Abstract: A method for managing frames in a global-area communications network comprises a plurality of sub-networks linked to one another by tunnels at the ends of which there are tunnel endpoints, at least one of the sub-networks comprising at least one source device connected to one of said tunnel endpoints through said sub-network. When a given tunnel endpoint receives from a local sub-network, to which said given tunnel endpoint is connected, a frame sent out by a source device in the global-area network, the given tunnel endpoint performs the following steps: obtaining, from said frame, an address of the source device; verifying that the obtained address is included in a first list of addresses comprising addresses associated with source devices connected to remote sub-network or sub-networks distinct from the local sub-network; and in the event of positive verification, discarding said frame.

Abstract: A method for insertion of information for control of broadcasting of a data stream in a heterogeneous network, the network including an entry sub-network conveying first packets and a basic network conveying second packets. The sub-network is connected to the basic network by an entry node forming the second packets. The node receives first packets from the sub-network, associates an access level with each first packet from a plurality of access levels, as a function of a predetermined policy of association, forms each second packet by enclosing at least a first packet or part thereof into the second packet, the enclosed first packets or part thereof being associated with a same access level, for each second packet, inserts, into a field of the second packet representing the broadcast control information, the same access level, and transmits the formed second packets into the basic network.

Abstract: According to the method for balancing a latency of transmission of at least one data content in a communications tree defined in a synchronous communications network, the communications tree comprising a root node to which there is connected a junction terminal which is a convergence terminal in the context of a capture application or divergence terminal in the context of a broadcast application, the communications tree furthermore comprising the leaf nodes to which there are connected capture terminals, for capturing or broadcast terminals, for broadcasting, the root node and the leaf nodes being interconnected by intermediate nodes, the nodes being interconnected by links, steps are performed for: determining, for each node of the communications tree, a maximum value of latency associated with each path going from the node up to leaf nodes in a direction opposite to the junction terminal, and applying to each link at a node, the link running from the node in the direction opposite to the junction termina

Abstract: A method is proposed for setting up a communications path between a first communications sub-network and a second communications sub-network by means of an intermediate communications sub-network in an extended communications network. More specifically, to set up the communications path, said intermediate sub-network comprises at least two tunnel end-points and an input tunnel end-point of said intermediate sub-network which performs the following steps of: receiving, from a tunnel of said input tunnel end-point, a relay activation message to set up said path, said message referring to a local relay involving said input tunnel end-point; determining, from said relay activation message, an output tunnel end-point of said intermediate sub-network involved in the local relay; activating the local relay for a part of said path between said first sub-network and said second sub-network transmitting the relay activation message to said output tunnel end-point.

Abstract: A method for the management of the recording of an audio/video stream within a communications network comprises a step for setting up a first recording connection between a source device and a recording device connected to said communications network. The step for setting up the first recording connection is followed by a step for setting up a second viewing connection between the recording device and a display device also connected to the network, so that a user can observe an audio/video image corresponding to the audio/video stream, on said display device, while the stream is being recorded by the recording device.

Abstract: A method for the distribution of an audiovisual signal, in a communications network interconnecting a plurality of terminals, from a source terminal to one or more destination terminals comprises: a step for the detection of an initializing signal; a step for the transmission of the audiovisual signal to a first group of terminals; a step for the sending of indication messages on the transmission of the audio signal to a second group of terminals; a step for the reception of confirmation messages used to determine the terminals of the second group for which the transmission of the audiovisual signal must be maintained; a step to stop the transmission of the audiovisual signals to the terminals of the second group for which the transmission of this signal must not be maintained.

Abstract: In a method for the insertion of information for the control of the broadcasting of a data stream in a heterogeneous network, the heterogeneous network includes at least one entry sub-network conveying first packets and a basic network conveying second packets. The entry sub-network is connected to the basic network by means of an entry node forming the second packets from at least one sub-part of at least one first packet.