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Who goes dark together.

Which sensors stop together when a radio site, a span, a feed, a UPS or a satellite hub fails.

1

A sensor-to-path map: site, span, feed, UPS, hub

2

Hand-declared first; inferred later

3

Correlated loss scored against random loss

What it would do

One failure, many gauges

Radio site

Every sensor that reports through it goes quiet at once.

Feed and UPS

A station runs on battery, then its sensors stop at a known time.

Satellite hub

The fallback returns, thin and slow.

Tournament t001: correlated loss shortens holding to 0.91× random loss at the same rate. See the proof page.

What it needs

  • Sensor list with the path each one reports over
  • UPS runtimes
  • Backhaul topology

What it is not

  • Not a network inventory
  • Hand-declared map only; inference not built
Works with
Mask — Who goes dark together. · Holdover