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From what I have read and understood from their documentation is that only single layer IoT hierarchies can be maintained with either of their gateways. That is a field gateway(sort of like a smart router) sits between the server and edge devices and does the preprocessing and edge computing.

What I am wondering is whether field gateways provided from either vendor(AWS or Azure) can be nested as parent and children to create multi-layered IoT device hierarchies. That is gateways connected to gateways and so on.

EDIT - This kind of hierarchies would create Fog networks which would enable sub-networks within the hierarchy to function more independently without being over-reliant on the server. Also, they'd reduce the load on the server if the edge gateway could do edge computing while reducing latency as well.

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    What would be the benefit of such a design? – Helmar Jul 15 '18 at 19:19
  • @Helmar to create nested hierarchies with fog nodes. Fog networks would enable sub-networks within the hierarchy to function more independently without being over-reliant on the server. Also, they'd reduce the load on the server if the edge gateway could do edge computing and reduce latency as well. – nuwnjay Jul 16 '18 at 6:06
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    Please include the information in the question via edit. – Helmar Jul 16 '18 at 17:54
  • @Helmar noted, will do – nuwnjay Jul 18 '18 at 4:57

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