Management information notification to a manager in a management system

• US 7,343,376 B2
• Filed: 05/20/2004
• Issued: 03/11/2008
• Est. Priority Date: 05/20/2004
• Status: Expired due to Fees

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Gosselin, Nicolas, Tse, Edwin
• Primary Examiner(s): Le; Uyen
• Application Number:
  US10/849,142
• Publication Number:
  US 20050260987A1
• Time in Patent Office: 1,391 Days
• Field of Search: 707/1, 707/10, 707/103.R, 709/202, 709/203, 709223-226, 719316-318
• US Class Current: 1/1
• CPC Class Codes: H04L 41/0213 Standardised network management protocols, e.g. simple network management protocol [SNMP]
• CPC Class Codes: H04L 41/0226 Mapping or translating multiple network management protocols
• CPC Class Codes: H04L 41/046 comprising network management agents or mobile agents therefor

Abstract

Method and corresponding agent in a management system of a network. At least one manager and the agent have at least one old Management Information Table (MIT) containing Management Information (MI) from network resources. A Management Information Module of the agent gathers Management Information (MI) from the network resources into a current MIT. A Database Handling Module of the agent, following an event, associates one manager to the event, verifies if the associated manager is associated with one old MIT, builds a Management Information Notification (MIN) from at least the current MIT, associates the associated manager with the current MIT, freezes the current MIT into a further old MIT and creates a further current MIT. A Communication Module of the agent further sends the built MIN to the associated manager.

Claims

1. An agent of a management system, the agent comprising:

a memory;

a current Management Information Table (MIT) for storing, using the memory, management Information (MI) received from one or more network resources of the system;

a Database Handling Module for detecting a Management Information Request (MIR) for sending MI to a manager, and responsive to the MIR, the Database Handling Module;

builds a Management Information Notification (MIN) using MI from at least the current MIT;

associates the manager with the current MIT;

converts the current MIT into an old MIT; and

creates a new current MIT for storing subsequent MI to be received from the one or more network resources, the new current MIT not being associated to any manager; and

a Communication Module that;

sends the built MIN to the manager.

2. The agent of claim 1 further comprising a further old MIT created before the old MIT and wherein the Database Handling Module further:

prior to associating the manager with the current MIT, performs a verification to determine if the manager is associated with a further old MIT of the agent; and

builds the Management Information Notification (MIN) using MI from at least the current MIT using a result of the verification.

3. The agent of claim 2 wherein the Database Handling Module, while building the MIN using a result of the verification further:

identifies the further old MIT as being associated with the manager; and

places all MI stored in the agent after the creation of the further old MIT associated with the manager in the MIN.

4. The agent of claim 2 wherein the Database Handling Module, while building the MIN using a result of the verification further:

identifies the further old MIT as not being associated with the manager; and

places all MI stored in the agent in the MIN.

5. The agent of claim 1 wherein the Database Handling Module detects the MIR by reception of an MIR message from the manager and wherein the Database Handling Module further associates the manager to the MIR message by extracting a manager_id there from.

6. The agent of claim 1 wherein the Database Handling Module detects the MIR upon occurrence of a registration condition wherein:

the registration condition defined by a Subscribe_Notification sent from the manager to the agent;

the registration condition comprises one condition selected from the group of conditions consisting of a time condition and a network condition; and

the Database Handling Module further associates the manager to the MIR by extracting a manager_id from the Subscribe_Notification.

7. The agent of claim 1 wherein the Database Handling Module further creates the new current MIT following reception of new MI from one or more network resources.

8. The agent of claim 1 wherein the Database Handling Module further removes prior association of the manager with any MIT of the agent.

9. The agent of claim 1 wherein the Database Handling Module further creates the new current MIT by referencing the content of the old MIT into the new current MIT.

10. The agent of claim 1 wherein the Database Handling Module further, following converting the current MIT into the old MIT, gathers, using the memory, further MI in the new current MIT and removes outdated MI from any other MIT.

11. The agent of claim 10 wherein the Database Handling Module further removes from the agent an empty MIT that is not associated with any manager of the system.

12. The agent of claim 1 wherein the Database Handling Module further:

after associating the manager with the current MIT, starts a timer associated with the manager; and

removes the association between the manager and any MIT of the agent upon expiry of the timer.

13. The agent of claim 1, wherein the memory is a disk or memory space.

14. The agent of claim 1, wherein the memory is used to store at least a portion of the current MIT and the new current MIT.

15. The agent of claim 1, wherein the memory is used to store at least a portion of the MIN before being sent.

16. A method for handling Management Information (MI) in a management system of a network, the management system comprising an agent and a manager, and the network comprising a plurality of network resources sending MI to the agent, the method comprising steps of:

a. detecting at the agent a Management Information Request (MIR) for sending MI to the manager;

b. associating a current Management Information Table (MIT) of the agent with the manager thereby creating an old MIT associated with the manager;

c. creating a new current MIT for storing subsequent MI to be received from the plurality of network resources, the new current MIT not being associated to any manager; and

d. responding to the manager with a MI Notification (MIN) comprising MI from the old MIT.

17. The method of claim 16 wherein the MIR is received at the agent from the manager.

18. The method of claim 16 wherein the MIR is a result of an expiry of a timer of the agent.

19. The method of claim 16 wherein the MIN further comprises MI from a second old MIT, wherein the second old MIT was created prior to the old MIT and is not associated to the manager.

20. The method of claim 16 further comprising the step of:

e. removing a prior association between the manager and a second old MIT upon responding to the manager with the MIN.

21. The method of claim 16 wherein the MIN comprises MI that is received by the agent from one or more of the network resources after a previous MIN sent from the agent to the manager.

22. The method of claim 16 wherein the step c. of creating the new current MIT is performed responsive to a receipt of MI from at least one of the plurality of network resources.

23. The method of claim 16 wherein the step c. of creating the new current MIT is performed by referencing the content of the old MIT into the new current MIT.

24. The method of claim 23, wherein upon receipt of new MI from a network resource by the agent, the new MI replaces a reference to the old MIT within the new MIT.