What is microServiceBus.com?
MicroServiceBus.com is the platform for holding it all together. It acts as a device management tool where all services and flows are stored together with tracking- and security configuration. You can think of this tool as a way to orchestrate all communication between the Nodes. It is also responsible for making sure that all Nodes that are connected are trusted and secure. When a Node connects, microServiceBus will provide the Node with its itineraries. If one or more itineraries are changed, the Node will restart all of the services that are currently running.
As you have probably already figured out, the device management tool is very much a single-point-of-failure. If it goes down or fails to process the payload, all interchanges will grind to a halt. MicroServiceBus is load balanced, and will scale depending on the current load.