Zenoh: Unifying Communication, Storage and Computation from the Cloud to the Microcontroller

An increasing number of systems span from the data-center down to the micro-controller and need to smoothly operate across this continuum composed by extremely heterogeneous network technologies and computing platforms. Building these systems is quite challenging due to limitations of existing technological stacks. This paper introduces Zenoh a Pub/Sub-/Query protocol that unifies data at rest, data in motion and computations. Zenoh has been designed ground-up to address the needs of the cloud to micro-controller continuum. It has a minimal wire overhead of 5 bytes, it runs and perform on constrained as well as on high end networks and hardware.