Multicast shortcut routing method

Details Multicast shortcut routing method Multicast shortcut routing method

H - Electricity

04

L

H04L 12/56 (2006.01) H04L 12/18 (2006.01) H04Q 11/04 (2006.01)

Patent

CA 2292981

A shortcut routing method is used in an Internet Protocol network over a network. This network, including a plurality of switch-routers and optionally a plurality of routers interconnected by links, is adapted to carry a point-to- multipoint connection between a sending host and a plurality of potential receiving hosts. Each of these receiving hosts is coupled to one of the plurality of routers and/or switch-routers. A first data-packet of an Internet Protocol packet-flow is broadcasted from the sending host towards all potential receiving hosts and wherein each potential receiving host of these potential receiving hosts may send, upon reception of said first data-packet, a prune-message in direction of said sending host to notify that this potential receiving host does not wish to receive this Internet Protocol packet-flow. This method further includes the step of delaying the set-up of the shortcut path over a predetermined time-interval, which is dependent on the period of time the prune-message needs to reach the plurality of routers and/or switch-routers in the direction of the sending host, which step is followed by the actual setting up of the shortcut path between the sending host and the receiving hosts, those are the potential hosts which didn't send a prune

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