Method and apparatus for detecting and reporting timeout events

• US 8,797,883 B2
• Filed: 11/21/2011
• Issued: 08/05/2014
• Est. Priority Date: 05/22/2007
• Status: Active Grant

• Current Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Original Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Inventors: Rahman, Moshiur
• Primary Examiner(s): Pham, Chi
• Assistant Examiner(s): LOPATA, ROBERT J
• Application Number:
  US13/301,563
• Publication Number:
  US 20120063326A1
• Time in Patent Office: 988 Days
• Field of Search: 307216-221, 307/242, 307/254, 307/396, 307/401, 709/223, 709/224
• US Class Current: 370/242
• CPC Class Codes: H04L 41/0622 based on time
• CPC Class Codes: H04L 41/0816 the condition being an adaptation, e.g. in response to network events
• CPC Class Codes: H04L 43/16 Threshold monitoring

Abstract

A method and apparatus for processing timeout events in a packet network are disclosed. For example, the method detects a timeout event by a first network element, wherein the timeout event is generated due to a lack of response from a second network element. The method then determines whether a threshold for reporting of timeouts is exceeded for the second network element. The method then generates a report by the first network element to a fault management system if the threshold is exceeded, where the report indicates that the second network element has exceeded the threshold for reporting of timeouts.

Claims

1. A method for processing a timeout event, comprising:

detecting the timeout event by a first network element, wherein the timeout event is generated due to a lack of response from a second network element;

determining, by the first network element, whether a threshold for reporting of timeouts is exceeded for the second network element, wherein the threshold is set by a fault management system, wherein the threshold comprises a number of timeout events for the second network element following which the first network element is to send a report to the fault management system;

sending the report by the first network element to the fault management system when the threshold is exceeded, where the report indicates that the second network element has exceeded the threshold for reporting of timeouts; and

receiving, by the first network element from the fault management system, a notification of an increase to the threshold for reporting of timeouts.

2. The method of claim 1, wherein the threshold is set in accordance with a pair of a source network element and a destination network element.

3. The method of claim 1, wherein the threshold is based on a sliding time window.

4. The method of claim 1, wherein the first network element is a border element.

5. The method of claim 1, wherein the first network element is a call control element.

6. The method of claim 1, wherein the first network element is an application server.

7. The method of claim 1, wherein the second network element is a border element.

8. The method of claim 1, wherein the second network element is a call control element.

9. The method of claim 1, further comprising:

correlating the report to a reported failure.

10. The method of claim 9, further comprising:

providing an input to a ticketing system in response to the reported failure.

11. A non-transitory computer-readable storage medium storing instructions which, when executed by a processor of a first network element, cause the processor to perform operations for processing a timeout event, the operations comprising:

detecting the timeout event by the first network element, wherein the timeout event is generated due to a lack of response from a second network element;

determining whether a threshold for reporting of timeouts is exceeded for the second network element, wherein the threshold is set by a fault management system, wherein the threshold comprises a number of timeout events for the second network element following which the first network element is to send a report to the fault management system; and

sending the report by the first network element to the fault management system when the threshold is exceeded, where the report indicates that the second network element has exceeded the threshold for reporting of timeouts and

receiving from the fault management system a notification of an increase to the threshold for reporting of timeouts.

12. The non-transitory computer-readable storage medium of claim 11, wherein the threshold is set in accordance with a pair of a source network element and a destination network element.

13. The non-transitory computer-readable storage medium of claim 11, wherein the threshold is based on a sliding time window.

14. The non-transitory computer-readable storage medium of claim 11, wherein the first network element is a border element.

15. The non-transitory computer-readable storage medium of claim 11, wherein the operations further comprise:

correlating the report to a reported failure.

16. The non-transitory computer-readable storage medium of claim 15, wherein the operations further comprise:

providing an input to a ticketing system in response to the reported failure.

17. An apparatus for processing a timeout event, comprising:

a first network element comprising a processor and a computer-readable medium storing instructions which, when executed by the processor, cause the processor to perform operations, the operations comprising;

detecting the timeout event by the first network element, wherein the timeout event is generated due to a lack of response from a second network element;

determining whether a threshold for reporting of timeouts is exceeded for the second network element, wherein the threshold is set by a fault management system, wherein the threshold comprises a number of timeout events for the second network element following which the first network element is to send a report to the fault management system;

sending the report by the first network element to the fault management system when the threshold is exceeded, where the report indicates that the second network element has exceeded the threshold for reporting of timeouts; and

receiving from the fault management system a notification of an increase to the threshold for reporting of timeouts.

18. The apparatus of claim 17, wherein the threshold is set in accordance with a pair of source network element and a destination network element.

19. The apparatus of claim 17, wherein the threshold is based on a sliding time window.

20. The apparatus of claim 17, wherein the fault management system correlates the report to a reported failure.