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AssigneeNEC Corporation
InventorsMasahiro Sakauchi, Daisaku Ogasahara, Kazuo Takagi
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A packet ring network system is disclosed which enables plurality of packet rings to perform packet transfer via a plurality of links while preventing multiple reception of packets and broadcast stream in a normal state where no failure has occurred. The packet ring network system includes a first packet ring and a second packet ring, each packet ring having a plurality of inter-ring connecting nodes, and each of the plurality of inter-ring connecting nodes in the first packet ring is connected with each of the plurality of inter-ring connecting nodes in the second packet ring in a one to one relationship so that the packet rings are connected with each other. When one of the inter-ring connecting nodes receives a packet to be broadcasted via a link connecting the first and second packet rings the node performs bidirectional flooding of the broadcast packet such that the packet arrives at a predetermined cleave point, and the node uses the source address of the other node so as to falsify the source.
A packet ring network system comprising a first packet ring and a second packet ring in which the second packet ring includes a plurality of inter-ring connecting nodes and the first packet ring includes a plurality of inter-ring connecting nodes and each of the plurality of inter-ring connecting nodes of the second packet ring is connected with a corresponding node of the plurality of inter-ring connecting nodes of the first packet ring, one node of the inter-ring connecting nodes provided in the second packet ring comprising:
A packet ring network system comprising a first packet ring and a second packet ring in which the second packet ring includes a plurality of inter-ring connecting nodes and the first packet ring includes a plurality of inter-ring connecting nodes and each of the plurality of inter-ring connecting nodes of the second packet ring is connected with a corresponding node of the plurality of inter-ring connecting nodes of the first packet ring, one node of the inter-ring connecting nodes provided in the second packet ring comprising:
A packet ring network system comprising a first packet ring and a second packet ring in which the second packet ring includes a plurality of inter-ring connecting nodes and the first packet ring includes a plurality of inter-ring connecting nodes and each of the plurality of inter-ring connecting nodes of the second packet ring is connected with a corresponding node of the plurality of inter-ring connecting nodes of the first packet ring, one node of the inter-ring connecting nodes provided in the second packet ring comprising:
A packet ring network system comprising a first packet ring and a second packet ring in which the second packet ring includes a plurality of inter-ring connecting nodes and the first packet ring includes a plurality of inter-ring connecting nodes and each of the plurality of inter-ring connecting nodes of the second packet ring is connected with a corresponding node of the plurality of inter-ring connecting nodes of the first packet ring, one node of the inter-ring connecting nodes provided in the second packet ring comprising:
A packet transfer method applied to a packet ring network system comprising a first packet ring and a second packet ring in which the second packet ring includes a plurality of inter-ring connecting nodes and the first packet ring includes a plurality of inter-ring connecting nodes and each of the plurality of inter-ring connecting nodes of the second packet ring is connected with a corresponding node of the plurality of inter-ring connecting nodes of the first packet ring, the method being performed by one node of the inter-ring connecting nodes provided in the second packet ring and comprising:
A packet transfer method applied to a packet ring network system comprising a first packet ring and a second packet ring in which the second packet ring includes a plurality of inter-ring connecting nodes and the first packet ring includes a plurality of inter-ring connecting nodes and each of the plurality of inter-ring connecting nodes of the second packet ring is connected with a corresponding node of the plurality of inter-ring connecting nodes of the first packet ring, the method being performed by one node of the inter-ring connecting nodes provided in the second packet ring and comprising:
An inter-ring connecting node applied to a packet ring network system comprising a first packet ring and a second packet ring in which the second packet ring includes a plurality of inter-ring connecting nodes and the first packet ring includes a plurality of inter-ring connecting nodes and each of the plurality of inter-ring connecting nodes of the second packet ring is connected with a corresponding node of the plurality of inter-ring connecting nodes of the first packet ring, the node being one node of the plurality of inter-ring connecting nodes of the second packet ring and comprising:
An inter-ring connecting node applied to a packet ring network system comprising a first packet ring and a second packet ring in which the second packet ring includes a plurality of inter-ring connecting nodes and the first packet ring includes a plurality of inter-ring connecting nodes and each of the plurality of inter-ring connecting nodes of the second packet ring is connected with a corresponding node of the plurality of inter-ring connecting nodes of the first packet ring, the node being one node of the plurality of inter-ring connecting nodes of the second packet ring and comprising:
An inter-ring connecting node applied to a packet ring network system comprising a first packet ring and a second packet ring in which the second packet ring includes a plurality of inter-ring connecting nodes and the first packet ring includes a plurality of inter-ring connecting nodes and each of the plurality of inter-ring connecting nodes of the second packet ring is connected with a corresponding node of the plurality of inter-ring connecting nodes of the first packet ring, the node being one node of the plurality of inter-ring connecting nodes of the second packet ring and comprising:
An inter-ring connecting node applied to a packet ring network system comprising a first packet ring and a second packet ring in which the second packet ring includes a plurality of inter-ring connecting nodes and the first packet ring includes a plurality of inter-ring connecting nodes and each of the plurality of inter-ring connecting nodes of the second packet ring is connected with a corresponding node of the plurality of inter-ring connecting nodes of the first packet ring, the node being one node of the plurality of inter-ring connecting nodes of the second packet ring and comprising:
Dependencies are inferred from the claim text.