Multi-route client-server architecture

• US 6,633,901 B1
• Filed: 10/22/1999
• Issued: 10/14/2003
• Est. Priority Date: 10/23/1998
• Status: Expired due to Term

• Current Assignee: Reigntek IP LLC (IP Edge LLC)
• Original Assignee: PSS Systems, Inc. (International Business Machines Corporation)
• Inventors: Zuili, Patrick
• Primary Examiner(s): Sheikh, Ayaz
• Assistant Examiner(s): NGUYEN, THU HA T
• Application Number:
  US09/425,382
• Time in Patent Office: 1,453 Days
• Field of Search: 709/202, 709/203, 709/238, 709/213, 709/229, 709/219, 709/226, 709/232, 709/230, 709/231, 713/201, 707/10, 707/1, 707/202, 711/144, 711/165, 711/156, 714/27
• US Class Current: 709/203
• CPC Class Codes: H04L 67/04 specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
• 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 67/1072 Discovery involving ranked list compilation of candidate peers
• CPC Class Codes: H04L 67/1091 Interfacing with client-server systems or between P2P systems
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]

Abstract

A “flat” network architecture facilitates direct connections between nodes so that information may be retrieved more efficiently. Agent software is loaded on each participating node, and this code is sufficiently intelligent to share and relay information appropriately in accordance with user requests. The invention is particularly advantageous in situations where communication bottlenecks are likely to occur, such as between corporate intranets and the Internet, in conjunction with requests to international servers, and in other configurations wherein only a limited number of data pipelines are available. A method of accessing information in a client-server network architecture according to the invention includes the step of maintaining a database on the server which keeps track of where desired information is stored on the network. When such information is requested from the server, the database is queried to determine whether the information is available from one or more participating clients. If, so, the information is provided to the requestor directly through the client(s). According to the invention, this redirection of information is accomplished by storing agent software on each participating client. The agent is operative to inform the server that the client is storing at least a portion of the requested information, such that when the server queries the clients to determine the location of the information, the agents let the server know how much of the requested information they can make available to the requestor. Following this, the information is either provided to the requestor by the server instructing the client to deliver the information directly to the requestor the address of the client is downloaded to the requester, enabling the requestor to link to one or more clients if the information is fragmented across the net.

Claims

1. A method of accessing information on a network, comprising:

designating a device on the network as a server, and a plurality of other devices as clients;

associating a database with the server to identify where desired information is stored on one or more of the other clients when a request is received from a requestor for the desired information; and

if the database indicates that the information is available from one or more of the clients, providing the desired information to the requestor directly through the one or more of the clients such that the requestor is given a fastest possible access to the desired information while using minimum bandwidth of the network; and

wherein, when only fragments of the information are available from one or more of the clients, the one or more of the clients are negotiated to rebuild the information such that the requestor can receive the information completely from the one or more of the clients.

2. The method as recited in claim 1, wherein the request pertains to a network address to the desired information, and the method further comprising providing the requestor with link information to the one or more of the clients so that the desired information is to be obtained from the one or more of the clients rather than from the network address.

3. The method as recited in claim 2, wherein the desired information or segmented pieces of the desired information are cached in the one or more of the clients.

4. The method as recited in claim 3, wherein the server is notified of the one or more of the clients caching the desired information of the segmented pieces of the desired information.

5. The method as recited in claim 1, wherein the link information pertains an address or addresses of the one or more of the clients that can provide the desired information alone or collectively.

6. The method as recited in claim 1, wherein the desired information is delivered to the requestor by one of a file transfer protocol or an Internet protocol (IP).

7. The method as recited in claim 1, wherein the requester is one of a computing device, a voice communicator, or a personal digital assistant.

8. The method as recited in claim 7, wherein the one or more of the clients is one of a computing device, a voice communicator, or a personal digital assistant.

9. A computer readable medium including at least computer program code for accessing information on a network, the computer readable medium comprising:

program code for designating a device on a network as a server, and a plurality of other devices as clients;

program code for associating a database with the server to identify where desired information is stored on one or more of the other clients when a request is received from a requestor for the desired information; and

if the database indicates that the information is available from one or more of the clients, program code for providing the desired information to the requestor directly through the one or more of the clients such that the requester is given a fastest possible access to the desired information while using minimum bandwidth of the network; and

wherein, when only fragments of the information are available from one or more of the clients, program code for negotiating with one or more of the clients to rebuild the information such that the requester can receive the information completely from the one or more of the clients.

10. The method as recited in claim 9, wherein the request pertains to a network address to the desired information, and the method further comprising program code for providing the requestor with link information to the one or more of the clients so that the desired information is to be obtained from the one or more of the clients rather than from the network address.

11. The method as recited in claim 10, wherein the desired information or segmented pieces of the desired information are cached in the one or more of the clients.

12. The method as recited in claim 11, wherein the server is notified of the one or more of the clients caching the desired information of the segmented pieces of the desired information.

13. The method as recited in claim 10, wherein the link information pertains an address or addresses of the one or more of the clients that can provide the desired information alone or collectively.

14. The method as recited in claim 10, wherein the desired information is delivered to the requestor by one of a file transfer protocol or an Internet protocol (IP).

15. The method as recited in claim 10, wherein the requestor is one of a computing device, a voice communicator, or a personal digital assistant.

16. The method as recited in claim 15, wherein the one or more of the clients is one of a computing device, a voice communicator, or a personal digital assistant.