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Root cause analysis / Investigation

api.perplexity.ai

Reference RCA-19209B6E5588FDBA

Perplexity API endpoint

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 16:50 – 06 Nov 2026 20:39 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
1.315 ms
1.149 ms
1.146 ms
1.091 ms
1.273 ms
1.093 ms
1.073 ms
1.096 ms
1.307 ms
1.328 ms
1.345 ms
1.299 ms
1.368 ms
1.336 ms
1.072 ms
1.281 ms
2.443 ms
1.399 ms
1.303 ms
1.313 ms
1.333 ms
1.122 ms
14.018 ms
14.147 ms
1.445 ms
11.946 ms
16.538 ms
1.271 ms
1.313 ms
13.045 ms
1.089 ms
1.489 ms
3.408 ms
1.285 ms
1.308 ms
8.978 ms
1.367 ms
1.067 ms
16.696 ms
19.978 ms
16.364 ms
1.325 ms
11.708 ms
1.301 ms
1.333 ms
5.905 ms
1.096 ms
1.315 ms
1.307 ms
1.291 ms
1.147 ms
2.327 ms
1.124 ms
1.071 ms
1.315 ms
17.680 ms
1.372 ms
1.198 ms
1.429 ms
1.295 ms
1.316 ms
1.333 ms
1.115 ms
1.414 ms
1.404 ms
1.299 ms
1.329 ms
1.388 ms
1.353 ms
1.346 ms
1.311 ms
1.318 ms
1.286 ms
1.157 ms
1.065 ms
1.177 ms
1.070 ms
1.306 ms
1.290 ms
1.066 ms
1.419 ms
1.293 ms
1.110 ms
1.281 ms
1.381 ms
1.058 ms
1.369 ms
1.282 ms
1.354 ms
1.124 ms
1.345 ms
1.087 ms
1.336 ms
1.287 ms
17.665 ms
1.301 ms
1.346 ms
16.562 ms
1.397 ms
1.060 ms
1.318 ms
1.316 ms
1.292 ms
1.166 ms
1.346 ms
1.297 ms
19.851 ms
1.782 ms
6.899 ms
1.297 ms
1.094 ms
1.087 ms
1.315 ms
1.166 ms
1.161 ms
1.113 ms
1.394 ms
1.328 ms
1.355 ms
1.123 ms
1.283 ms
1.230 ms
17.028 ms
6.722 ms
9.118 ms
1.282 ms
1.145 ms
1.090 ms
1.519 ms
1.053 ms
1.275 ms
1.104 ms
1.206 ms
3.885 ms
1.337 ms
17.629 ms
18.466 ms
1.350 ms
1.054 ms
1.445 ms
1.241 ms
2.727 ms
17.374 ms
5.196 ms
5.271 ms
1.299 ms
1.435 ms
18.284 ms
13.943 ms
1.304 ms
12.349 ms
4.784 ms
1.121 ms
1.305 ms
1.257 ms
1.324 ms
1.377 ms
1.377 ms
9.148 ms
1.360 ms
1.552 ms
6.566 ms
14.080 ms
18.435 ms
15.973 ms
20.187 ms
1.298 ms
1.346 ms
15.024 ms
4.116 ms
1.972 ms
1.286 ms
1.429 ms
1.070 ms
1.164 ms
19.401 ms
1.351 ms
10.115 ms
1.296 ms
1.285 ms
2.285 ms
9.725 ms
1.290 ms
11.269 ms
1.333 ms
14.136 ms
4.332 ms
1.398 ms
1.289 ms
1.371 ms
1.070 ms
1.127 ms
1.194 ms
19.542 ms
1.399 ms
1.318 ms
1.280 ms
1.325 ms
1.100 ms
1.285 ms
1.128 ms
10.757 ms
1.058 ms
3.000 ms
1.187 ms
1.330 ms
1.338 ms
1.211 ms
1.317 ms
1.309 ms
1.122 ms
1.300 ms
1.331 ms
1.306 ms
17.137 ms
1.062 ms
16.985 ms
2.460 ms
18.813 ms
1.314 ms
1.109 ms
1.072 ms
1.292 ms
1.304 ms
1.312 ms
1.148 ms
1.413 ms
1.331 ms
1.336 ms
1.085 ms
1.359 ms
1.056 ms
1.332 ms
1.306 ms
1.082 ms
1.297 ms
1.090 ms
1.087 ms
1.069 ms
1.329 ms
1.291 ms
1.441 ms
1.521 ms
1.463 ms
1.107 ms
1.170 ms
1.087 ms
1.282 ms
14.970 ms
1.087 ms
1.078 ms
1.067 ms
4.932 ms
19.174 ms
6.644 ms
1.287 ms
1.075 ms
18.590 ms
1.528 ms
1.313 ms
1.288 ms
1.362 ms
1.099 ms
1.324 ms
1.077 ms
1.154 ms
4.897 ms
1.106 ms
1.087 ms
1.370 ms
1.149 ms
1.351 ms
1.200 ms
1.085 ms
1.083 ms
3.993 ms
1.105 ms
1.117 ms
1.283 ms
1.040 ms
1.317 ms
1.349 ms
12.081 ms
1.128 ms
1.054 ms
1.104 ms
9.897 ms
1.339 ms
1.333 ms
1.319 ms
1.337 ms
1.180 ms
1.339 ms
1.109 ms
1.095 ms
1.307 ms
1.132 ms
1.323 ms
7.412 ms
1.300 ms
1.139 ms
1.081 ms
1.097 ms
1.376 ms
1.335 ms
1.113 ms
1.081 ms
1.062 ms
1.075 ms
1.273 ms
1.399 ms
1.457 ms
1.389 ms
1.289 ms
1.053 ms
1.150 ms
1.332 ms
1.125 ms
1.305 ms
1.298 ms
1.347 ms
1.104 ms
1.210 ms
1.430 ms
1.344 ms
1.148 ms
1.075 ms
1.299 ms
1.099 ms
1.165 ms
1.062 ms
1.181 ms
1.053 ms
1.438 ms
1.139 ms
1.400 ms
1.364 ms
1.126 ms
1.130 ms
1.064 ms
1.292 ms
1.141 ms
1.169 ms
1.302 ms
11.214 ms
1.337 ms
1.154 ms
1.299 ms
2.875 ms
1.189 ms
1.331 ms
1.163 ms
1.269 ms
1.392 ms
1.315 ms
1.306 ms
1.358 ms
1.342 ms
1.141 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 hop0.579 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.179 msReply RTT AS8002 · Stealth
Before

TCP traceroute / 443 · Recorded address 1

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.154 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.182 msReply RTT AS8002 · Stealth
  3. TTL 3 Probe hopNo replyNo comparable RTT ASN unavailable
  4. TTL 4 Probe hop1.824 msReply RTT AS13335 · Cloudflare
  5. TTL 5 Probe hop41.008 msReply RTT AS13335 · Cloudflare
  6. TTL 6 Probe hopNo replyNo comparable RTT ASN unavailable
  7. TTL 7 Destination1.671 msReply RTT AS13335 · Cloudflare
Before

ICMP traceroute · Destination 1

Comparison window · median of 9 traces


to UTC

  1. TTL 1 Stealth associated hop0.136 msMedian reply RTT9/9 replies · 100.0%ASN unavailable
  2. TTL 2 Stealth associated hop0.183 msMedian reply RTT9/9 replies · 100.0%ASN unavailable
  3. TTL 3 First responding external hop1.007 msMedian reply RTT6/9 replies · 66.7%AS13335 · Cloudflare
Before

TCP/443 traceroute · Destination 2

Comparison window · median of 9 traces


to UTC

  1. TTL 1 Stealth associated hop0.188 msMedian reply RTT9/9 replies · 100.0%ASN unavailable
  2. TTL 2 Stealth associated hop0.254 msMedian reply RTT9/9 replies · 100.0%ASN unavailable
  3. TTL 3 First responding external hop13.438 msMedian reply RTT6/9 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 reply1.418 msMedian reply RTT8/9 replies · 88.9%ASN unavailable
  7. TTL 7 Unidentified or changing hopUnavailableMedian reply RTTReply coverage unavailableASN unavailable
Before

ICMP traceroute · Destination 3

Comparison window · median of 21 traces


to UTC

  1. TTL 1 Stealth associated hop0.145 msMedian reply RTT21/21 replies · 100.0%ASN unavailable
  2. TTL 2 Stealth associated hop0.181 msMedian reply RTT21/21 replies · 100.0%ASN unavailable
  3. TTL 3 First responding external hop6.525 msMedian reply RTT15/21 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
Before

TCP/443 traceroute · Destination 4

Comparison window · median of 21 traces


to UTC

  1. TTL 1 Stealth associated hop0.174 msMedian reply RTT21/21 replies · 100.0%ASN unavailable
  2. TTL 2 Stealth associated hop0.196 msMedian reply RTT21/21 replies · 100.0%ASN unavailable
  3. TTL 3 First responding external hop2.963 msMedian reply RTT18/21 replies · 85.7%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 reply1.389 msMedian reply RTT16/21 replies · 76.2%ASN unavailable
  7. TTL 7 Destination reply1.528 msMedian reply RTT5/21 replies · 23.8%ASN unavailable
Before

ICMP traceroute · Recorded address 1

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.125 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.179 msReply RTT AS8002 · Stealth
  3. TTL 3 Probe hop0.803 msReply RTT AS13335 · Cloudflare
Before

TCP traceroute / 443 · Recorded address 2

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.176 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.198 msReply RTT AS8002 · Stealth
  3. TTL 3 Probe hop1.675 msReply RTT AS13335 · Cloudflare
  4. TTL 4 Probe hopNo replyNo comparable RTT ASN unavailable
  5. TTL 5 Probe hop3.898 msReply RTT AS13335 · Cloudflare
  6. TTL 6 Destination1.307 msReply RTT AS13335 · Cloudflare
Before

TCP traceroute / 443 · Recorded address 1

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.241 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.259 msReply RTT AS8002 · Stealth
  3. TTL 3 Probe hop8.554 msReply RTT ASN unavailable
  4. TTL 4 Probe hopNo replyNo comparable RTT ASN unavailable
  5. TTL 5 Probe hop2.162 msReply RTT AS13335 · Cloudflare
  6. TTL 6 Destination1.446 msReply RTT AS13335 · Cloudflare
During

ICMP traceroute · Recorded address 1

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.125 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.265 msReply RTT AS8002 · Stealth
  3. TTL 3 Probe hop58.341 msReply RTT ASN unavailable
During

TCP traceroute / 443 · Recorded address 2

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.134 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.182 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 hop2.254 msReply RTT AS13335 · Cloudflare
  6. TTL 6 Probe hopNo replyNo comparable RTT ASN unavailable
  7. TTL 7 Destination1.622 msReply RTT AS13335 · Cloudflare
During

ICMP traceroute · Recorded address 2

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.145 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.182 msReply RTT AS8002 · Stealth
  3. TTL 3 Probe hop10.968 msReply RTT AS13335 · Cloudflare
During

TCP traceroute / 443 · Recorded address 1

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.150 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.179 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 hop1.688 msReply RTT AS13335 · Cloudflare
  6. TTL 6 Probe hopNo replyNo comparable RTT ASN unavailable
  7. TTL 7 Destination1.705 msReply RTT AS13335 · Cloudflare
During

ICMP traceroute · Destination 1

Comparison window · median of 8 traces


to UTC

  1. TTL 1 Stealth associated hop0.132 msMedian reply RTT8/8 replies · 100.0%ASN unavailable
  2. TTL 2 Stealth associated hop0.187 msMedian reply RTT8/8 replies · 100.0%ASN unavailable
  3. TTL 3 First responding external hop3.834 msMedian reply RTT7/8 replies · 87.5%AS13335 · Cloudflare
During

TCP/443 traceroute · Destination 2

Comparison window · median of 15 traces


to UTC

  1. TTL 1 Stealth associated hop0.193 msMedian reply RTT15/15 replies · 100.0%ASN unavailable
  2. TTL 2 Stealth associated hop0.203 msMedian reply RTT15/15 replies · 100.0%ASN unavailable
  3. TTL 3 First responding external hop11.211 msMedian reply RTT12/15 replies · 80.0%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 Destination reply1.454 msMedian reply RTT12/15 replies · 80.0%ASN unavailable
  7. TTL 7 Unidentified or changing hopUnavailableMedian reply RTTReply coverage unavailableASN unavailable
During

ICMP traceroute · Destination 3

Comparison window · median of 22 traces


to UTC

  1. TTL 1 Stealth associated hop0.131 msMedian reply RTT22/22 replies · 100.0%ASN unavailable
  2. TTL 2 Stealth associated hop0.183 msMedian reply RTT22/22 replies · 100.0%ASN unavailable
  3. TTL 3 First responding external hop1.762 msMedian reply RTT18/22 replies · 81.8%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 4

Comparison window · median of 15 traces


to UTC

  1. TTL 1 Stealth associated hop0.184 msMedian reply RTT15/15 replies · 100.0%ASN unavailable
  2. TTL 2 Stealth associated hop0.186 msMedian reply RTT15/15 replies · 100.0%ASN unavailable
  3. TTL 3 First responding external hop6.494 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 reply1.417 msMedian reply RTT10/15 replies · 66.7%ASN unavailable
  7. TTL 7 Destination reply2.158 msMedian reply RTT5/15 replies · 33.3%ASN unavailable
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
  2. TTL 2 Probe hop0.180 msReply RTT AS8002 · Stealth
  3. TTL 3 Probe hop1.830 msReply RTT ASN unavailable
During

TCP traceroute / 443 · Recorded address 2

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.163 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.206 msReply RTT AS8002 · Stealth
  3. TTL 3 Probe hop5.191 msReply RTT ASN unavailable
  4. TTL 4 Probe hopNo replyNo comparable RTT ASN unavailable
  5. TTL 5 Probe hop2.906 msReply RTT AS13335 · Cloudflare
  6. TTL 6 Destination1.009 msReply RTT AS13335 · Cloudflare
After

ICMP traceroute · Recorded address 2

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.131 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.202 msReply RTT AS8002 · Stealth
  3. TTL 3 Probe hop0.947 msReply RTT ASN unavailable
After

TCP traceroute / 443 · Recorded address 1

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.222 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.181 msReply RTT AS8002 · Stealth
  3. TTL 3 Probe hop22.769 msReply RTT ASN unavailable
  4. TTL 4 Probe hopNo replyNo comparable RTT ASN unavailable
  5. TTL 5 Probe hop2.065 msReply RTT AS13335 · Cloudflare
  6. TTL 6 Destination1.516 msReply RTT AS13335 · Cloudflare
After

ICMP traceroute · Recorded address 1

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.123 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.177 msReply RTT AS8002 · Stealth
  3. TTL 3 Probe hop30.743 msReply RTT AS13335 · Cloudflare
After

TCP traceroute / 443 · Recorded address 2

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.157 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.180 msReply RTT AS8002 · Stealth
  3. TTL 3 Probe hop10.488 msReply RTT AS13335 · Cloudflare
  4. TTL 4 Probe hopNo replyNo comparable RTT ASN unavailable
  5. TTL 5 Probe hop2.131 msReply RTT AS13335 · Cloudflare
  6. TTL 6 Probe hopNo replyNo comparable RTT ASN unavailable
  7. TTL 7 Destination1.416 msReply RTT AS13335 · Cloudflare
After

ICMP traceroute · Recorded address 1

Recorded trace · destination not reached by this trace


to UTC

  1. TTL 1 Probe hop0.128 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.183 msReply RTT AS8002 · Stealth
  3. TTL 3 Probe hop3.530 msReply RTT ASN unavailable
After

TCP traceroute / 443 · Recorded address 1

Recorded trace · destination replied


to UTC

  1. TTL 1 Probe hop0.177 msReply RTT AS8002 · Stealth
  2. TTL 2 Probe hop0.176 msReply RTT AS8002 · Stealth
  3. TTL 3 Probe hop15.004 msReply RTT ASN unavailable
  4. TTL 4 Probe hopNo replyNo comparable RTT ASN unavailable
  5. TTL 5 Probe hop1.812 msReply RTT AS13335 · Cloudflare
  6. TTL 6 Destination1.399 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
10.125 msAS8002 · Stealth0.125 msAS8002 · StealthSame responder
20.179 msAS8002 · Stealth0.265 msAS8002 · StealthSame responder
30.803 msAS13335 · Cloudflare58.341 msSame 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
10.241 msAS8002 · Stealth0.150 msAS8002 · StealthSame responder
20.259 msAS8002 · Stealth0.179 msAS8002 · StealthSame responder
38.554 msNo replyNot established
4No replyNo replyNot established
52.162 msAS13335 · Cloudflare1.688 msAS13335 · CloudflareDifferent responders
61.446 msAS13335 · CloudflareNo replyNot established
7Not recorded1.705 msAS13335 · CloudflareNot 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
10.176 msAS8002 · Stealth0.134 msAS8002 · StealthSame responder
20.198 msAS8002 · Stealth0.182 msAS8002 · StealthSame responder
31.675 msAS13335 · CloudflareNo replyNot established
4No replyNo replyNot established
53.898 msAS13335 · Cloudflare2.254 msAS13335 · CloudflareDifferent responders
61.307 msAS13335 · CloudflareNo replyNot established
7Not recorded1.622 msAS13335 · CloudflareNot 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

Findings differ by destination.

Findings differ between destination comparisons. The evidence does not point to one location for the whole event.

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 RTT1.278 msUsual round trip before the event
Last recorded event RTT1.329 msLast successful event recording
Event p95 RTT18.553 ms95th percentile of successful recordings
Change from baseline+0.051 msLast event RTT compared with the baseline
Successful / expected recordings216 / 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