327 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop23.839 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop23.630 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop24.749 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop23.809 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hop23.103 msReply RTT AS8075 · Microsoft
  9. TTL 9 Probe hop23.806 msReply RTT AS8075 · Microsoft
  10. TTL 10 Probe hop28.096 msReply RTT AS8075 · Microsoft
  11. TTL 11 Probe hop22.789 msReply RTT AS8075 · Microsoft
Before

TCP traceroute / 443 · Recorded address 4

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.231 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.864 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop1.233 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop23.798 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop23.374 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop25.064 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop23.811 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hop24.409 msReply RTT AS8075 · Microsoft
  9. TTL 9 Probe hop23.782 msReply RTT AS8075 · Microsoft
  10. TTL 10 Probe hop19.879 msReply RTT AS8075 · Microsoft
  11. TTL 11 Probe hop22.955 msReply RTT AS8075 · Microsoft
  12. TTL 12 Probe hopNo replyNo comparable RTT ASN unavailable
  13. TTL 13 Destination23.156 msReply RTT AS8075 · Microsoft
Before

ICMP traceroute · Recorded address 2

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.170 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.670 msReply RTT AS8075 · Microsoft
Before

TCP traceroute / 443 · Recorded address 2

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.186 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.819 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hopNo replyNo comparable RTT ASN unavailable
  4. TTL 4 Probe hop7.224 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hopNo replyNo comparable RTT ASN unavailable
  6. TTL 6 Probe hop7.454 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop6.115 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 Destination6.507 msReply RTT AS8075 · Microsoft
Before

TCP traceroute / 443 · Recorded address 2

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.144 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop1.266 msReply RTT ASN unavailable
  3. TTL 3 Probe hop1.250 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop6.727 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop7.990 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 Destination6.108 msReply RTT AS8075 · Microsoft
During

ICMP traceroute · Recorded address 2

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.131 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop8.711 msReply RTT ASN unavailable
During

TCP traceroute / 443 · Recorded address 2

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.208 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hopNo replyNo comparable RTT ASN unavailable
  3. TTL 3 Probe hop2.435 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop6.932 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop7.997 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop7.242 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 Destination5.991 msReply RTT AS8075 · Microsoft
During

ICMP traceroute · Recorded address 4

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.124 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop5.742 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop3.498 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop23.785 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop23.883 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop23.856 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop25.504 msReply RTT AS8075 · Microsoft
During

TCP traceroute / 443 · Recorded address 4

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.142 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.820 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop1.305 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop23.749 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop29.634 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop24.423 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop24.989 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hop24.030 msReply RTT AS8075 · Microsoft
  9. TTL 9 Probe hop23.793 msReply RTT AS8075 · Microsoft
  10. TTL 10 Probe hop19.965 msReply RTT AS8075 · Microsoft
  11. TTL 11 Probe hop23.103 msReply RTT AS8075 · Microsoft
  12. TTL 12 Probe hopNo replyNo comparable RTT ASN unavailable
  13. TTL 13 Destination24.914 msReply RTT AS8075 · Microsoft
During

ICMP traceroute · Recorded address 1

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.124 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop1.824 msReply RTT ASN unavailable
During

TCP traceroute / 443 · Recorded address 1

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.148 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop2.044 msReply RTT ASN unavailable
  3. TTL 3 Probe hop1.204 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop6.742 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hopNo replyNo comparable RTT ASN unavailable
  6. TTL 6 Probe hop6.162 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 Destination6.590 msReply RTT AS8075 · Microsoft
After

ICMP traceroute · Recorded address 1

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.138 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop1.256 msReply RTT ASN unavailable
  3. TTL 3 Probe hop1.546 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop101.400 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop8.579 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop8.213 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop8.677 msReply RTT AS8075 · Microsoft
After

TCP traceroute / 443 · Recorded address 1

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.165 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.964 msReply RTT ASN unavailable
  3. TTL 3 Probe hop1.111 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop7.283 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop8.171 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 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 hop1.385 msReply RTT AS8075 · Microsoft
After

TCP traceroute / 443 · Recorded address 1

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.208 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.886 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop2.190 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop8.182 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hopNo replyNo comparable RTT ASN unavailable
  6. TTL 6 Probe hop7.641 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop7.299 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 Destination6.709 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
  2. TTL 2 Probe hop3.994 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop1.344 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop6.826 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop7.650 msReply RTT AS8075 · Microsoft
After

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 hop0.748 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop1.379 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop7.166 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop8.656 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop6.976 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop6.861 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 Destination6.982 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
10.170 msAS8002 · Stealth0.131 msAS8002 · StealthSame responder
20.670 msAS8075 · Microsoft8.711 msSame responder
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
10.125 msAS8002 · Stealth0.124 msAS8002 · StealthSame responder
20.917 msAS8075 · Microsoft5.742 msAS8075 · MicrosoftSame responder
31.327 msAS8075 · Microsoft3.498 msAS8075 · MicrosoftSame responder
423.839 msAS8075 · Microsoft23.785 msAS8075 · MicrosoftSame responder
523.630 msAS8075 · Microsoft23.883 msAS8075 · MicrosoftSame responder
624.749 msAS8075 · Microsoft23.856 msAS8075 · MicrosoftSame responder
723.809 msAS8075 · Microsoft25.504 msAS8075 · MicrosoftSame responder
823.103 msAS8075 · MicrosoftNot recordedNot established
923.806 msAS8075 · MicrosoftNot recordedNot established
1028.096 msAS8075 · MicrosoftNot recordedNot established
1122.789 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
10.144 msAS8002 · Stealth0.208 msAS8002 · StealthSame responder
21.266 msNo replyNot established
31.250 msAS8075 · Microsoft2.435 msAS8075 · MicrosoftSame responder
46.727 msAS8075 · Microsoft6.932 msAS8075 · MicrosoftDifferent responders
57.990 msAS8075 · Microsoft7.997 msAS8075 · MicrosoftDifferent responders
6No reply7.242 msAS8075 · MicrosoftNot established
7No replyNo replyNot established
8No replyNo replyNot established
9No replyNo replyNot established
10No replyNo replyNot established
116.108 msAS8075 · MicrosoftNo replyNot established
12Not recorded5.991 msAS8075 · MicrosoftNot 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
10.231 msAS8002 · Stealth0.142 msAS8002 · StealthSame responder
20.864 msAS8075 · Microsoft0.820 msAS8075 · MicrosoftSame responder
31.233 msAS8075 · Microsoft1.305 msAS8075 · MicrosoftSame responder
423.798 msAS8075 · Microsoft23.749 msAS8075 · MicrosoftSame responder
523.374 msAS8075 · Microsoft29.634 msAS8075 · MicrosoftSame responder
625.064 msAS8075 · Microsoft24.423 msAS8075 · MicrosoftSame responder
723.811 msAS8075 · Microsoft24.989 msAS8075 · MicrosoftSame responder
824.409 msAS8075 · Microsoft24.030 msAS8075 · MicrosoftSame responder
923.782 msAS8075 · Microsoft23.793 msAS8075 · MicrosoftSame responder
1019.879 msAS8075 · Microsoft19.965 msAS8075 · MicrosoftSame responder
1122.955 msAS8075 · Microsoft23.103 msAS8075 · MicrosoftSame responder
12No replyNo replyNot established
1323.156 msAS8075 · Microsoft24.914 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.
  • 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 RTT6.697 msUsual round trip before the event
Last recorded event RTT6.711 msLast successful event recording
Event p95 RTT22.923 ms95th percentile of successful recordings
Change from baseline+0.014 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