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Root cause analysis / Investigation

copilot.com

Reference RCA-AA2CAF439193DA71

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

05 Nov 2026 01:35 – 05 Nov 2026 04:44 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
22.837 ms
22.846 ms
22.870 ms
22.849 ms
22.813 ms
22.789 ms
22.793 ms
22.819 ms
22.813 ms
22.807 ms
22.843 ms
22.836 ms
22.827 ms
22.839 ms
22.900 ms
22.919 ms
22.898 ms
22.888 ms
6.768 ms
6.751 ms
6.744 ms
6.766 ms
6.720 ms
6.768 ms
6.802 ms
6.757 ms
6.728 ms
6.739 ms
6.739 ms
6.746 ms
6.794 ms
6.726 ms
6.757 ms
6.711 ms
6.736 ms
6.741 ms
6.726 ms
6.787 ms
6.736 ms
6.769 ms
6.784 ms
6.767 ms
6.725 ms
6.784 ms
6.749 ms
6.790 ms
6.727 ms
6.723 ms
6.755 ms
6.739 ms
6.743 ms
6.852 ms
7.008 ms
6.759 ms
6.775 ms
6.758 ms
6.726 ms
6.720 ms
6.709 ms
6.735 ms
6.727 ms
6.742 ms
6.748 ms
6.746 ms
6.725 ms
6.747 ms
6.750 ms
6.769 ms
6.730 ms
6.750 ms
6.726 ms
6.740 ms
6.758 ms
6.721 ms
6.728 ms
6.752 ms
6.738 ms
6.748 ms
6.748 ms
6.744 ms
6.778 ms
6.723 ms
6.756 ms
6.764 ms
6.737 ms
6.766 ms
6.740 ms
6.718 ms
6.752 ms
6.739 ms
6.744 ms
6.776 ms
6.746 ms
6.768 ms
6.760 ms
6.750 ms
6.766 ms
6.752 ms
6.753 ms
6.725 ms
6.732 ms
6.757 ms
6.734 ms
6.749 ms
6.726 ms
6.719 ms
6.734 ms
6.793 ms
6.742 ms
6.745 ms
6.724 ms
6.748 ms
6.815 ms
6.833 ms
6.742 ms
6.741 ms
6.740 ms
6.774 ms
6.711 ms
6.726 ms
6.739 ms
6.736 ms
6.760 ms
6.764 ms
6.739 ms
6.729 ms
22.856 ms
22.937 ms
22.865 ms
21.943 ms
21.923 ms
21.949 ms
21.939 ms
21.893 ms
22.895 ms
22.824 ms
22.855 ms
22.858 ms
22.842 ms
22.855 ms
22.886 ms
22.894 ms
22.843 ms
22.831 ms
22.835 ms
22.839 ms
22.869 ms
22.828 ms
22.862 ms
22.825 ms
22.882 ms
22.879 ms
22.912 ms
22.838 ms
22.893 ms
22.871 ms
22.806 ms
22.896 ms
22.864 ms
23.129 ms
22.835 ms
22.902 ms
22.883 ms
22.842 ms
6.387 ms
6.441 ms
6.414 ms
6.387 ms
6.392 ms
6.392 ms
6.390 ms
6.480 ms
6.389 ms
6.384 ms
22.830 ms
22.907 ms
22.949 ms
22.870 ms
22.897 ms
22.890 ms
22.815 ms
22.830 ms
22.847 ms
22.816 ms
22.905 ms
22.879 ms
22.887 ms
23.165 ms
22.880 ms
22.867 ms
22.928 ms
22.844 ms
22.840 ms
22.870 ms
22.880 ms
22.918 ms
22.856 ms
22.830 ms
22.820 ms
22.809 ms
22.884 ms
22.826 ms
22.856 ms
22.862 ms
22.819 ms
22.829 ms
22.830 ms
22.875 ms
22.811 ms
22.867 ms
22.893 ms
22.879 ms
22.880 ms
22.868 ms
22.824 ms
6.294 ms
6.304 ms
6.296 ms
6.282 ms
6.313 ms
6.318 ms
6.276 ms
6.284 ms
6.297 ms
6.309 ms
6.299 ms
6.295 ms
6.278 ms
6.319 ms
6.378 ms
6.290 ms
6.374 ms
6.288 ms
6.287 ms
6.398 ms
6.396 ms
6.429 ms
6.412 ms
6.425 ms
6.393 ms
6.297 ms
6.316 ms
6.289 ms
6.344 ms
6.267 ms
6.293 ms
6.292 ms
6.453 ms
6.422 ms
22.803 ms
22.851 ms
22.857 ms
22.865 ms
22.906 ms
22.911 ms
22.837 ms
23.091 ms
22.843 ms
22.918 ms
22.871 ms
22.789 ms
22.850 ms
22.854 ms
22.846 ms
22.832 ms
22.887 ms
22.814 ms
22.786 ms
22.826 ms
22.849 ms
22.844 ms
22.846 ms
22.866 ms
22.833 ms
22.825 ms
22.850 ms
22.891 ms
22.891 ms
22.873 ms
22.846 ms
22.823 ms
23.017 ms
22.869 ms
22.893 ms
22.886 ms
22.867 ms
22.841 ms
22.911 ms
22.809 ms
22.845 ms
22.846 ms
22.898 ms
22.825 ms
22.893 ms
22.792 ms
22.849 ms
22.858 ms
22.894 ms
22.949 ms
22.832 ms
22.851 ms
22.808 ms
22.841 ms
22.864 ms
22.905 ms
22.886 ms
22.844 ms
22.858 ms
22.858 ms
22.891 ms
22.883 ms
22.799 ms
22.864 ms
22.908 ms
22.876 ms
22.855 ms
22.808 ms
22.871 ms
22.890 ms
22.823 ms
22.853 ms
22.798 ms
22.806 ms
23.014 ms
21.138 ms
21.147 ms
21.191 ms
21.082 ms
21.107 ms
21.120 ms
21.114 ms
21.095 ms
21.138 ms
21.368 ms
21.093 ms
21.138 ms
21.095 ms
22.898 ms
22.840 ms
22.904 ms
22.880 ms
22.850 ms
22.875 ms
23.016 ms
22.859 ms
22.826 ms
22.873 ms
22.890 ms
22.835 ms
22.799 ms
22.912 ms
22.844 ms
22.888 ms
22.806 ms
22.916 ms
22.845 ms
22.842 ms
22.811 ms
22.824 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 3

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.128 msReply RTT AS8002 · Stealth
Before

TCP traceroute / 443 · Recorded address 3

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.167 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 hop23.739 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop95.871 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop23.384 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop24.631 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hopNo replyNo comparable RTT ASN unavailable
  9. TTL 9 Probe hop23.753 msReply RTT AS8075 · Microsoft
  10. TTL 10 Probe hop19.955 msReply RTT AS8075 · Microsoft
  11. TTL 11 Probe hop22.903 msReply RTT AS8075 · Microsoft
  12. TTL 12 Probe hopNo replyNo comparable RTT ASN unavailable
  13. TTL 13 Destination23.064 msReply RTT AS8075 · Microsoft
Before

ICMP traceroute · Recorded address 1

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.116 msReply RTT AS8002 · Stealth
Before

TCP traceroute / 443 · Recorded address 1

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.172 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 hop7.230 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop7.523 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop8.098 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop6.549 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 Destination6.584 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
During

TCP traceroute / 443 · Recorded address 1

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.194 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 hop6.683 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop7.487 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop8.154 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 Destination6.937 msReply RTT AS8075 · Microsoft
During

ICMP traceroute · Recorded address 3

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.121 msReply RTT AS8002 · Stealth
During

TCP traceroute / 443 · Recorded address 3

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.271 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop1.259 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop2.199 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop24.101 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop23.341 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop24.522 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop24.229 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hopNo replyNo comparable RTT ASN unavailable
  9. TTL 9 Probe hop23.728 msReply RTT AS8075 · Microsoft
  10. TTL 10 Probe hop19.821 msReply RTT AS8075 · Microsoft
  11. TTL 11 Probe hop23.063 msReply RTT AS8075 · Microsoft
  12. TTL 12 Probe hopNo replyNo comparable RTT ASN unavailable
  13. TTL 13 Destination22.897 msReply RTT AS8075 · Microsoft
During

ICMP traceroute · Recorded address 2

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.136 msReply RTT AS8002 · Stealth
During

TCP traceroute / 443 · Recorded address 2

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.158 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.847 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hop0.798 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop6.826 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop7.992 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 Destination6.741 msReply RTT AS8075 · Microsoft
After

ICMP traceroute · Recorded address 2

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.144 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop59.962 msReply RTT AS8075 · Microsoft
After

TCP traceroute / 443 · Recorded address 2

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.172 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop1.446 msReply RTT AS8075 · Microsoft
  3. TTL 3 Probe hopNo replyNo comparable RTT ASN unavailable
  4. TTL 4 Probe hop96.297 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop8.604 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop8.454 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop7.846 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 Destination6.746 msReply RTT AS8075 · Microsoft
After

ICMP traceroute · Recorded address 3

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.120 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop1.341 msReply RTT ASN unavailable
  3. TTL 3 Probe hop8.441 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop23.622 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop23.453 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop24.287 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop23.798 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hop23.409 msReply RTT AS8075 · Microsoft
  9. TTL 9 Probe hop23.698 msReply RTT AS8075 · Microsoft
  10. TTL 10 Probe hop19.942 msReply RTT AS8075 · Microsoft
  11. TTL 11 Probe hop22.942 msReply RTT AS8075 · Microsoft
After

TCP traceroute / 443 · Recorded address 3

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.154 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop45.186 msReply RTT ASN unavailable
  3. TTL 3 Probe hopNo replyNo comparable RTT ASN unavailable
  4. TTL 4 Probe hop23.517 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop161.866 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop23.391 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop24.563 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hop24.970 msReply RTT AS8075 · Microsoft
  9. TTL 9 Probe hop23.724 msReply RTT AS8075 · Microsoft
  10. TTL 10 Probe hop19.913 msReply RTT AS8075 · Microsoft
  11. TTL 11 Probe hop29.084 msReply RTT AS8075 · Microsoft
  12. TTL 12 Probe hopNo replyNo comparable RTT ASN unavailable
  13. TTL 13 Destination29.016 msReply RTT AS8075 · Microsoft
After

ICMP traceroute · Recorded address 3

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.129 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop15.059 msReply RTT ASN unavailable
  3. TTL 3 Probe hop1.994 msReply RTT AS8075 · Microsoft
  4. TTL 4 Probe hop196.800 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop23.558 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop24.517 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop23.717 msReply RTT AS8075 · Microsoft
After

TCP traceroute / 443 · Recorded address 3

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.165 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 hop263.231 msReply RTT AS8075 · Microsoft
  5. TTL 5 Probe hop23.447 msReply RTT AS8075 · Microsoft
  6. TTL 6 Probe hop24.697 msReply RTT AS8075 · Microsoft
  7. TTL 7 Probe hop24.075 msReply RTT AS8075 · Microsoft
  8. TTL 8 Probe hop24.740 msReply RTT AS8075 · Microsoft
  9. TTL 9 Probe hop23.683 msReply RTT AS8075 · Microsoft
  10. TTL 10 Probe hop19.857 msReply RTT AS8075 · Microsoft
  11. TTL 11 Probe hop22.937 msReply RTT AS8075 · Microsoft
  12. TTL 12 Probe hopNo replyNo comparable RTT ASN unavailable
  13. TTL 13 Destination23.082 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
10.116 msAS8002 · Stealth0.151 msAS8002 · StealthSame responder
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
10.128 msAS8002 · Stealth0.121 msAS8002 · StealthSame responder
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
10.172 msAS8002 · Stealth0.194 msAS8002 · StealthSame responder
2No replyNo replyNot established
3No replyNo replyNot established
47.230 msAS8075 · Microsoft6.683 msAS8075 · MicrosoftSame responder
57.523 msAS8075 · Microsoft7.487 msAS8075 · MicrosoftSame responder
68.098 msAS8075 · Microsoft8.154 msAS8075 · MicrosoftDifferent responders
76.549 msAS8075 · MicrosoftNo replyNot established
8No replyNo replyNot established
9No replyNo replyNot established
10No replyNo replyNot established
11No reply6.937 msAS8075 · MicrosoftNot established
126.584 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
10.167 msAS8002 · Stealth0.271 msAS8002 · StealthSame responder
2No reply1.259 msAS8075 · MicrosoftNot established
3No reply2.199 msAS8075 · MicrosoftNot established
423.739 msAS8075 · Microsoft24.101 msAS8075 · MicrosoftDifferent responders
595.871 msAS8075 · Microsoft23.341 msAS8075 · MicrosoftDifferent responders
623.384 msAS8075 · Microsoft24.522 msAS8075 · MicrosoftDifferent responders
724.631 msAS8075 · Microsoft24.229 msAS8075 · MicrosoftDifferent responders
8No replyNo replyNot established
923.753 msAS8075 · Microsoft23.728 msAS8075 · MicrosoftDifferent responders
1019.955 msAS8075 · Microsoft19.821 msAS8075 · MicrosoftDifferent responders
1122.903 msAS8075 · Microsoft23.063 msAS8075 · MicrosoftDifferent responders
12No replyNo replyNot established
1323.064 msAS8075 · Microsoft22.897 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 RTT6.755 msUsual round trip before the event
Last recorded event RTT6.393 msLast successful event recording
Event p95 RTT22.919 ms95th percentile of successful recordings
Change from baseline-0.362 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