Equipment observations and local labels for the confirmed equipment subnet.

Commands

label/3 saves a label and returns :ok after persistence, or {:error, reason}. Use NervesGate.equipment_scan/1 for an active scan: Network reserves its LAN worker so scanning cannot overlap network reconfiguration.

Queries and notifications

status/1 returns the scope, entries, scan progress and errors. Entries and labels are capped at 256 each; observations are not proof of reachability. observe/1 subscribes the caller to inventory changes; reread status afterward. The optional server argument defaults to this module.

Passive discovery failures for a confirmed scope set :equipment_discovery_unavailable. A successful observation (even an empty inventory) or removing the equipment configuration clears it. Scan results, label commands and temporarily unknown network state do not clear that fault.