Method and System for Detecting a Fault Condition Based on Failed IGMP Join Attempts

• US 20090109859A1
• Filed: 10/31/2007
• Published: 04/30/2009
• Est. Priority Date: 10/31/2007
• Status: Abandoned Application

• Current Assignee: AT&T Knowledge Ventures, L.P. (AT&T, Inc.)
• Original Assignee: AT&T Knowledge Ventures, L.P. (AT&T, Inc.)
• Inventors: Rahman, Moshiur, Li, Zhi
• Application Number:
  US11/931,956
• Publication Number:
  US 20090109859A1
• Time in Patent Office: Days
• US Class Current: 370/242
• CPC Class Codes: H04L 12/185 with management of multicast group membership
• CPC Class Codes: H04L 41/0681 Configuration of triggering conditions
• CPC Class Codes: H04L 41/147 for predicting network behaviour
• CPC Class Codes: H04L 43/0829 Packet loss

Abstract

A fault condition is detected based on determining that a number of failed Internet Group Management Protocol (IGMP) join attempts from at least one end device is greater than or equal to a threshold.

Claims

1. A method comprising:

detecting a fault condition based on determining that a number of failed Internet Group Management Protocol (IGMP) join attempts from at least one end device is greater than or equal to a threshold.

2. The method of claim 1 further comprising:

sending a fault notification message based on said detecting the fault condition.

3. The method of claim 2 wherein said sending comprises sending the fault notification message to a ticketing system for trouble resolution.

4. The method of claim 1 further comprising:

using an alternative path route for the end device based on said detecting the fault condition.

5. The method of claim 1 wherein the number of failed IGMP join attempts excludes at least one failed IGMP join attempt that is not within a particular time interval.

6. The method of claim 1 wherein the number of failed IGMP join attempts occur without a network outage.

7. The method of claim 1 further comprising:

collecting a plurality of IGMP failure messages from at least one residential gateway, at least one digital subscriber line access multiplexer (DSLAM), and at least one switch that are in a path from the at least one end device to a video server;

wherein said detecting the fault condition is based on said collecting.

8. The method of claim 1 further comprising:

correlating the IGMP failure messages with an observed degradation in a network segment.

9. The method of claim 1 further comprising:

correlating the IGMP failure messages with Internet Protocol (IP) layer data in a network segment.

10. The method of claim 1 further comprising:

correlating the IGMP failure messages with frame loss.

11. A system comprising:

a computer system programmed to detect a fault condition based on determining that a number of failed Internet Group Management Protocol (IGMP) join attempts from at least one end device is greater than or equal to a threshold.

12. The system of claim 11 wherein the computer system is to send a fault notification message based on detecting the fault condition.

13. The system of claim 12 wherein the fault notification message is sent to a ticketing system for trouble resolution.

14. The system of claim 11 wherein the computer system is to cause an alternative path route to be used for the end device based on detecting the fault condition.

15. The system of claim 11 wherein the number of failed IGMP join attempts excludes at least one failed IGMP join attempt that is not within a particular time interval.

16. The system of claim 11 wherein the number of failed IGMP join attempts occur without a network outage.

17. The system of claim 11 wherein the computer system is to collect a plurality of IGMP failure messages from at least one residential gateway, at least one digital subscriber line access multiplexer (DSLAM), and at least one switch that are in a path from the at least one end device to a video server, and wherein the fault condition is detected based on the plurality of IGMP failure messages.

18. The system of claim 11 wherein the computer system is to correlate the IGMP failure messages with an observed degradation in a network segment.

19. The system of claim 11 wherein the computer system is to correlate the IGMP failure messages with Internet Protocol (IP) layer data in a network segment.

20. The system of claim 11 wherein the computer system is to correlate the IGMP failure messages with frame loss.

21. A computer-readable storage medium encoded with a computer program, the computer program to cause a computer system to detect a fault condition based on determining that a number of failed Internet Group Management Protocol (IGMP) join attempts from at least one end device is greater than or equal to a threshold.