A controlling device of an autonomous routing area network, the controlling device comprising: a processing unit configured to perform acts comprising: receiving a request from a requesting device to join the autonomous routing area network; and in response to receiving the request: determining, based on information included in the request, whether the requesting device is an isolated device, wherein the requesting device is an isolated device if it is incapable of joining networks other than the autonomous routing area network; controlling a rejection or acceptance of admission of the requesting device to the autonomous routing area network based on whether the requesting device is an isolated device; and in response to determining that the requesting device is an isolated device: admitting the requesting device to the network regardless of whether a load on the network is greater than or equal to a predetermined threshold for accommodation; and forcing one or more devices that are currently included in the network to leave or migrate from the network, wherein forcing the one or more devices to leave or migrate comprises: selecting the one or more devices based on one or more heuristic strategies; and sending an instruction or request to the one or more devices to leave or migrate from the network. receiving a request from a requesting device to join the autonomous routing area network; and in response to receiving the request: determining, based on information included in the request, whether the requesting device is an isolated device, wherein the requesting device is an isolated device if it is incapable of joining networks other than the autonomous routing area network; controlling a rejection or acceptance of admission of the requesting device to the autonomous routing area network based on whether the requesting device is an isolated device; and in response to determining that the requesting device is an isolated device: admitting the requesting device to the network regardless of whether a load on the network is greater than or equal to a predetermined threshold for accommodation; and forcing one or more devices that are currently included in the network to leave or migrate from the network, wherein forcing the one or more devices to leave or migrate comprises: selecting the one or more devices based on one or more heuristic strategies; and sending an instruction or request to the one or more devices to leave or migrate from the network. determining, based on information included in the request, whether the requesting device is an isolated device, wherein the requesting device is an isolated device if it is incapable of joining networks other than the autonomous routing area network; controlling a rejection or acceptance of admission of the requesting device to the autonomous routing area network based on whether the requesting device is an isolated device; and in response to determining that the requesting device is an isolated device: admitting the requesting device to the network regardless of whether a load on the network is greater than or equal to a predetermined threshold for accommodation; and forcing one or more devices that are currently included in the network to leave or migrate from the network, wherein forcing the one or more devices to leave or migrate comprises: selecting the one or more devices based on one or more heuristic strategies; and sending an instruction or request to the one or more devices to leave or migrate from the network. admitting the requesting device to the network regardless of whether a load on the network is greater than or equal to a predetermined threshold for accommodation; and forcing one or more devices that are currently included in the network to leave or migrate from the network, wherein forcing the one or more devices to leave or migrate comprises: selecting the one or more devices based on one or more heuristic strategies; and sending an instruction or request to the one or more devices to leave or migrate from the network. selecting the one or more devices based on one or more heuristic strategies; and sending an instruction or request to the one or more devices to leave or migrate from the network.