If all 4000 devices per cell send 300 messages per day, this would equal to roughly 14 messages sent per second. How can we be sure that the network does indeed support this number of devices with this number of data messages per day? Is the network up to this? And what would these messages look like? Will we be using high level protocols (like HTTPS or MQTT) and what should be the payload length? Will we use JSON or XML payload or must we try to encode as efficiently as possible using NB-IoT? And how do we test this network before a massive roll out of devices takes place?
To answer these questions, SODAQ developed a Load Tester for Deutsche Telekom.