PACKET COMMUNICATION SYSTEM AND PACKET COMMUNICATION METHOD, AND NODE AND USER DEVICE
First Claim
1. A packet communication system, comprising:
- a user device;
a node that is capable of receiving packet data sent by the user device;
a plurality of content servers for which a communication path is configurable from the node;
a plurality of address resolution servers that are communicatively connected to the node, and resolve addresses used for accessing the content servers based on a source of received packet data;
a transfer device that transfers, to a first address resolution server, first packet data sent by the user device for accessing a first content server;
a transmission device that generates second packet data including the node as a sender of the first packet data, and sends the second packet data to a second address resolution server;
a comparison device that compares first and second address resolution results sent back from the first and second address resolution servers for the first and second packet data; and
a communication path configuration device that, when the first and second address resolution results do not match, allocates the second address resolution result to the user device, and configures a communication path between the UE and a second content server indicated by the second address resolution result.
1 Assignment
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Accused Products
Abstract
A node compares an address resolution result corresponding to first packet data that is sent by the user device for accessing a first content server and an address resolution result corresponding to second packet data having the sender of the first packet data as the local node. When the addresses are different, the node allocates the second address resolution result to the user device, and configures a communication path between the user device and a second content server indicated by the second address resolution result. The user device accesses to the second content server on the communication path using the allocated second address resolution result.
264 Citations
18 Claims
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1. A packet communication system, comprising:
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a user device; a node that is capable of receiving packet data sent by the user device; a plurality of content servers for which a communication path is configurable from the node; a plurality of address resolution servers that are communicatively connected to the node, and resolve addresses used for accessing the content servers based on a source of received packet data; a transfer device that transfers, to a first address resolution server, first packet data sent by the user device for accessing a first content server; a transmission device that generates second packet data including the node as a sender of the first packet data, and sends the second packet data to a second address resolution server; a comparison device that compares first and second address resolution results sent back from the first and second address resolution servers for the first and second packet data; and a communication path configuration device that, when the first and second address resolution results do not match, allocates the second address resolution result to the user device, and configures a communication path between the UE and a second content server indicated by the second address resolution result.
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2. A packet communication method in a packet communication system, comprising a user device, a node that is capable of receiving packet data sent by the user device, a plurality of content servers for which a communication path is configurable from the node, and a plurality of address resolution servers that are communicatively connected to the node and that resolve addresses used for accessing the content servers based on a source of received packet data, the method comprising:
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the node transferring, to a first address resolution server, first packet data sent by the user device for accessing a first content server, and generating second packet data including the node as a sender of the first packet data, and sending the second packet data to a second address resolution server; the node comparing first and second address resolution results sent back from the first and second address resolution servers for the first and second packet data; and the node allocating, when the first and second address resolution results do not match, the second address resolution result to the user device, and configuring a communication path between the UE and a second content server indicated by the second address resolution result, the user device accessing to the second content server on the communication path using the allocated second address resolution result. - View Dependent Claims (3, 4, 5, 6, 7, 8)
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9. A node in a packet communication system, comprising a user device, a node that is capable of receiving packet data sent by the user device, a plurality of content servers for which a communication path is configurable from the node, and a plurality of address resolution servers that are communicatively connected to the node and that resolve addresses used for accessing the content servers based on a source of received packet data, the node comprising:
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a reception device that receives first packet data sent by the user device for accessing a first content server; a generation device that generates second packet data including the node as a sender of the first packet data; a transmission device that sends the first packet data to a first address resolution server, and sends the second packet data to a second address resolution server; a comparison device that compares first and second address resolution results sent back from the first and second address resolution servers for the first and second packet data; and a communication path configuration device that, when the first and second address resolution results do not match, allocates the second address resolution result to the user device, and configures a communication path between the UE and a second content server indicated by the second address resolution result. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A user device in a packet communication system, comprising a user device, a node that is capable of receiving packet data sent by the user device, a plurality of content servers for which a communication path is configurable from the node, and a plurality of address resolution servers that are communicatively connected to the node and that resolve addresses used for accessing the content servers based on a source of received packet data, the user device comprising:
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a transmission device that sends first packet data for accessing to a first content server; a reception device that, when a node in the packet communication system, receiving the first packet data, sends the first packet data to a first address resolution server, and generates second packet data including the node as a sender of the first packet data and sends the second packet data to a second address resolution server, receives a second address resolution result that is sent from the node, when first and second address resolution result sent back to the node from the first and second address resolution servers do not match; and a communication control device that accesses to the second content server on a communication path configured by the node with a second content server indicated by the second address resolution result using the second address resolution result. - View Dependent Claims (16, 17, 18)
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Specification