Web serving system that coordinates multiple servers to optimize file transfers

• US 5,991,809 A
• Filed: 07/25/1997
• Issued: 11/23/1999
• Est. Priority Date: 07/25/1996
• Status: Expired due to Term

• Current Assignee: Xcelera Inc.
• Original Assignee: Clearway Technologies, LLC (Xcelera Inc.)
• Inventors: Kriegsman, Mark E.
• Primary Examiner(s): Maung, Zarni
• Application Number:
  US08/900,273
• Time in Patent Office: 851 Days
• Field of Search: 395/200.31, 395/200.47, 395/200.48, 395/200.49, 395/200.59, 395/200.61, 395/200.62, 709/201, 709/226, 709/229, 709/231, 709/232, 709/219
• US Class Current: 709/226
• CPC Class Codes: G06F 16/10 File systems; File servers
• CPC Class Codes: H04L 67/01 Protocols
• CPC Class Codes: H04L 67/1001 for accessing one among a plurality of replicated servers
• CPC Class Codes: H04L 67/10015 Access to distributed or replicated servers, e.g. using brokers
• CPC Class Codes: H04L 67/1008 based on parameters of servers, e.g. available memory or workload monitoring of computer activity G06F11/30
• CPC Class Codes: H04L 67/101 based on network conditions
• CPC Class Codes: H04L 67/1014 based on the content of a request
• CPC Class Codes: H04L 67/1021 based on client or server locations
• CPC Class Codes: H04L 67/1023 based on a hash applied to IP addresses or costs
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

The present invention is a collaborative server system for providing high speed data transmission of data files across a communications network which, in brief summary, comprises a communications network, a primary server having a primary communications component for connecting the primary server to the communications network, and at least one secondary server having a secondary communications component for connecting the secondary server to the communications network. The primary server and the at least one secondary server include storage component for storing data files. The data files include static data files and/or dynamic data files. The storage component of the primary server further stores at least one look-up table having specific criteria pertaining to the data files and the primary and at least one secondary servers. The processor component of the primary server is effective to receive a request for specific data files from a network user, to look-up specific criteria in the look-up table pertaining to the specific data files, and to allocate transmission of each specific data file between the primary server and the at least one secondary server based on the specific criteria.

Claims

1. An apparatus that is a member of a group of predetermined devices connected to a network, for receiving a request for data files from a network user and allocating transmission of the data files between said predetermined devices, said apparatus comprising:

memory means for storing a data file and a look-up table having criteria pertaining to said data file and said predetermined devices; and

data allocation means which is capable of;

(i) receiving a request for said data file from a network user,

(ii) looking up said criteria in said look-up table pertaining to said data file, and

(iii) allocating transmission of said data file between said predetermined devices based on said criteria; and

means for transmitting data to said network user,

wherein said data file is selected from a group consisting of a dynamic data file and a static data file.

2. The apparatus as recited in claim 1, wherein said data file is a dynamic data file, and wherein said data allocation means causes said transmitting means to transmit said data file to said network user.

3. The apparatus as recited in claim 1, wherein said data file is a static data file, and wherein said data allocation means selects an optimum device from said predetermined devices and causes said network user to request said data file from said optimum device.

4. The apparatus as recited in claim 3, wherein said data allocation means transmits an address code of said optimum device to said network user.

5. The apparatus as recited in claim 4, wherein said network user, responsive to receipt of said address code, requests said data file from said optimum device.

6. The apparatus as recited in claim 1, further comprising means for transferring a copy of said data file stored in said memory means to any of said predetermined devices.

7. The apparatus as recited in claim 1, further comprising means for updating said criteria in said look-up table of said memory means.

8. The apparatus as recited in claim 1, wherein said criteria includes a latency of a connection between each of said predetermined devices and said network user.

9. The apparatus as recited in claim 1, wherein said criteria includes an estimated cost of transmitting said data file from each of said predetermined devices to said network user.

10. The apparatus as recited in claim 1, wherein said criteria includes a transmission bandwidth of each of said predetermined devices.

11. The apparatus as recited in claim 1, wherein said criteria includes a current capacity of each of said predetermined devices to transmit data files to said network user.

12. The apparatus as recited in claim 1, wherein said criteria includes a version type of data files retrievable by each of said predetermined devices.

13. The apparatus as recited in claim 1, wherein said data file includes an embedded reference to an additional data file.

14. The apparatus as recited in claim 13, wherein said data allocation means is further capable of looking up criteria in said look-up table pertaining to said additional data file, and allocating transmission of said additional data file between said predetermined devices, based on said criteria pertaining to said additional data file.

15. The server system as recited in claim 13, wherein said embedded reference includes an address code for said additional data file, said allocation means having means for rewriting said address code.

16. A collaborative server system for providing high speed data transmission of data files across a network, comprising:

a primary server and a secondary server, both connected to a network across a communication medium, said primary server comprising;

(a) memory means for storing a data file and a look-up table having specific criteria pertaining to said data file and said primary server and said secondary server;

(b) data allocation means which is capable of;

(i) receiving a request for said data file from a network user,

(ii) looking up said criteria in said look-up table pertaining to said data file, and

(iii) allocating transmission of said data file between said primary server and said secondary server based on said criteria; and

(c) means for transmitting data across said network,

said secondary server comprising;

secondary memory means for storing said data file, and means for transmitting data across said network,

wherein said data file is selected from a group consisting of a dynamic data file and a static data file.

17. The server system as recited in claim 16, wherein said data file is a dynamic data file, and wherein said data allocation means causes said transmitting means of said primary server to transmit said data file to said network user.

18. The server system as recited in claim 16, wherein said data file is a static data file, and wherein said data allocation means selects an optimum server from a group including said primary server and said secondary server and causes said network user to request said data file from said optimum device.

19. The server system as recited in claim 18, wherein said data allocation means transmits an address code of said optimum device to said network user.

20. The server system as recited in claim 19, wherein said network user, responsive to receipt of said address code, requests said data file from said optimum device.

21. The server system as recited in claim 16, wherein said primary server further comprises means for transferring a copy of said data file stored in said primary memory means to said secondary memory means of said secondary server.

22. The server system recited in claim 16, wherein said primary server further comprises means for updating said criteria in said look-up table of said primary memory means.

23. The server system as recited in claim 16, wherein said criteria includes a latency of a connection between said primary server and said secondary server and said network user.

24. The server system as recited in claim 16, wherein said criteria includes an estimated cost of transmitting said data file from said primary server and said secondary server to said network user.

25. The server system as recited in claim 16, wherein said criteria includes a transmission bandwidth of said primary server and said secondary server.

26. The server system as recited in claim 16, wherein said criteria includes a current capacity of said primary server and said secondary server to transmit data files to said network user.

27. The server system as recited in claim 16, wherein said criteria includes a version type of data files retrievable by said primary server and said secondary server.

28. The server system as recited in claim 16, wherein said data file includes an embedded reference to an additional data file.

29. The server system as recited in claim 28, wherein said data allocation means is further capable of:

looking up criteria in said look-up table pertaining to said additional data file, and allocating transmission of said additional data file between said primary server and said secondary server, based on said criteria pertaining to said additional data file.

30. The server system as recited in claim 28, wherein said embedded reference includes an address code for said additional data file, said data allocation means having means for rewriting said address code.

31. The server system as recited in claim 16, wherein said primary server is connected to said network across a slower transmission medium than said secondary server.

32. The server system as recited in claim 31, wherein said primary server is connected to said network across an analog transmission line and said secondary server is connected to said network across a faster digital transmission line.

33. The server system as recited in claim 16, wherein said network user includes means for requesting and receiving said data file, via said network.

34. The server system as recited in claim 33, wherein said network user further includes means for generating a web page from said data file.

35. The server system as recited in claim 16, wherein said network user and said primary server are connected in a local area network (LAN), said LAN being connected to said network.

36. The server system as recited in claim 16, wherein said network user and said secondary server are connected to a local area network (LAN), said LAN being connected to said network.

37. An apparatus that is a member of a group of predetermined devices connected to a network, for receiving a request for data files having embedded therein references to additional data files from a network user and allocating transmission of all of the data files between said predetermined devices, said apparatus comprising:

memory means for storing a data file and an additional data file and a look-up table having criteria pertaining to said data file and said additional data file and said predetermined devices, said data file having an embedded reference to said additional data file; and

data allocation means which is capable of;

(i) receiving a request for said data file from a network user,

(ii) looking up criteria in said look-up table pertaining to said data file and said additional data file, and

(iii) allocating transmission of said data file and said additional data file between said predetermined devices based on said criteria; and

means for transmitting data to said network user,

wherein said data file and said additional data file are selected from a group consisting of a dynamic data file and a static data file.

38. The apparatus as recited in claim 37, wherein said embedded reference includes an address code for said additional data file, said data allocation means having means for rewriting said address code.