On the one hand, the "data entity" creates and manages network layer data units from the payload of the application-layer and performs routing according to the current topology. On the other hand, there is the layer "control", which is used to handle the configuration of new devices and establish new networks: it can determine whether a neighboring device belongs to the network and discovers new neighbors and routers. The control can also detect the presence of a receiver, which allows direct communication and MAC synchronization.