Abstract: Methods/devices for managing messages broadcast in a local area network (LAN) include nodes allowing an extension of wireless communication coverage and stations. The nodes are connected together by a backhaul subnetwork, and at least one node sends at least one wireless network to which the stations are connected. The LAN includes a primary subnetwork and a secondary subnetwork. The primary subnetwork is a subnetwork to which the links of the backhaul network and the nodes belong. The secondary subnetwork is composed of at least one station and is isolated from the rest of the LAN by a virtual network. A node able to apply the filtering rules demands an analysis of the topology of the local network, determines, from the topology of the LAN, filtering rules to be applied, and applies the filtering rules determined to the broadcast packets including at least one item of information identifying the virtual network.

Abstract: A method for switching off a communication network is provided. The communication network includes a plurality of access points coordinated by a master device, where each access point manages a wireless network known as a fronthaul network, and where a station is able to associate itself with a fronthaul network of the communication network. At least one item of information relating to each associated station is obtained from each access point, and, for each station, it is determined as to whether it is present or absent according to association information. A phase of switching off at least one fronthaul network is initiated when all the stations are determined as being absent from the communication network.

Abstract: A wireless communication network that includes a backhaul network interconnecting node devices for extending a radio coverage of a wireless fronthaul network by using a plurality of access points of the wireless fronthaul network, the communication channel is used for interconnecting said node devices. A node device of the backhaul network makes an evaluation of the transmission conditions of its radio environment; calculates a score representing a quality of transmission via this communication channel; transmits to said master node device a message requesting change of communication channel of the backhaul network when at least one other communication channel has obtained a better score than the communication channel selected by the master node device. On reception of the message, master node device obtains scores for the other node devices, and decides to change, or not, communication channel used in the backhaul network according to the scores obtained.

Abstract: A method for selecting operational channels in a communication network including a plurality of gathering nodes connected together by cable links and wireless links. The method includes: for each branch, selecting and using at least one operational channel, and informing the other branches of the selection thereof, and determining whether there exists at least one selected operational channel in common between the branch and another; identifying at least one group of branches wherein each branch has at least one selected channel in common with another in the group and wherein each branch sees from a radio-propagation point of view at least one other branch in the set; for each group of branches identified, selecting at least one operational channel by realigning within the group the selections of at least one operational channel made by branch; for each group of branches, applying the channel selected by the group.

Abstract: A method for selecting operational channels in a communication network including a plurality of gathering nodes connected together by cable links and wireless links. The method includes: for each branch, selecting and using at least one operational channel, and informing the other branches of the selection thereof, and determining whether there exists at least one selected operational channel in common between the branch and another; identifying at least one group of branches wherein each branch has at least one selected channel in common with another in the group and wherein each branch sees from a radio-propagation point of view at least one other branch in the set; for each group of branches identified, selecting at least one operational channel by realigning within the group the selections of at least one operational channel made by branch; for each group of branches, applying the channel selected by the group.

Abstract: A method for configuring a communication network including a gateway adapted for connecting the communication network to a wide area communication network and connected to a plurality of nodes implementing an access point functionality is described. The nodes are coordinated in a centralised manner by a current master node selected from the plurality of nodes. The current master node obtains a virtual MAC address and an IP address associated with the virtual MAC address, the IP address being reserved for configuring network services. It next configures a virtual network interface from the IP address associated with the virtual MAC address.

Abstract: A method and device for protecting a local area network including nodes allowing an extension of wireless communication coverage in order to increase the range of the local area network by coordinating a plurality of access points integrated in the nodes, the nodes being interconnected by a backhaul subnetwork, each node in the backhaul subnetwork transmitting at least one wireless network referred to as a fronthaul network, the method includes the steps of: detecting a connection of a station by a cable connection to a network switch included in the local area network, the network switch being connected to the backhaul subnetwork by a cable connection, establishing secure connections between each node if the connection of the station by a cable connection to the network switch is detected, managing the nodes of the network connected to the network switch with filtering rules applied to the data received by the nodes.

Abstract: A method for configuring a wireless communication coverage extension system is described. The latter comprises a backhaul subnetwork in tree form comprising a plurality of interconnected nodes. At least two nodes directly connected to an internet access gateway are identified among the nodes of the backhaul subnetwork. A single node is selected from the at least two identified nodes to be the node through which a configuration of the wireless communication coverage extension system is defined. The configuration of the wireless communication coverage extension system defined is then sent from the selected node to all the other nodes of the backhaul subnetwork.

Abstract: A method for connecting a node of a wireless-communication coverage-extension system is provided. The node determines whether it has been moved out of an initial local area network. In the case where the node has been moved, a local area network is established from the moved node by activating an address server functionality. The moved node is then connected to a point of access to the internet. A secure tunnel is next established between the moved node and a master node coordinating the initial local area network. The address server functionality is then deactivated and a client functionality of an address server of the initial local area network is activated.

Abstract: A method for determining whether an IP address is attributed in a communication network including at least one gateway, said method implemented by the gateway and includes: configuring a filter to receive first address test messages, each first filtered address test message targeting an IP address and requesting any terminal to which the target IP address is attributed to send an address-signaling message; sending at least one second address test message targeting said target IP address; determining that the target IP address is attributed to a terminal if an address-signaling message having said target IP address as its source IP address is received; and determining that the target IP address is not attributed to a terminal if no address-signaling message having said target IP address as its source IP address is received when a number of second address test messages targeting said IP address sent exceeds a predefined threshold.

Abstract: A method for indicating a use of an illicit IP address in a local communication network connected to a wide area communication network by a router, the method including: receiving a packet from at least one device in the local communication network using an illicit IP address; generating an error message marked with a predefined mark; sending the marked error message to the at least one device using an additional routing table redirecting each packet to the local communication network and a routing rule applying the additional routing table to each packet marked with the predefined mark.

Abstract: A wireless communication network that includes a backhaul network interconnecting node devices for extending a radio coverage of a wireless fronthaul network by using a plurality of access points of the wireless fronthaul network, the communication channel is used for interconnecting said node devices. A node device of the backhaul network makes an evaluation of the transmission conditions of its radio environment; calculates a score representing a quality of transmission via this communication channel; transmits to said master node device a message requesting change of communication channel of the backhaul network when at least one other communication channel has obtained a better score than the communication channel selected by the master node device. On reception of the message, master node device obtains scores for the other node devices, and decides to change, or not, communication channel used in the backhaul network according to the scores obtained.

Abstract: A method for switching off a communication network, the communication network includes a plurality of access points coordinated by a master device, each access point managing a wireless network known as a fronthaul network, a station being able to associate itself with a fronthaul network of the communication network. The method is implemented by the master device and comprises: obtaining from each access point at least one item of information relating to each associated station; determining, for each station, whether it is present or absent according to association information; and initiating a phase of switching off at least one fronthaul network when all the stations are determined as being absent from the communication network.

Abstract: A method for configuring a wireless communication coverage extension system is described. The latter comprises a backhaul subnetwork in tree form comprising a plurality of interconnected nodes. At least two nodes directly connected to an internet access gateway are identified among the nodes of the backhaul subnetwork. A single node is selected from the at least two identified nodes to be the node through which a configuration of the wireless communication coverage extension system is defined. The configuration of the wireless communication coverage extension system defined is then sent from the selected node to all the other nodes of the backhaul subnetwork.

Abstract: The invention relates to managing requests for subscription to multicast transmissions in a communication network, at least two branches thereof being interconnected by an interconnection device comprising a module consuming such subscription requests preventing the propagation of said requests from one branch to another. At least one of said branches comprising at least one bridge device, the interconnection device comprising a subscription announcement module, said subscription announcement module performs the following step: upon reception (404; 412) via a branch of a first request for subscription to a multicast transmission, transmitting (407; 415) a second request for subscription to said multicast transmission at least via the branch via which said first subscription request was received.

Abstract: In a communication network, a client has a plurality of network interfaces connecting it to a server able to deliver data streams on multicast groups. The client obtains a first request for subscription to a multicast group allowing to obtain a data stream. The client replaces the first subscription request with a plurality of second requests for subscription to a plurality of multicast subgroups able to supply data sub-streams which, once combined, allow to reconstruct the data stream. Each second subscription request is transmitted over a network interface with which the request was associated, so as to favour use of each available network interface. The client receives, over each network interface, a data sub-stream corresponding to the second subscription request transmitted over said network interface and reconstructs the data stream from the data sub-streams.

Abstract: In a communication network, a client has a plurality of network interfaces connecting it to a server able to deliver data streams on multicast groups. The client obtains a first request for subscription to a multicast group allowing to obtain a data stream. The client replaces the first subscription request with a plurality of second requests for subscription to a plurality of multicast subgroups able to supply data sub-streams which, once combined, allow to reconstruct the data stream. Each second subscription request is transmitted over a network interface with which the request was associated, so as to favour use of each available network interface. The client receives, over each network interface, a data sub-stream corresponding to the second subscription request transmitted over said network interface and reconstructs the data stream from the data sub-streams.

Abstract: The invention relates to managing requests for subscription to multicast transmissions in a communication network, at least two branches thereof being interconnected by an interconnection device comprising a module consuming such subscription requests preventing the propagation of said requests from one branch to another. At least one of said branches comprising at least one bridge device, the interconnection device comprising a subscription announcement module, said subscription announcement module performs the following step: upon reception (404; 412) via a branch of a first request for subscription to a multicast transmission, transmitting (407; 415) a second request for subscription to said multicast transmission at least via the branch via which said first subscription request was received.

Abstract: The present invention relates to the field of methods of communication between software modules and more particularly software buses. There is described a software bus which allows communication between software modules. This communication occurs within a machine and between machines and operates interchangeably for the software module whether one is dealing with a process, a thread or a simple task. The communication relies on mechanisms adapted to the multitask level at which the sender and receiver software modules operate. It is based on a hierarchical architecture, phases of discovery and of recording of the various software modules having to communicate via the bus.

Abstract: The present invention relates to the field of methods of communication between software modules and more particularly software buses. There is described a software bus which allows communication between software modules. This communication occurs within a machine and between machines and operates interchangeably for the software module whether one is dealing with a process, a thread or a simple task. The communication relies on mechanisms adapted to the multitask level at which the sender and receiver software modules operate. It is based on a hierarchical architecture, phases of discovery and of recording of the various software modules having to communicate via the bus.