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Root cause analysis / Investigation

chatgpt.com

Reference RCA-974264A5D61A534B

OpenAI 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 12:55 – 06 Nov 2026 16:44 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
1.107 ms
1.122 ms
1.638 ms
1.614 ms
1.224 ms
1.547 ms
1.133 ms
1.659 ms
1.646 ms
1.637 ms
1.121 ms
1.638 ms
1.549 ms
1.582 ms
1.562 ms
1.123 ms
1.567 ms
1.569 ms
1.585 ms
1.135 ms
1.591 ms
1.589 ms
1.186 ms
1.191 ms
1.100 ms
1.656 ms
1.338 ms
1.146 ms
1.556 ms
1.560 ms
1.111 ms
1.579 ms
1.567 ms
1.603 ms
1.365 ms
1.564 ms
1.578 ms
1.178 ms
1.568 ms
1.671 ms
1.122 ms
1.157 ms
1.571 ms
1.152 ms
1.659 ms
1.614 ms
1.705 ms
1.760 ms
1.189 ms
1.559 ms
1.155 ms
1.156 ms
1.188 ms
1.159 ms
1.563 ms
1.571 ms
1.543 ms
1.581 ms
1.621 ms
1.153 ms
1.599 ms
1.665 ms
1.156 ms
1.127 ms
1.119 ms
1.671 ms
1.143 ms
1.440 ms
1.551 ms
1.150 ms
1.687 ms
1.680 ms
1.299 ms
1.562 ms
1.136 ms
1.573 ms
1.144 ms
1.632 ms
1.549 ms
1.147 ms
1.571 ms
1.142 ms
2.348 ms
1.149 ms
1.130 ms
1.132 ms
1.103 ms
1.224 ms
1.135 ms
1.171 ms
1.786 ms
1.660 ms
1.133 ms
1.127 ms
1.575 ms
1.564 ms
1.566 ms
8.710 ms
1.555 ms
1.643 ms
1.111 ms
1.157 ms
1.113 ms
1.213 ms
1.575 ms
1.721 ms
1.132 ms
1.574 ms
1.578 ms
1.146 ms
1.556 ms
1.170 ms
1.570 ms
1.587 ms
1.126 ms
1.555 ms
1.579 ms
1.589 ms
1.153 ms
1.136 ms
1.134 ms
1.576 ms
18.106 ms
1.598 ms
1.576 ms
1.131 ms
1.132 ms
1.569 ms
18.919 ms
1.585 ms
1.624 ms
1.127 ms
1.674 ms
11.225 ms
1.564 ms
1.557 ms
1.141 ms
1.648 ms
1.215 ms
1.568 ms
1.124 ms
1.590 ms
1.131 ms
1.153 ms
1.632 ms
1.630 ms
1.159 ms
1.684 ms
1.130 ms
1.566 ms
1.151 ms
8.730 ms
1.145 ms
1.122 ms
1.582 ms
1.147 ms
1.638 ms
1.130 ms
1.558 ms
1.571 ms
1.598 ms
1.620 ms
1.557 ms
1.575 ms
1.555 ms
1.144 ms
1.582 ms
1.570 ms
1.616 ms
16.231 ms
1.563 ms
1.133 ms
1.567 ms
1.118 ms
1.624 ms
1.661 ms
1.559 ms
1.177 ms
1.239 ms
1.279 ms
6.251 ms
1.199 ms
1.173 ms
1.632 ms
11.919 ms
19.475 ms
1.144 ms
1.615 ms
1.675 ms
1.605 ms
1.130 ms
1.210 ms
1.585 ms
18.029 ms
1.207 ms
1.642 ms
1.126 ms
1.139 ms
1.192 ms
1.570 ms
1.128 ms
1.614 ms
1.135 ms
1.575 ms
1.122 ms
1.582 ms
1.117 ms
1.133 ms
1.159 ms
1.594 ms
1.638 ms
3.216 ms
1.172 ms
1.165 ms
1.631 ms
1.144 ms
1.583 ms
1.118 ms
1.554 ms
1.823 ms
1.173 ms
1.716 ms
1.622 ms
1.608 ms
1.575 ms
1.556 ms
1.588 ms
1.128 ms
1.165 ms
1.157 ms
1.124 ms
1.604 ms
1.633 ms
1.571 ms
1.122 ms
1.126 ms
1.551 ms
1.158 ms
1.642 ms
1.163 ms
1.118 ms
1.168 ms
1.573 ms
1.605 ms
1.165 ms
1.144 ms
1.150 ms
1.140 ms
1.742 ms
1.136 ms
1.142 ms
1.161 ms
1.705 ms
1.575 ms
1.116 ms
1.160 ms
2.169 ms
1.125 ms
1.563 ms
2.962 ms
7.807 ms
1.555 ms
1.803 ms
7.530 ms
1.175 ms
1.168 ms
1.350 ms
1.192 ms
1.633 ms
1.143 ms
1.636 ms
1.666 ms
1.140 ms
1.681 ms
1.652 ms
1.634 ms
1.590 ms
1.583 ms
9.085 ms
14.552 ms
1.690 ms
16.296 ms
1.150 ms
1.694 ms
1.581 ms
1.127 ms
1.145 ms
1.126 ms
1.594 ms
1.166 ms
1.548 ms
1.578 ms
5.806 ms
1.177 ms
16.450 ms
1.623 ms
1.566 ms
1.146 ms
1.151 ms
1.139 ms
1.668 ms
6.081 ms
1.148 ms
1.751 ms
1.605 ms
1.158 ms
15.277 ms
1.566 ms
1.561 ms
1.588 ms
1.195 ms
1.682 ms
1.194 ms
1.198 ms
1.670 ms
1.144 ms
16.907 ms
1.678 ms
1.134 ms
1.666 ms
1.583 ms
1.146 ms
4.935 ms
1.578 ms
1.646 ms
1.140 ms
1.601 ms
1.623 ms
1.609 ms
1.746 ms
17.401 ms
15.783 ms
4.720 ms
12.368 ms
1.569 ms
1.642 ms
1.172 ms
1.630 ms
1.617 ms
11.136 ms
1.136 ms
1.571 ms
1.574 ms
1.581 ms
1.132 ms
1.159 ms
1.140 ms
1.571 ms
16.392 ms
13.100 ms
1.213 ms
1.637 ms
1.709 ms
1.622 ms
1.130 ms
1.131 ms
15.107 ms
Network path / recorded observations

Network path observations.

25 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 1

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.129 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.203 msReply RTT AS8002 · Stealth
Before

TCP traceroute / 443 · Recorded address 1

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.149 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.171 msReply RTT AS8002 · Stealth
  3. TTL 3 Probe hopNo replyNo comparable RTT ASN unavailable
  4. TTL 4 Probe hopNo replyNo comparable RTT ASN unavailable
  5. TTL 5 Probe hop1.552 msReply RTT AS13335 · Cloudflare
  6. TTL 6 Probe hopNo replyNo comparable RTT ASN unavailable
  7. TTL 7 Destination1.674 msReply RTT AS13335 · Cloudflare
Before

ICMP traceroute · Destination 1

Comparison window · median of 14 traces


to UTC

  1. TTL 1 Stealth associated hop0.130 msMedian reply RTT14/14 replies · 100.0%ASN unavailable
  2. TTL 2 Stealth associated hop0.185 msMedian reply RTT14/14 replies · 100.0%ASN unavailable
  3. TTL 3 First responding external hop2.525 msMedian reply RTT13/14 replies · 92.9%AS13335 · Cloudflare
  4. TTL 4 Unidentified or changing hopUnavailableMedian reply RTTReply coverage unavailableASN unavailable
  5. TTL 5 Unidentified or changing hopUnavailableMedian reply RTTReply coverage unavailableASN unavailable
  6. TTL 6 Unidentified or changing hopUnavailableMedian reply RTTReply coverage unavailableASN unavailable
Before

TCP/443 traceroute · Destination 2

Comparison window · median of 15 traces


to UTC

  1. TTL 1 Stealth associated hop0.188 msMedian reply RTT15/15 replies · 100.0%ASN unavailable
  2. TTL 2 Stealth associated hop0.201 msMedian reply RTT15/15 replies · 100.0%ASN unavailable
  3. TTL 3 First responding external hop1.381 msMedian reply RTT10/15 replies · 66.7%AS13335 · Cloudflare
  4. TTL 4 Unidentified or changing hopUnavailableMedian reply RTTReply coverage unavailableASN unavailable
  5. TTL 5 Unidentified or changing hopUnavailableMedian reply RTTReply coverage unavailableASN unavailable
  6. TTL 6 Destination reply1.432 msMedian reply RTT12/15 replies · 80.0%ASN unavailable
  7. TTL 7 Unidentified or changing hopUnavailableMedian reply RTTReply coverage unavailableASN unavailable
Before

ICMP traceroute · Destination 3

Comparison window · median of 16 traces


to UTC

  1. TTL 1 Stealth associated hop0.131 msMedian reply RTT16/16 replies · 100.0%ASN unavailable
  2. TTL 2 Stealth associated hop0.187 msMedian reply RTT16/16 replies · 100.0%ASN unavailable
  3. TTL 3 First responding external hop1.209 msMedian reply RTT12/16 replies · 75.0%AS13335 · Cloudflare
  4. TTL 4 Unidentified or changing hopUnavailableMedian reply RTTReply coverage unavailableASN unavailable
  5. TTL 5 Unidentified or changing hopUnavailableMedian reply RTTReply coverage unavailableASN unavailable
  6. TTL 6 Unidentified or changing hopUnavailableMedian reply RTTReply coverage unavailableASN unavailable
Before

TCP/443 traceroute · Destination 4

Comparison window · median of 15 traces


to UTC

  1. TTL 1 Stealth associated hop0.155 msMedian reply RTT15/15 replies · 100.0%ASN unavailable
  2. TTL 2 Stealth associated hop0.190 msMedian reply RTT15/15 replies · 100.0%ASN unavailable
  3. TTL 3 First responding external hop1.637 msMedian reply RTT14/15 replies · 93.3%AS13335 · Cloudflare
  4. TTL 4 Unidentified or changing hopUnavailableMedian reply RTTReply coverage unavailableASN unavailable
  5. TTL 5 Unidentified or changing hopUnavailableMedian reply RTTReply coverage unavailableASN unavailable
  6. TTL 6 Destination reply1.393 msMedian reply RTT11/15 replies · 73.3%ASN unavailable
  7. TTL 7 Destination reply1.869 msMedian reply RTT4/15 replies · 26.7%ASN unavailable
Before

ICMP traceroute · Recorded address 2

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.154 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.221 msReply RTT AS8002 · Stealth
Before

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 hop0.195 msReply RTT AS8002 · Stealth
  3. TTL 3 Probe hopNo replyNo comparable RTT ASN unavailable
  4. TTL 4 Probe hopNo replyNo comparable RTT ASN unavailable
  5. TTL 5 Probe hop1.767 msReply RTT AS13335 · Cloudflare
  6. TTL 6 Destination1.241 msReply RTT AS13335 · Cloudflare
Before

TCP traceroute / 443 · Recorded address 1

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.174 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.220 msReply RTT AS8002 · Stealth
  3. TTL 3 Probe hop1.661 msReply RTT ASN unavailable
  4. TTL 4 Probe hopNo replyNo comparable RTT ASN unavailable
  5. TTL 5 Probe hop3.265 msReply RTT AS13335 · Cloudflare
  6. TTL 6 Destination1.300 msReply RTT AS13335 · Cloudflare
During

ICMP traceroute · Recorded address 2

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.114 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.181 msReply RTT AS8002 · Stealth
  3. TTL 3 Probe hop18.123 msReply RTT ASN unavailable
During

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 hop0.187 msReply RTT AS8002 · Stealth
  3. TTL 3 Probe hop13.690 msReply RTT ASN unavailable
  4. TTL 4 Probe hopNo replyNo comparable RTT ASN unavailable
  5. TTL 5 Probe hop1.261 msReply RTT AS13335 · Cloudflare
  6. TTL 6 Destination1.357 msReply RTT AS13335 · Cloudflare
During

ICMP traceroute · Recorded address 1

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.168 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.207 msReply RTT AS8002 · Stealth
During

TCP traceroute / 443 · Recorded address 1

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.136 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.208 msReply RTT AS8002 · Stealth
  3. TTL 3 Probe hopNo replyNo comparable RTT ASN unavailable
  4. TTL 4 Probe hopNo replyNo comparable RTT ASN unavailable
  5. TTL 5 Probe hop4.434 msReply RTT AS13335 · Cloudflare
  6. TTL 6 Destination1.155 msReply RTT AS13335 · Cloudflare
During

ICMP traceroute · Destination 1

Comparison window · median of 16 traces


to UTC

  1. TTL 1 Stealth associated hop0.124 msMedian reply RTT16/16 replies · 100.0%ASN unavailable
  2. TTL 2 Stealth associated hop0.184 msMedian reply RTT16/16 replies · 100.0%ASN unavailable
  3. TTL 3 First responding external hop1.525 msMedian reply RTT15/16 replies · 93.8%AS13335 · Cloudflare
  4. TTL 4 Unidentified or changing hopUnavailableMedian reply RTTReply coverage unavailableASN unavailable
  5. TTL 5 Unidentified or changing hopUnavailableMedian reply RTTReply coverage unavailableASN unavailable
  6. TTL 6 Unidentified or changing hopUnavailableMedian reply RTTReply coverage unavailableASN unavailable
During

TCP/443 traceroute · Destination 2

Comparison window · median of 17 traces


to UTC

  1. TTL 1 Stealth associated hop0.151 msMedian reply RTT17/17 replies · 100.0%ASN unavailable
  2. TTL 2 Stealth associated hop0.206 msMedian reply RTT17/17 replies · 100.0%ASN unavailable
  3. TTL 3 First responding external hop1.606 msMedian reply RTT15/17 replies · 88.2%AS13335 · Cloudflare
  4. TTL 4 Unidentified or changing hopUnavailableMedian reply RTTReply coverage unavailableASN unavailable
  5. TTL 5 Unidentified or changing hopUnavailableMedian reply RTTReply coverage unavailableASN unavailable
  6. TTL 6 Destination reply1.394 msMedian reply RTT15/17 replies · 88.2%ASN unavailable
  7. TTL 7 Unidentified or changing hopUnavailableMedian reply RTTReply coverage unavailableASN unavailable
During

ICMP traceroute · Destination 3

Comparison window · median of 14 traces


to UTC

  1. TTL 1 Stealth associated hop0.133 msMedian reply RTT14/14 replies · 100.0%ASN unavailable
  2. TTL 2 Stealth associated hop0.190 msMedian reply RTT14/14 replies · 100.0%ASN unavailable
  3. TTL 3 First responding external hop7.088 msMedian reply RTT10/14 replies · 71.4%AS13335 · Cloudflare
  4. TTL 4 Unidentified or changing hopUnavailableMedian reply RTTReply coverage unavailableASN unavailable
  5. TTL 5 Unidentified or changing hopUnavailableMedian reply RTTReply coverage unavailableASN unavailable
  6. TTL 6 Unidentified or changing hopUnavailableMedian reply RTTReply coverage unavailableASN unavailable
During

TCP/443 traceroute · Destination 4

Comparison window · median of 13 traces


to UTC

  1. TTL 1 Stealth associated hop0.146 msMedian reply RTT13/13 replies · 100.0%ASN unavailable
  2. TTL 2 Stealth associated hop0.191 msMedian reply RTT13/13 replies · 100.0%ASN unavailable
  3. TTL 3 First responding external hop1.244 msMedian reply RTT12/13 replies · 92.3%AS13335 · Cloudflare
  4. TTL 4 Unidentified or changing hopUnavailableMedian reply RTTReply coverage unavailableASN unavailable
  5. TTL 5 Unidentified or changing hopUnavailableMedian reply RTTReply coverage unavailableASN unavailable
  6. TTL 6 Destination reply1.370 msMedian reply RTT10/13 replies · 76.9%ASN unavailable
  7. TTL 7 Destination reply1.814 msMedian reply RTT3/13 replies · 23.1%ASN unavailable
During

ICMP traceroute · Recorded address 1

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.130 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.177 msReply RTT AS8002 · Stealth
  3. TTL 3 Probe hop0.902 msReply RTT AS13335 · Cloudflare
During

TCP traceroute / 443 · Recorded address 1

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.146 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.206 msReply RTT AS8002 · Stealth
  3. TTL 3 Probe hop1.505 msReply RTT AS13335 · Cloudflare
  4. TTL 4 Probe hopNo replyNo comparable RTT ASN unavailable
  5. TTL 5 Probe hop3.610 msReply RTT AS13335 · Cloudflare
  6. TTL 6 Destination1.462 msReply RTT AS13335 · Cloudflare
After

ICMP traceroute · Recorded address 2

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.129 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.184 msReply RTT AS8002 · Stealth
  3. TTL 3 Probe hop42.212 msReply RTT AS13335 · Cloudflare
After

TCP traceroute / 443 · Recorded address 1

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.227 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.189 msReply RTT AS8002 · Stealth
  3. TTL 3 Probe hopNo replyNo comparable RTT ASN unavailable
  4. TTL 4 Probe hopNo replyNo comparable RTT ASN unavailable
  5. TTL 5 Probe hop1.029 msReply RTT AS13335 · Cloudflare
  6. TTL 6 Destination1.381 msReply RTT AS13335 · Cloudflare
After

ICMP traceroute · Recorded address 1

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.120 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.197 msReply RTT AS8002 · Stealth
After

TCP traceroute / 443 · Recorded address 1

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.166 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.183 msReply RTT AS8002 · Stealth
  3. TTL 3 Probe hop25.564 msReply RTT AS13335 · Cloudflare
  4. TTL 4 Probe hopNo replyNo comparable RTT ASN unavailable
  5. TTL 5 Probe hop9.207 msReply RTT AS13335 · Cloudflare
  6. TTL 6 Destination1.442 msReply RTT AS13335 · Cloudflare
After

ICMP traceroute · Recorded address 2

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.119 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.178 msReply RTT AS8002 · Stealth
  3. TTL 3 Probe hop4.720 msReply RTT AS13335 · Cloudflare
After

TCP traceroute / 443 · Recorded address 1

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.147 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.180 msReply RTT AS8002 · Stealth
  3. TTL 3 Probe hop3.874 msReply RTT AS13335 · Cloudflare
  4. TTL 4 Probe hopNo replyNo comparable RTT ASN unavailable
  5. TTL 5 Probe hop2.196 msReply RTT AS13335 · Cloudflare
  6. TTL 6 Probe hopNo replyNo comparable RTT ASN unavailable
  7. TTL 7 Destination1.735 msReply RTT AS13335 · Cloudflare

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
10.129 msAS8002 · Stealth0.168 msAS8002 · StealthSame responder
20.203 msAS8002 · Stealth0.207 msAS8002 · StealthSame responder
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
10.154 msAS8002 · Stealth0.114 msAS8002 · StealthSame responder
20.221 msAS8002 · Stealth0.181 msAS8002 · StealthSame responder
3Not recorded18.123 msNot 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
10.174 msAS8002 · Stealth0.153 msAS8002 · StealthSame responder
20.220 msAS8002 · Stealth0.187 msAS8002 · StealthSame responder
31.661 ms13.690 msSame responder
4No replyNo replyNot established
53.265 msAS13335 · Cloudflare1.261 msAS13335 · CloudflareDifferent responders
61.300 msAS13335 · Cloudflare1.357 msAS13335 · CloudflareSame 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

Stealth replies stable; external replies varied.

Sampled Stealth associated replies stayed within the comparison limits while external replies varied. The external path, destination and return path remain areas to investigate.

What we observed

  • A sustained increase in measured round trip time was observed.
  • Stored traces were compared using matching source and destination addresses.

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 RTT1.360 msUsual round trip before the event
Last recorded event RTT1.163 msLast successful event recording
Event p95 RTT11.294 ms95th percentile of successful recordings
Change from baseline-0.197 msLast event RTT compared with the baseline
Successful / expected recordings219 / 220Recorded 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