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AssigneeAlcatel
InventorRichard Couty
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The invention concerns the transmission of data packets in multicast mode, in which method the packets are sent from a sending end of a physical transmission medium and received by terminals at a receiving end of said medium. It finds a typical application in networks whose terminals cannot listen to each other, which is the case in satellite networks, for example, whereas management implies sending a query message to the terminals in order to determine the presence of an active group of terminals as a function of the reception of a response message from a terminal of said group. A signal is then sent to the terminals from the sending end, preferably the returned response, to indicate reception of a response message from a terminal of the group of terminals, so that terminals that have not sent a response message can act accordingly, in particular by interrupting their own process for sending a response. The method can be integrated transparently into the IGMP and the RFC 1112 standard that governs multicast transmission of data packets. A system for implementing the management method is also provided, and possibly integrated into a router.
A method of managing the multicast mode communication of data packets wherein the data packets are sent from a sending end of a physical transmission medium and received by terminals at a receiving end of said physical transmission medium, wherein mutual listening between the terminals is not supported, and wherein a query message is sent to the terminals in order to determine the presence of an active group of terminals as a function of the reception of a response message from a terminal of said active group of terminals, the method comprising:
A system for managing the multicast mode communication of data packets, wherein the data packets are sent from a sending end of a physical transmission medium and received by terminals at a receiving end of said physical transmission medium, wherein mutual listening between the terminals is not supported, and wherein a query message is sent to the terminals in order to determine the presence of an active group of terminals as a function of the reception of a response message from a terminal of said active group of terminals, the system comprising:
A router configured to manage the multicast mode communication of data packets wherein the data packets are sent from a sending end of a physical transmission medium and received by terminals at a receiving end of said physical transmission medium, wherein mutual listening between the terminals is not supported, and wherein a query message is sent to the terminals in order to determine the presence of an active group of terminals as a function of the reception of a response message from a terminal of said active group of terminals, the router comprising:
A method of managing the multicasting of data packets from a sending end of a physical transmission medium to terminals at a receiving end of the physical transmission medium, wherein the physical transmission medium does not support mutual listening between the terminals, the method comprising:
A system for managing the multicasting of data packets, the system comprising:
Dependencies are inferred from the claim text.