Communication Protocols: From TCP/IP to MQTT
Communication Protocols: From TCP/IP to MQTT Protocols are the rules that let devices talk. The Internet rests on TCP/IP, a sturdy suite that handles address, routing, and reliable data transfer. MQTT offers a different kind of conversation: a lightweight, publish-subscribe protocol designed for small devices and unreliable networks. Understanding both helps you build systems that are fast, scalable, and easy to maintain. TCP/IP basics matter. IP handles addressing and routing, while TCP provides a reliable stream with a handshake. If a network drops a packet, TCP may retry and reorder data. UDP is faster but unreliable. MQTT sits on top of TCP, so it inherits reliability, but it abstracts delivery through a broker and topics rather than direct point-to-point sends. ...