MQTT - MQ Telemetry Transport | Basic MQTT Terminologies by abhishek singh

By De-code -

MQTT is a standard messaging protocol for IoT (internet of things), it is a too lightweight public/subscribe transport, due to its lightweight the communication is too fast and use minimal network bandwidth, nowadays it is In demand in various industries like robotics, automotive, manufacturing, telecommunication, etc.

What are the features of MQTT :

  • MQTT is a lightweight message queuing and transport protocol.
  • Allows bi-directional communication.
  • Asynchronous communication model with a message.
  • Reliable delivery of messages
  • Based on Publish / Subscribe model.
  • Communication between Publisher and the subscriber happens because of the broker.
  • Topics help to segregate messages.

MQTT Base Model



MQTT

MQTT entities 


  • MQTT Clients: 
    • Publisher and Subscriber.
  • MQTT Server:     
    • Broker.
    • Topics

MQTT   Model 2

  • Session
  • Subscription
  • Message :  

 CONNACK

 SUBACK

 PUBLISH

 RETAIN 

 DUP

 QoS.

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