Automated Network Fault Analysis

• US 20100128600A1
• Filed: 11/26/2008
• Published: 05/27/2010
• Est. Priority Date: 11/26/2008
• Status: Abandoned Application

• Current Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Original Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Inventors: Cykiert, Harry, Srinivasmurthy, Sunil, Zuckerman, Daniel A.
• Application Number:
  US12/323,714
• Publication Number:
  US 20100128600A1
• Time in Patent Office: Days
• US Class Current: 370/221
• CPC Class Codes: H04L 41/0213 Standardised network management protocols, e.g. simple network management protocol [SNMP]
• CPC Class Codes: H04L 41/0663 Performing the actions predefined by failover planning, e.g. switching to standby network elements
• CPC Class Codes: H04L 41/12 Discovery or management of network topologies

Abstract

A system that incorporates teachings of the present disclosure may include, for example, a controller to form inquiries and commands, receive an alarm at an Operational Support System (OSS), automatically capture a state of a failure of the network element as close as possible to a time of the failure in response to the alarm, and automatically lookup and run a command or a set of commands in response to the alarm for real time analysis of network element fault management data and network element performance data within the OSS for a network. Other embodiments are disclosed.

Claims

1. A method, comprising:

forming inquiries and commands for real time analysis of network element fault management data and network element performance data within an Operational Support System (OSS) for an IPTV network or an iTV network;

automatically receiving an alarm at the OSS;

automatically looking up a command or a set of commands in response to the alarm;

automatically running the command or the set of commands;

capturing a state of a failure within a predetermined brief period of time of the failure; and

automatically correcting the fault based on a service impact, on data extracted from the alarm, on a network topology, and on a strategic policy for handling faults in view of the service impact and the network topology.

2. The method of claim 1, wherein the method scales a network in size with less than a corresponding increase in cost for performing the steps of forming inquiries and commands, automatically looking up, automatically running the command or set of commands, capturing the state of the failure and automatically correcting.

3. The method of claim 1, wherein the method runs the command or set of commands and captures a zero state of the failure.

4. The method of claim 1, wherein the method stores data generated as a result of a running of the command or the set of commands for subsequent analysis.

5. The method of claim 1, wherein the method captures a network device data in real time by executing commands as soon as an alarm is received.

6. The method of claim 1, wherein the method captures a snapshot of network element fault management data and network element performance data at the time of the failure.

7. The method of claim 6, wherein the method takes multiple snapshots of network element fault management data and network element performance data at subsequent times to monitor changing conditions on the network device to enable further diagnosis.

8. The method of claim 1, wherein a list of inquiries and data to be gathered for an alarm is configurable and based on trap number, switch type, alarm type, alarm text, or alarm reason.

9. A method, comprising:

analyze network element fault management data in real time;

analyze network element performance data in real time;

automatically determine service impact of fault management data and performance data on customers;

automatically generate at least one alarm based on the analysis of fault management data and performance data; and

automatically diagnose a fault based on the at least one alarm generated.

10. The method of claim 9, wherein the method comprises automatically correcting the fault.

11. The method of claim 9, wherein the method comprises automatically correcting the fault based on the service impact determined, on data extracted from the at least one alarm generated, on network topology, and on a strategic policy for handling faults in view of the service impact and network topology.

12. The method of claim 9, wherein an Operational Support System (OSS) for the network element builds a lookup table of inquiries and alarms.

13. The method of claim 12, wherein the OSS processes the at least one alarm and uses the lookup table to determine a command or a set of commands to run in response to the at least one alarm.

14. The method of claim 13, wherein the method runs the command or set of commands and captures a zero state of a failure.

15. The method of claim 13, wherein the method runs the command or set of commands and captures a state of a failure within 10 seconds or less of the failure.

16. The method of claim 15, wherein the method stores data generated as a result of the command or set of commands for subsequent analysis.

17. A computer-readable storage medium, comprising computer instructions operable to:

form inquiries and commands for real time analysis of network element fault management data and network element performance data within a Operational Support System (OSS) for a network;

automatically receive an alarm at the OSS;

automatically lookup and run a command or a set of commands in response to the alarm; and

capture a state of a failure of the network element as close as possible to a time of the failure.

18. The computer readable storage medium of claim 17, wherein the computer readable storage medium comprises computer instructions to store data generated as a result of a running of the command or the set of commands for subsequent analysis.

19. The computer readable storage medium of claim 17, wherein the computer readable storage medium comprises computer instructions to capture a snapshot of network element fault management data and network element performance data at the time of the failure and take multiple snapshots of network element fault management data and network element performance data at subsequent times to monitor changing conditions on the network device to enable further diagnosis.

20. The computer readable storage medium of claim 17, wherein the computer readable storage medium comprises computer instructions to build a lookup table to include knowledge of an entire network topology including information for the network element and from a plurality of neighboring devices.

21. A system, comprising a controller to:

build a set of inquiries and commands for automated fault detection and correction;

receive an alarm at an Operational Support System (OSS);

automatically capture a state of a failure of the network element within a brief predetermined time of the failure in response to the alarm; and

automatically lookup and run a command or a set of commands in response to the alarm for real time analysis of network element fault management data and network element performance data within the OSS for a network.

22. The system of claim 21, wherein the system stores data generated as a result of a running of the command or the set of commands for subsequent analysis.

23. The system of claim 21, wherein the system captures a snapshot of network element fault management data and network element performance data at the time of the failure and takes multiple snapshots of network element fault management data and network element performance data at subsequent times to monitor changing conditions on the network device to enable further diagnosis.

24. The system of claim 21, wherein the system implements Detection, Correction, Impact (DCI) functionality.

25. The system of claim 21, wherein the system automatically detects the failure, extracts data from the alarm, determines a network topology for the network having the failure, automatically determines an impact due to the failure and automatically corrects the failure in view of data extracted from the alarm, the network topology, and the impact.