Network manager and method thereof for a communication system

• US 6,301,266 B1
• Filed: 02/10/1999
• Issued: 10/09/2001
• Est. Priority Date: 02/10/1999
• Status: Expired due to Fees

• Current Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Dubinsky, Lana, Harper, John D., Karch, Brad, Kremske, Randall G., Cramer, Kristin, Agarwal, Vijay, Ballew, Eliza, Peterson, Larry M., Matz, Steven A.
• Primary Examiner(s): Olms, Douglas
• Assistant Examiner(s): NGUYEN, BRIAN D
• Application Number:
  US09/247,386
• Time in Patent Office: 972 Days
• Field of Search: 370/465, 370/477, 370/486, 370/216, 370/229, 370/231, 370/236, 370/241, 370/242, 370/243, 370/244, 370/245, 370/246, 370/254, 370/255, 370/401, 709/220, 709/223, 709/224
• US Class Current: 370/465
• 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

A method of managing objects residing in a communication system includes the steps of reading (201), by a network manager for a plurality of objects represented by at least one agent and residing in a communication system, a mapping of bitmap types to object types and monitoring (203) at least one communication resource between the network manager and the at least one agent. After service interruption on one communication resource of the at least one communication resource, and upon detecting (207) a return to service of the one communication resource, the network manager reads at least one bitmap from the at least one agent, wherein the at least one bitmap represents information relating to at least one object of the plurality of objects, and interpreting (213) the at least one bitmap by utilizing the mapping of bitmap types to object types in order to determine a status of the at least one object of the plurality of objects.

Claims

1. A method comprising the steps of:

reading, by a network manager for a plurality of objects represented by at least one agent and residing in a communication system, a mapping of bitmap types to object types;

monitoring a communication resource between the network manager and an agent of the at least one agents;

after service interruption on the communication resource, and upon detecting a return to service of the communication resource, reading, by the network manager, at least one bitmap from the agent, wherein the at least one bitmap represents information relating to at least one object of the plurality of objects; and

interpreting, by the network manager, the at least one bitmap by utilizing the mapping of bitmap types to object types in order to determine a status of the at least one object of the plurality of objects.

2. The method of claim 1, further comprising the step of updating, by the network manager, the status for the at least one object of the plurality of objects in a storage device within the network manager.

3. The method of claim 1, further comprising the step of displaying, by the network manager, the status of the at least one object of the plurality of objects to a user of the network manager.

4. The method of claim 1, wherein the plurality of objects are logical or physical entities within a radio frequency communication system.

5. The method of claim 1, further comprising the step of, when the status of the at least one object indicates an abnormal condition, requesting, by the network manager, a detailed status of the at least one object from the agent.

6. The method of claim 1, wherein the at least one agent comprises at least a first and second agent, wherein the first agent maintains a bitmap for the at least one object of the plurality of objects, and wherein the second agent maintains a detailed status for the at least one object of the plurality of objects.

7. The method of claim 6, further comprising the step of, when the status of the at least one object indicates an abnormal condition, requesting, by the network manager, a detailed status from the second agent.

8. The method of claim 1, wherein two or more agents have the capability of being the active agent for a subsystem, further comprising the step of determining an active agent for the subsystem, and communicating with the active agent regarding bitmap activity for the subsystem, wherein the subsystem comprises a subset of the plurality of objects.

9. The method of claim 1, wherein the mapping of bitmap types to object types is different for each subsystem of the communication system, wherein each subsystem comprises a subset of the plurality of objects.

10. The method of claim 1, further comprising the step of requesting, by the network manager, that the at least one agent send to the network manager a current bitmap for the at least one object of the plurality of objects at any time while the at least one communication resource remains in service.

11. In a communication system having a network manager for a plurality of objects that are represented by at least one agent, a method comprising the steps of:

monitoring, by an agent of the at least one agents a detailed status of at least one object of the plurality of objects; and

upon detecting a change in detailed status of the at least one object, causing a bitmap for the at least one object to be updated to include the change in detailed status, wherein one bit of the bitmap represents two or more objects of the plurality of objects, wherein a bit value of 1 represents an abnormal condition for at least one of the two or more objects, wherein a bit value of 0 represents a normal condition for all of the two or more objects, further comprising the step of providing an identity of whichever objects caused a bit value of 1 in a bitmap when the agent is queried for the source of an abnormal condition appearing in a bitmap.

12. In a communication system comprised of a network manager, a plurality of communication resources, and one or more subsystems, wherein a subsystem is represented by an active agent from a plurality of agents and wherein the subsystem is comprised of a plurality of objects, a method comprising the steps of:

reading, by the network manager, a mapping of bitmap types to object types;

monitoring a communication resource, of the plurality of resources, between the network manager and the active agent;

after service interruption on the communication resource, and upon detecting a return to service of the communication resource, requesting subsystem information for the subsystem represented by the active agent;

if valid subsystem information is not received from the active agent, determining a new active agent from among the plurality of agents;

requesting, by the network manager, at least one bitmap from the new active agent;

reading, by the network manager, the at least one bitmap from the new active agent, wherein the at least one bitmap represents information relating to at least one object of the plurality of objects; and

interpreting, by the network manager, the at least one bitmap by utilizing the mapping of bitmap types to object types in order to determine a status of the at least one object of the plurality of objects.

13. The method of claim 12, further comprising the step of, when the status of the at least one object indicates an abnormal condition, requesting, by the network manager, a detailed status of the at least one object from the new active agent.

14. The method of claim 12, further comprising the step of requesting, by the network manager, that the new active agent send to the network manager a current bitmap for the at least one object of the plurality of objects at any time while the communication resource remains in service.