Characterstics of MQTT
- Lightweight: MQTT is designed to be lightweight, making it suitable for use in aid-restrained environments inclusive of embedded systems and low-strength devices. The protocol minimizes bandwidth and processing overhead, enabling green communication even on restricted networks.
- Publish-Subscribe Model: In the publish-subscribe version, clients (publishers) send messages to subjects, and different clients (subscribers) acquire messages from subjects of interest. This decoupling of producers and purchasers permits for flexible and dynamic conversation styles.
- Quality of Service (QoS) Levels: MQTT supports exclusive stages of message delivery warranty, referred to as Quality of Service (QoS). QoS levels range from 0 to 2, providing various stages of reliability and message transport guarantees, relying at the utility necessities.
- Retained Messages: MQTT lets in agents to store retained messages on topics, making sure that new subscribers acquire the maximum latest message posted on a subject right now after subscribing. This characteristic is beneficial for fame updates and configuration settings.
- Last Will and Testament (LWT): MQTT clients can specify a Last Will and Testament message to be posted by way of the broker in the occasion of an sudden consumer disconnect. This function affords a mechanism for detecting patron failures and dealing with them gracefully.
- Security: MQTT helps various protection mechanisms, consisting of Transport Layer Security (TLS) encryption and authentication mechanisms which include username/password and consumer certificates. These capabilities make certain the confidentiality, integrity, and authenticity of messages exchanged over MQTT connections.
Introduction of Message Queue Telemetry Transport Protocol (MQTT)
Message Queuing Telemetry Transport, or MQTT, is a communications protocol designed for Internet of Things devices with extremely high latency and restricted low bandwidth. Message Queuing Telemetry Transport is a perfect protocol for machine-to-machine (M2M) communication since it is designed specifically for low-bandwidth, high-latency settings.