Ambient state
Mesh presence is INFO: excluded from a place's
totalActive, its severity counts, its top events and its
area mode. A busy mesh does not raise an alert level, and a quiet one does not lower
it.
Monitor: a second source
Everything else on this page is what a node broadcast . The
Monitor column is what an operator-run monitor read by
logging into the node — battery, temperature, and the fact that it could be reached
at all — pushed to /api/v1/ingest/mesh.repeater.
not monitored is the common state: no monitor is watching
the node, which does not mean it is down . A
node that has gone quiet cannot be told from one that is fine, but a monitor that
tried to log in and failed can, which is why UNREACHABLE
gets its own ring on the map. Open a node for its full telemetry.
Telemetry is volatile
SNR, RSSI, hop count and everything a monitor reports are deliberately excluded from
the content hash, so they never mint a revision — only a node's identity, location,
status or reachability does.
Missing telemetry renders as — , never 0 .
Which clock
Heard is the later of
telemetry.lastRelayedAt (a packet the node relayed reached
us) and telemetry.lastHeardAt (its own advert did), both on
our clock. A backbone repeater adverts every day or two and relays all day, so the
first is usually the fresher.
Not the event's observedAt, which moves only when something
hashed changes, and not telemetry.lastAdvertAt, which the
node stamps from its own unsynchronized clock.
SIERRA's own gateways
Whether each SIERRA gateway is online and free to use is on Relay ,
served by the mesh relay rather than this API.