A network controller is configured to cause a network to implement a primary network configuration of a network and a secondary network configuration as a backup to the primary network configuration. The network controller may be configured to receive information from a plurality of nodes of a network and information related to the client data to be transmitted through the network. Based on the node information, the network controller is configured to determine available nodes and possible links in the network and then determine a topology of the network. The primary network configuration is determined based on the topology. The network controller then sends instructions to the plurality of nodes of the network to implement the primary network configuration and to switch to a secondary network configuration where a failure of the primary network configuration occurs, wherein the secondary network configuration implements mobile ad-hoc networking in the determined topology.

A transmission method for transmitting a fragment of an IP packet from a first node device to a third node device through a second node device. The first and second node devices are configured for communicating by powerline and by radio frequency. The second and third node devices can communicate only using a single communication medium from powerline and radio frequency. A first fragment sent by said first node device either by powerline or by radio frequency is received. An acknowledgement message is sent by to said first node device using a second communication medium selected from powerline and radio frequency so that it is different from said single medium. Then said first fragment is transmitted to said third node device using said single communication medium.

A transmission method for transmitting a fragment of an IP packet from a first node device to a third node device through a second node device. The first and second node devices are configured for communicating by powerline and by radio frequency. The second and third node devices can communicate only using a single communication medium from powerline and radio frequency. A first fragment sent by said first node device either by powerline or by radio frequency is received. An acknowledgement message is sent by to said first node device using a second communication medium selected from powerline and radio frequency so that it is different from said single medium. Then said first fragment is transmitted to said third node device using said single communication medium.

The present disclosure provides method and system for a processor configured to receive, via a communication interface, cellular communication exchanged over at least one cellular network and fixed-network communication exchanged with a router connected to a fixed network. The method and system further correlating between the cellular communication and the fixed-network communication, and computing respective likelihoods for multiple cellular devices having connected to the fixed network via the router. In response to computing the likelihoods, compute one or more estimated properties associated with the router, and output the estimated properties.

The present disclosure provides method and system for a processor configured to receive, via a communication interface, cellular communication exchanged over at least one cellular network and fixed-network communication exchanged with a router connected to a fixed network. The method and system further correlating between the cellular communication and the fixed-network communication, and computing respective likelihoods for multiple cellular devices having connected to the fixed network via the router. In response to computing the likelihoods, compute one or more estimated properties associated with the router, and output the estimated properties.

A server-based environment for reporting a status of a security, monitoring and automation controller is provided. Detecting cessation of an always-on persistent network connection between the SMA controller and the server is also provided. Reporting the cessation of the network connection to an end user and defined others is further provided. A further aspect provides for automatically reporting an alarm event to a central station, the end user, and others, in the event the cessation of the network connection occurs while the SMA controller is aimed and after a zone fault event, and not receiving a disarm notification prior to expiration of a preset entry delay.

A server-based environment for reporting a status of a security, monitoring and automation controller is provided. Detecting cessation of an always-on persistent network connection between the SMA controller and the server is also provided. Reporting the cessation of the network connection to an end user and defined others is further provided. A further aspect provides for automatically reporting an alarm event to a central station, the end user, and others, in the event the cessation of the network connection occurs while the SMA controller is aimed and after a zone fault event, and not receiving a disarm notification prior to expiration of a preset entry delay.

A software defined network controller receives from a radio access network access point an attach request generated by a user equipment that includes a user equipment identification and an IP address for the radio access network access point. The controller assigns a temporary identification to the user equipment and sends a modified attach request including the temporary identification, and application server identification and an application server IP address to the radio access network access point. The controller configures a forwarding table associated with the radio access network access point so that the access point forwarding table matches the user equipment identification, the application server identification and the application server IP address. The controller configures a service edge creation environment function forwarding table so that the forwarding table matches the user equipment identification mapped to the radio access network access point IP address.

A software defined network controller receives from a radio access network access point an attach request generated by a user equipment that includes a user equipment identification and an IP address for the radio access network access point. The controller assigns a temporary identification to the user equipment and sends a modified attach request including the temporary identification, and application server identification and an application server IP address to the radio access network access point. The controller configures a forwarding table associated with the radio access network access point so that the access point forwarding table matches the user equipment identification, the application server identification and the application server IP address. The controller configures a service edge creation environment function forwarding table so that the forwarding table matches the user equipment identification mapped to the radio access network access point IP address.

A routing table creation method, an electronic device, and a network are provided. The method includes: generating a first probe packet, where the first probe packet has a source address and a destination address; sending, from a source node corresponding to the source address, the first probe packet on a network including at least two nodes, until the first probe packet reaches a destination node corresponding to the destination address, and recording addresses of nodes through which the first probe packet passes, to form a first path; generating a second path according to the first path, where the second path is a reverse path of the first path; generating a first response packet, sending the first response packet along a second path until the first response packet reaches the source node; and creating a routing table entry according to the second path.