METHOD AND SYSTEM FOR TRAFFIC FLOW AND LINK MANAGEMENT USING DOMAIN NOTIFICATIONS

• US 20110075662A1
• Filed: 09/30/2009
• Published: 03/31/2011
• Est. Priority Date: 09/30/2009
• Status: Active Grant

• Current Assignee: Wi-LAN Inc.
• Original Assignee: Alcatel-Lucent USA, Inc. (Nokia Corporation)
• Inventors: Elandassery, Deepak, Rathunde, Dale, Barker, William E.
• Granted Patent: US 9,071,511 B2
• Time in Patent Office: Days
• US Class Current: 370/389
• CPC Class Codes: H04L 12/413 with random access, e.g. carrier-sense multiple-access with collision detection [CSMA-CD]
• CPC Class Codes: H04L 41/0654 using network fault recovery ring fault isolation or reconfiguration in loop networks without recovery actions by a network management system H04L12/437
• CPC Class Codes: H04L 45/28 using route fault recovery
• CPC Class Codes: H04L 49/555 Error detection
• CPC Class Codes: H04L 49/557 Error correction, e.g. fault recovery or fault tolerance

Abstract

A system allowing for path monitoring and notification in a system of switching elements and processing elements is provided. An exemplary technique uses a monitoring and notification module configured to generate and output monitoring messages across multiple paths defined by the plurality of switching elements and the plurality of processing elements, detect a fault in the system based on the monitoring messages, and generate and output multiple alert messages across the multiple paths to initiate recovery from the fault As such, a single element (or group of elements) does not become isolated from the rest of the elements in the system.

Claims

1. A system comprising:

a plurality of switching elements;

a plurality of processing elements associated with the plurality of switching elements;

a monitoring and notification module operative to generate and output monitoring messages across multiple paths defined by the plurality of switching elements and the plurality of processing elements, detect a fault in the system based on the monitoring messages, and generate and output multiple alert messages across the multiple paths to initiate recovery from the fault.

2. The system as set forth in claim 1 wherein the monitoring and notification module resides on at least one of the plurality of processing elements.

3. The system as set forth in claim 1 wherein the monitoring and notification module resides on at least one of the plurality of switching elements.

4. The system as set forth in claim 1 wherein the monitoring and notification module is further configured to generate and output control messages.

5. The system as set forth in claim 1 wherein the monitoring and notification module is further configured to generate and output status messages.

6. The system as set forth in claim 1 wherein the monitoring messages are heart beat messages.

7. The system as set forth in claim 1 wherein the monitoring messages are network management protocol-based.

8. The system as set forth in claim 1 further comprising an event receiving module on at least one of the plurality of processing elements.

9. The system as set forth in claim 1 further comprising an event receiving module on at least one of the plurality of switching elements.

10. A method implemented in a network having a plurality of switching elements and a plurality of processing elements, the method comprising:

generating and outputting monitoring messages across multiple paths in the network;

detecting a fault in the network based on the monitoring messages; and

,

generating and outputting multiple alert messages across the multiple paths to initiate recovery from the fault.

11. The method as set forth in claim 10 wherein the method is implemented on a processing element.

12. The method as set forth in claim 10 wherein the method is implemented on a switching element.

13. The method as set forth in claim 10 further comprising generating and outputting control messages.

14. The method as set forth in claim 10 further comprising generating and outputting status messages.

15. The method as set forth in claim 10 wherein the monitoring messages are heart beat messages.

16. The method as set forth in claim 10 wherein the monitoring messages are network management protocol-based.

17. The method as set forth in claim 10 further comprising listening through an event receiving module on at least one of the plurality of processing elements.

18. The method as set forth in claim 10 further comprising listening through an event receiving module on at least one of the plurality of switching elements.