January 2018
Intermediate to advanced
524 pages
13h 33m
English
Content preview from Internet of Things for Architects
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MQTT packet structure
An MQTT packet sits on top of the TCP layer of the OSI model network stack. The packet consists of a 2 byte fixed header, which must always be present, a variably sized header (optional) and concludes with the payload (again, optional):
Common packet structure of MQTT
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