ReadonlyaddressNetwork address (IP / multicast group / NIC depending on protocol).
Optional ReadonlychannelsChannel count, when the announce/SDP carries it.
ReadonlyfirstISO-8601 timestamp first seen.
ReadonlyidStable id within its protocol (MAC, DNS-SD instance, SDP origin, …).
ReadonlylastISO-8601 timestamp last seen.
Optional ReadonlymetaFree-form protocol-specific metadata (ptime, model, sample rate, …).
ReadonlynameHuman-readable device name.
ReadonlyprotocolDiscovery protocol that found it.
A device found on the network by a discovery probe.