Method and apparatus for peer-to-peer services for efficient transfer of information between networks

• US 7,562,112 B2
• Filed: 03/08/2002
• Issued: 07/14/2009
• Est. Priority Date: 07/06/2001
• Status: Expired due to Term

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Daly, Frank X, Harrow, Ivan P., Curley, Martin G., Fleming, David O., Honan, Dermot E.
• Primary Examiner(s): LAZARO, DAVID R
• Assistant Examiner(s): LAZARO, DAVID R
• Application Number:
  US10/095,323
• Publication Number:
  US 20030009518A1
• Time in Patent Office: 2,685 Days
• Field of Search: 709/203, 709/217, 709/219, 709/227, 709/238, 709/246, 713/153, 713/201, 715/738
• US Class Current: 709/203
• CPC Class Codes: H04L 47/10 Flow control; Congestion control
• CPC Class Codes: H04L 67/104 Peer-to-peer [P2P] networks
• CPC Class Codes: H04L 67/1063 Discovery through centralising entities
• CPC Class Codes: H04L 67/1095 Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]

Abstract

A method and apparatus for peer-to-peer services have been described. In one embodiment, a request for data is received from a first local device. A determination of a second local device having the data is made. The first local device is directed to the second local device to directly obtain the data from the second local device. A direct transfer of the data from the second local device to the first local device is performed.

Claims

1. A method comprising:

maintaining a directory at a server, the directory having a list of a plurality of devices, the directory further having a prioritized list of the plurality of devices having files;

receiving a request at the server from a first device for a file, the first device of the plurality of device, the first device including a client coupled with the server;

seeking a second device having the requested file by referencing the prioritized list of the plurality of devices, the second device being closest in proximity to the first device, the requested file having a first version, wherein the seeking of the second device is performed by the server;

communicating a location of the second device to the first device via the server;

directing the first device to directly obtain the requested file from the second device, wherein the directing of the first device is performed by the server;

transferring the requested file from the second device to the first device via the server; and

updating the requested file from the first version to a second version via the server, wherein the second version being newer than the first version and residing at a third device of the plurality of devices, the server redirecting the first device to directly obtain the second version of the requested file from the third device, and transferring the second version of the requested file from the third device to the first device via the server.

2. The method of claim 1, further comprising communicating to the first device that the second device possesses the requested file.

3. The method of claim 1, further comprising maintaining a list indicating the second device having the file.

4. The method of claim 3, further comprising updating the list to indicate the first device having the file once the requested file is transferred from the second device to the first device and/or the second version of the requested file is transferred from the third device to the first device.

5. The method of claim 1, wherein the server and the plurality of the devices including the first device and the second device are coupled via a network including a wide area network (WAN), a local area network (LAN), an Intranet, and the Internet.

6. A system comprising:

a server coupled with a plurality of devices, the plurality of devices having a first device and a second device over a network, the server to

maintain a directory at a server, the directory having a list of a plurality of devices, the directory further having a prioritized list of the plurality of devices having files,

receive a request from the first device for a file, the first device including a client,

seek a second device having the requested file by referencing the prioritized list of the plurality of devices, the second device being closest in proximity to the first device, the requested file having a first version,

communicate a location of the second device to the first device,

direct the first device to directly obtain the requested file from the second device,

transfer the requested file from the second device to the first device, and

update the requested file from The first version to a second version, wherein the second version being newer than the first version and residing at a third device of the plurality of devices, and redirect the first device to directly obtain the second version of the requested file having the second version from the third device, and transfer the second version of the requested file from the third device to the first device via the server.

7. The system of claim 6, wherein the server is further to communicate to the first device that the second device possesses the requested data.

8. The system of claim 6, wherein the server is further to maintain a list indicating the second device having the file.

9. The system of claim 8, wherein the server is farther to update the list to indicate the first device having the file once the requested file is transferred from the second device to the first device and/or the second version of the requested file is transferred from the third device to the first device.

10. The system of claim 6, wherein the network comprises a wide area network (WAN), a local area network (LAN), an Intranet, and the Internet.

11. A machine-readable storage medium comprising instructions which, when executed, cause a machine to:

maintain a directory at a server, the directory having a list of a plurality of devices, the directory further having a prioritized list of the plurality of devices having files;

receive a request from a first device for a file, the first device of the plurality of devices, the first device including a client coupled with the server;

seek a second device having the requested file by referencing the prioritized list of the plurality of devices, the second device being closest in proximity to the first device, the requested file having a first version;

communicate a location of the second device to the first device;

direct the first device to directly obtain the requested file from the second device;

transfer the requested file from the second device to the first device; and

update the requested file from the first version to a second version, wherein the second version being newer than the first version and residing at a third device of the plurality of devices, and redirect the first device to directly obtain the second version of the requested file having the second version from the third device, and transfer the second version of the requested file from the third device to the first device via the server.

12. The machine-readable storage medium of claim 11, wherein the instructions which, when executed, further cause the machine to communicate to the first device that the second device possesses the requested file.

13. The machine-readable storage medium of claim 11, wherein the instructions which, when executed, further cause the machine to maintain a list indicating the second device having the file.

14. The machine-readable storage medium of claim 13, wherein the instructions which, when executed, further cause the machine to update the list to indicate the first device having the file once the requested file is transferred from the second device to the first device and/or the second version of the requested file is transferred from the third device to the first device.

15. The machine-readable storage medium of claim 11, wherein the sewer and the plurality of devices including the first device, and the second device are coupled via a network, the network including a wide area network (WAN), a local area network (LAN), an intranet, and the Internet.