Message Delivery

Understanding MQTT QoS Levels

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Understanding MQTT QoS Levels

Introduction In unstable network environments, using the TCP transport protocol, MQTT may face challenges in ensuring reliable communication. To address this issue, MQTT introduces a QoS mechanism that provides various message interaction options to meet specific requirements for reliable message delivery in different scenarios. In this article, we will explore the QoS levels 0, 1, … Read more

What is QoS in MQTT?

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What is QoS in MQTT?

In the last issue, we introduced the core of MQTT: The core of MQTT communication: Topic This time we will detail QoS, which stands for Quality of Service. (QoS) is a protocol between the message sender and receiver that defines the level of delivery guarantee for specific messages. Below, we will delve deeper into the … Read more