Dynamic resource reallocation

• US 6,745,221 B1
• Filed: 03/01/1999
• Issued: 06/01/2004
• Est. Priority Date: 03/01/1999
• Status: Expired due to Term

• Current Assignee: Mitel Networks Corporation
• Original Assignee: Mitel Incorporated (MLN TopCo Ltd.)
• Inventors: Ronca, David R.
• Primary Examiner(s): Follansbee, John
• Assistant Examiner(s): Nguyen, Dustin
• Application Number:
  US09/259,986
• Time in Patent Office: 1,919 Days
• Field of Search: 370/230, 370/232, 370/216, 370/229, 709/100, 709/223, 709/224, 709/104, 709/226
• US Class Current: 718/104
• CPC Class Codes: H04M 3/50 Centralised arrangements for answering calls; Centralised arrangements for recording messages for absent or busy subscribers H04M3/487 takes precedence; centralised dictation systems H04M11/10; Centralised arrangements for recording messages

Abstract

A resource allocation manager to allocate resources to handle applications in a messaging system includes a database storing a set of resource allocation rules to govern the allocation of resources to applications. A resource allocation engine is responsive to events that potentially effect the manner in which resources are allocated. The resource allocation agent accesses the database and interprets the resource allocation rules in response to events to determine if the events warrant a reallocation of resources to handle applications. Allocation agents are responsive to the resource allocation engine and reallocate resources to handle applications when detected events warrant a reallocation of resources. A method of allocating resources in a messaging system is also provided.

Claims

1. A method for allocating resources to handle applications in a messaging system comprising the steps of:

establishing a set of resource allocation rules governing the allocation of resources to applications;

monitoring the messaging system to detect events that potentially effect the manner in which resources of said messaging systems are allocated;

accessing the resource allocation rules in response to detected events to determine if said detected events warrant a reallocation of resources to handle applications;

generating resource allocation directives when said detected events warrant a reallocation of resources; and

reallocating resources to handle applications in accordance with said resource allocation directives, wherein said resource allocation directives include non-interrupting and interrupting resource allocation directives, reallocation of said resources occurring immediately in response to interrupting resource allocation directives and occurring after completion of current tasks handled by the resources to be reallocated in response to said non-interrupting resource allocation directives.

2. The method of claim 1 wherein said detected events include a change in traffic level.

3. The method of claim 2 wherein said detected events include an increase in traffic level beyond a first threshold value.

4. The method of claim 3 wherein said detected events include a decrease in traffic level below a second threshold value.

5. The method of claim 3 wherein said detected events include particular times of day.

6. A method of claim 5 wherein said particular times of day identify traffic peak periods and non-peak periods or business and non-business hours.

7. A method of claim 1 further comprising monitoring traffic patterns and resource usage over time and adjusting the resource allocation rules in accordance therewith.

8. A method of claim 7 wherein said resource allocation rules are adjusted automatically.

9. A method of claim 1 wherein during said monitoring, event agents are polled to detect said events.

10. A resource allocation manager to allocate resources to handle applications in a messaging system, said resource allocation manager comprising:

a database storing a set of resource allocation rules governing the allocation of resources to applications;

a resource allocation engine responsive to events that potentially effect the manner in which resources are allocated, said resource allocation agent accessing said database and interpreting the resource allocation rules in response to events to determine if said events warrant a reallocation of resources to handle applications, said resource allocation engine generating resource allocation directives when said detected events warrant a reallocation of resources; and

allocation agents responsive to said resource allocation engine and reallocating resources to handle applications wherein said resource allocation directives include non-interrupting and interrupting resource allocation directives, reallocation of said resources occurring immediately in response to interrupting resource allocation directives and occurring after completion of current tasks handled by the resources to be reallocated in response to said non-interrupting resource allocation directives.

11. A resource allocation manager as defined in claim 10 further comprising:

a plurality of event detection agents monitoring said messaging system to detect said events.

12. A resource allocation manager as defined in claim 11 wherein said event detection agents notify said resource allocation engine of said events upon detection thereof.

13. A resource allocation manager as defined in claim 11 wherein said event detection agents include a traffic agent to monitor traffic level.

14. A resource allocation manager as defined in claim 13 wherein said traffic agent detects at least one of an increase in traffic level beyond a predetermined threshold value and a decrease in traffic level below a predetermined threshold value.

15. A resource allocation manager as defined in claim 13 wherein said event detection agents include a system clock agent to detect particular times of the day.

16. A resource allocation manager as defined in claim 15 wherein said system clock agent detects traffic peak periods and non-peak periods or business and non-business hours.

17. A resource allocation manager as defined in claim 10 further comprising:

a learning engine monitoring traffic patterns and resource usage over time and adjusting the resource allocation rules in accordance therewith.

18. A resource allocation manager as defined in claim 17 wherein said learning engine adjusts said resource allocation rules automatically.

19. A resource allocation manager as defined in claim 10 wherein said resource allocation engine generates allocation directives when a reallocation of resources is required, and

wherein said allocation agents are responsive to said allocation directives and operate to reallocate the resources in accordance with said allocation directives.

20. A method for allocating ports of a messaging system to incoming and outgoing communication facilities comprising the steps of:

establishing a set of resource allocation rules governing the allocation of said ports to communicate facilities of said messaging system, at least one of said ports being dedicated to a specific communication facility during a predetermined period of the day;

monitoring the messaging system to detect events that effect the manner by which ports are allocated to said communication facilities;

accessing the resource allocation rules to determine how said ports are to be reallocated in response to said detected events and generating resource allocation directives, said resource allocation directives including interrupting and non-interrupting resource allocation directives; and

reallocating ports to accommodate needs of said communication facilities in accordance with said resource allocation directives.

21. The method of claim 20 wherein a plurality of ports are dedicated a specific communication facility during a predetermined period of the day.

22. The method of claim 21 wherein at least some of said ports are dedicated to a specific communication facility at all times and are not reallocated in response to resource allocation directives.

23. The method of claim 22 wherein said ports include both voice and facsimile ports.

24. The method of claim 23 wherein said detected events include a change in communication traffic level.

25. The method of claim 24 wherein said detected events include an increase in traffic level beyond a first threshold value and a decrease in traffic level below a second threshold value.

26. The method of claim 22 further comprising the step of monitoring communication traffic patterns and port usage over time and adjusting the resource allocation rules in accordance therewith.

27. The method of claim 23 wherein selected ones of said voice and facsimile ports are dedicated to specific communication facilities at all times and wherein selected others of said voice and facsimile ports are dedicated to specific communication facilities at specified periods of the day.