Method and system for accessing network services

• US 7,822,839 B1
• Filed: 06/21/2007
• Issued: 10/26/2010
• Est. Priority Date: 05/06/2003
• Status: Expired due to Fees

• Current Assignee: F5 Networks, Inc. (F5 Incorporated)
• Original Assignee: F5 Networks, Inc. (F5 Incorporated)
• Inventors: Skene, Bryan D., Mager, Gary N., Jenny, Patrick D., Pruitt, Joseph A.
• Primary Examiner(s): Jacobs; Lashonda T
• Application Number:
  US11/812,696
• Time in Patent Office: 1,223 Days
• Field of Search: 709/203, 709/217, 709/219, 709/223, 709/224, 709/229, 718/104, 718/105
• US Class Current: 709/223
• CPC Class Codes: H04L 61/4511 using domain name system [DNS]
• CPC Class Codes: H04L 61/4541 Directories for service discovery
• CPC Class Codes: H04L 67/51 Discovery or management thereof, e.g. service location protocol [SLP] or web services

Abstract

A method and system for accessing network services. A client sends a request for a service. The request includes an address of the client. One or more resolvers receive the request for a service. The one or more resolvers determine at least one service location to return to the client based at least partially on the service requested and the address of the client. The at least one service location is then returned to the client. The service locations returned to the client may also be based on a policy, user preferences, client preferences, or client characteristics.

Claims

1. A method for accessing a service, comprising:

receiving over a network, from a client a request for at least one service location that provides access to the service, wherein the request includes a network address of the client and information that identifies one or more client preferences stored on a network device that provides the at least one service location to the client;

determining, by a resolver, the at least one service location to return to the client based at least partially on the network address and at least one client characteristic including data describing hardware of the client, data describing software of the client and network configuration of the client; and

returning the at least one service location to the client.

2. The method of claim 1, wherein determining the at least one service location is also based on a health of the at least one service location.

3. The method of claim 2, wherein the health is collected by a network device that polls devices through which the service is accessible to determine the health of each service location.

4. The method of claim 1, wherein the request and the at least one service location that is returned are transported in a synchronous messaging system.

5. The method of claim 1, wherein the request and the at least one service location that is returned are transported in an asynchronous messaging system.

6. The method of claim 1, further comprising determining a geographical location of the client based on the address, wherein determining the at least one service location is also based on the geographical location of the client.

7. The method of claim 1, wherein determining the at least one service location is also based on at least one of a plurality of policies associated with the client.

8. The method of claim 7, wherein the plurality of policies include a set of rules associated with at least one of a cost of a service at a service location, a quality of a service at a service location, a speed of a service at a service location, a latency of a service at a service location, a bandwidth available for a service at a service location, traffic currently handled by a service at a service location, and a port number.

9. The method of claim 1, wherein the request also includes client preferences and wherein determining the at least one service location is also based on the client preferences.

10. The method of claim 9, wherein the client preferences include attributes of the service.

11. The method of claim 10, wherein the attributes of the service include at least one of a cost, quality, and freshness of data of the service.

12. The method of claim 11, wherein the client preferences include a plurality of weightings, each weighting associated with an attribute of the service.

13. The method of claim 1, wherein the request is a universal description, discovery, and integration (UDDI) request.

14. The method of claim 1, further comprising determining a priority associated with the address.

15. The method of claim 1, wherein the service location includes at least one of a network address, a path name, a port number, a network protocol, and an email address.

16. The method of claim 15, further comprising performing a domain name service (DNS) lookup to obtain an internet protocol (IP) address of each service location before the at least one service location is returned to the client.

17. The method of claim 15, wherein the network address is an internet protocol (IP) address.

18. The method of claim 1, wherein the client employs the at least one service location returned to access the service.

19. The method of claim 1, further comprising returning a score with each service location returned to the client.

20. The method of claim 19, wherein the score is a vector value that includes two or more criteria and a value associated with each criteria.

41. The method of claim 1, wherein the at least one client characteristic includes at least one of information about the client'"'"'s operating system, the client'"'"'s brand name, the client'"'"'s language of operation, the client'"'"'s processor, the client'"'"'s compression capabilities, the client'"'"'s bandwidth capabilities, the client'"'"'s user details, the client'"'"'s organization details, and the client'"'"'s ownership.

21. A method for accessing a service, comprising:

receiving over a network, from a client, a request for at least one service location that provides access to the service, wherein the request includes a network address of the client and information that identifies one or more client preferences stored on a network device that provides the at least one service location to the client;

determining, by a resolver, the at least one service location to return to the client based at least partially on the network address, at least one client preference out of the one or more client preferences, and at least one client characteristic including data describing hardware of the client, data describing software of the client and network configuration of the client; and

returning the at least one service location to the client.

22. The method of claim 21, wherein each client preference includes at least one of an attribute of the service and a delivery of the service.

23. The method of claim 21, wherein the at least one client preference includes at least one of a cost, quality, and freshness of data of the service.

24. The method of claim 21, wherein the client preference is specified by at least one of the client, an application executing on the client, and a user utilizing the client.

25. The method of claim 21, further comprising accumulating client data and determining the at least one service location based on the client data.

26. The method of claim 21, further comprising accumulating health data based on a health of the service executing at a service location and determining the at least one service location based on the health data.

27. The method of claim 21, further comprising accumulating a policy that applies to the client and determining the at least one service based on the policy.

28. The method of claim 27, wherein the policy relates to at least one of a cost, capacity, response time, bandwidth, quality, speed, and response time of the service.

29. The method of claim 21, further comprising returning a score with each service location returned to the client.

30. The method of claim 29, wherein the score indicates a desirability of a service location, the score being based on a weighting factor corresponding to a criteria and a value representing data for the criteria.

31. The method of claim 29, wherein the score is a vector value that includes two or more criteria and a value associated with each criteria.

32. The method of claim 31, further comprising selecting a service location based at least partially on the value associated with each criteria.

33. An apparatus for mapping a request to a service, comprising:

an interface arranged to receive requests from a plurality of clients over a network, each request sent from one of the plurality of clients, each request including a network address associated with the client that sent the request and information that identifies one or more client preferences stored on a network device that provides the at least one service location to the client; and

a resolver coupled to the interface, wherein the resolver is arranged to perform actions including determining a set of one or more service locations to return to a requesting client based at least in part on the service and the network address associated with the requesting client and at least one client characteristic including data describing hardware of the client, data describing software of the client and network configuration of the client.

34. The apparatus of claim 33, wherein the resolver and the interface are integrated on a single server.

35. The apparatus of claim 33, wherein the set of one or more service locations returned is based at least partially on a client preference out of the one or more client preferences.

36. The apparatus of claim 33, wherein the set of one or more service locations returned is based at least partially on a plurality of policies.

37. The apparatus of claim 33, wherein the resolver is further arranged to return a score associated with each returned service location.

38. The apparatus of claim 37, wherein each score is a vector value that includes two or more criteria and a value associated with each criteria.

39. An apparatus for resolving service requests, comprising:

an interface arranged to receive requests from a plurality of clients, each request sent from one of the plurality of clients over a network, each request including a network address associated with the client that sent the request and information that identifies one or more client preferences stored on a network device that provides the at least one service location to the client;

means for resolving each request to at least one service location based at least in part on the service and the requesting client and at least one client characteristic including data describing hardware of the client, data describing software of the client and network configuration of the client.

40. The apparatus of claim 39, wherein the means for resolving each request to at least one service location is also based on the one or more client preferences.