Protocol

MQTT

Lab ready Full lab

Publish/subscribe messaging over TCP with QoS 0/1/2 delivery grades. Topics, retain flags, and last-will messages are core broker features for IoT telemetry. MQTT 5 adds reason codes, user properties, and shared subscriptions.

Tags

pubsubiotbrokerqos

Sources

  • OASIS MQTT 3.1.1 / 5.0

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