Any device we want to be ab le connect to a global network should have an unique global identifier. The size of this identifier can be an unaceptable overhead for devices with limited resources (sensors, toys, disposable devices, microrobots, etc.), because conventional protocols use full addresses to transmit, process and store the data required for routing. The usual solution for such devices is to limit the address space to one or two bytes, but this sacrifices the global unicity of the identifiers. Another more drastic maesure is to without any routing at al
