Method and system for multiple network names of a single server

• US 6,442,685 B1
• Filed: 03/31/1999
• Issued: 08/27/2002
• Est. Priority Date: 03/31/1999
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: French, Steven Michael, Dobbelstein, Steven Lawrence
• Primary Examiner(s): Lee, Thomas
• Assistant Examiner(s): Cao, Chun
• Application Number:
  US09/282,617
• Time in Patent Office: 1,245 Days
• Field of Search: 714/4, 714/13, 709/239, 709/245, 709/227, 713/1, 713/100
• US Class Current: 713/100
• CPC Class Codes: H04L 67/1001 for accessing one among a plurality of replicated servers
• CPC Class Codes: H04L 69/40 for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection management of faults, events, alarms or notifications in data switching networks H04L41/06

Abstract

A method and system for identifying a server in a distributed data processing system is provided. A primary server name and a secondary server name for the server are registered. The server is able to respond to requests directed to either the primary server name or the secondary server name. A plurality of secondary server names may be registered. The primary server name and the secondary server name may be stored in a configuration file or an initialization file. The primary server name or the secondary server name may be registered with a call to a NetBIOS application programming interface.

Claims

1. A method for configuring a server in a distributed data processing system, the method comprising the computer-implemented steps of:

registering a primary server name for the server at the application protocol layer;

registering a secondary server name for the server at the application protocol layer; and

responding to requests directed to either the primary server name or the secondary server name, wherein clients communicating with the server detect each server name as associated with a separate application independent of the physical host computer.

2. The method of claim 1 further comprising registering the primary server name or the secondary server name while configuring or initializing the server.

3. The method of claim 1 further comprising reading the primary server name or the secondary server name from a configuration file or initialization file.

4. The method of claim 1 wherein the distributed data processing system comprises a network, and wherein the requests are received from the network.

5. The method of claim 1 further comprising registering the primary server name or the secondary server name with a call to a NetBIOS application programming interface.

6. The method of claim 1 wherein the server comprises a plurality of secondary server names.

7. A method for reconfiguring servers in a distributed data processing system, the method comprising the computer-implemented steps of:

registering a first primary server name for a first server at the application protocol layer;

registering a second primary server name for a second server at the application protocol layer;

determining that the first server requires reconfiguration;

registering for the first server a secondary server name that is identical to the second primary server name; and

responding by the first server to requests directed to either the first primary server name or the secondary server name, wherein clients communicating with the server detect each server name as associated with a separate application independent of the physical host computer, and wherein the clients detect responses from the second primary name on the second server and responses from the identical secondary name on the first server as coming from the same application.

8. The method of claim 7 wherein the first server is reconfigured in response to a determination that the second server requires fail-over support by the first server.

9. A method for reconfiguring servers in a distributed data processing system, the method comprising the computer-implemented steps of:

registering a first primary server name for a first server at the application protocol layer;

registering a secondary server name for the first server at the application protocol layer;

responding to requests directed to either the first primary server name or the secondary server name;

determining that the first server requires reconfiguration;

deregistering the secondary server name for the first server; and

registering for a second server a second primary server name that is identical to the secondary server name;

wherein clients communicating with the server detect each server name as associated with a separate data application of the physical host computer, and wherein the clients detect responses from the second primary name on the second server and responses from the identical secondary name on the first server as coming from the same application.

10. The method of claim 9 wherein the secondary server name is deregistered prior to connecting the second server to a network in the distributed data processing system.

11. The method of claim 9 wherein the second primary server name is registered prior to connecting the second server to a network in the distributed data processing system.

12. A data processing system comprising:

registering means for registering a primary server name for a server and for registering a secondary server name for the server at the application protocol layer; and

responding means for responding to requests directed to either the primary server name or the secondary server name, wherein clients communicating with the server detect each server name as associated with a separate application independent of the physical host computer.

13. The data processing system of claim 12 further comprising registering the primary server name or the secondary server name while configuring or initializing the server.

14. The data processing system of claim 12 further comprising a configuration file or initialization file for storing the primary server name or the secondary server name.

15. The data processing system of claim 12 wherein the data processing system is connected to a network, and wherein the requests are received from the network.

16. The data processing system of claim 12 further comprising registering the primary server name or the secondary server name with a call to a NetBIOS application programming interface.

17. The data processing system of claim 12 wherein the server comprises a plurality of secondary server names.

18. A computer program product on a computer readable medium for use in a data processing system, the computer program product comprising:

instructions for registering a primary server name for a server and a secondary server name for the server at the application protocol layer; and

instructions for responding to requests directed to either the primary server name or the secondary server name, wherein clients communicating with the server detect each server name as associated with a separate application independent of the physical host computer.

19. The computer program product of claim 18 further comprising registering the primary server name or the secondary server name while configuring or initializing the server.

20. The computer program product of claim 18 further comprising reading the primary server name or the secondary server name from a configuration file or initialization file.

21. The computer program product of claim 18 wherein the data processing system is connected to a network, and wherein the requests are received from the network.

22. The computer program product of claim 18 further comprising registering the primary server name or the secondary server name with a call to a NetBIOS application programming interface.

23. The computer program product of claim 18 wherein the server comprises a plurality of secondary server names.