Patent Number: 6,167,051

Title: Network node and method of packet transfer

Abstract: A mechanism for performing multicast packet transfer when a certain one of the destination nodes participating in the multicast communication requires resource reservation for a certain packet flow specified among the packet flows to that destination node. A system may transfer multicast packets using a plurality of virtual connections based on which flow the packets to be transferred belong to, so that each node receives the packets without duplication. Alternatively, a system may selectively discard received packets to avoid processing duplicated packets, although duplicated packets are received at each node.

Inventors: Nagami; Kenichi (Chiba-ken, JP), Tanaka; Hisako (Tokyo, JP), Katsube; Yasuhiro (Kanagawa-ken, JP)

Assignee: Kabushiki Kaisha Toshiba

International Classification: H04L 12/18 (20060101); H04Q 11/04 (20060101); H04L 12/56 (20060101); H04L 012/28 ()

Expiration Date: 12/26/2013