Methods, systems, and computer readable media for performing diameter answer message-based network management at a diameter signaling router (DSR)

• US 8,995,256 B2
• Filed: 02/20/2014
• Issued: 03/31/2015
• Est. Priority Date: 02/12/2010
• Status: Active Grant

• Current Assignee: Tekelec
• Original Assignee: Tekelec
• Inventors: Kanode, Mark Edward, McCann, Thomas Matthew, Marsico, Peter Joseph
• Primary Examiner(s): Phan, Tri H
• Application Number:
  US14/185,438
• Publication Number:
  US 20140226495A1
• Time in Patent Office: 404 Days
• Field of Search: 370/229, 370235-238, 370/249, 370254-255, 370310-350, 370400-401, 370/496, 370/522, 455/445, 455/466, 455/515, 709/221, 709227-228, 709/231, 709/235, 709238-242, 709/248
• US Class Current: 370/229
• CPC Class Codes: H04L 43/0805 by checking availability
• CPC Class Codes: H04L 45/028 Dynamic adaptation of the update intervals, e.g. event-triggered updates
• CPC Class Codes: H04L 45/28 using route fault recovery
• CPC Class Codes: H04L 45/304 Route determination for signalling traffic
• CPC Class Codes: H04L 45/34 Source routing
• CPC Class Codes: H04L 45/60 Router architectures
• CPC Class Codes: H04L 63/0892 by using authentication-authorization-accounting [AAA] servers or protocols
• CPC Class Codes: H04L 69/08 Protocols for interworking; Protocol conversion

Abstract

Methods, systems, and computer readable media for performing Diameter answer message-based network management at a Diameter signaling router (DSR) are disclosed. According to one method, a Diameter answer message that includes error indicator information is received from a first Diameter node at a DSR. The error indicator information included in the Diameter answer message is examined, at the DSR, and information based on the error indicator information is used to update status information for routes maintained by the DSR to the first Diameter node.

Claims

1. A method for unsolicited network management information communication, the method comprising:

establishing, by a Diameter signaling router (DSR), a lost answer message timer signifying a time period, after which, if an answer message responsive to a Diameter request message has not been received, it is determined that the answer message is lost;

updating Diameter network management information associated with the Diameter request message in response to determining that no Diameter answer message related to the Diameter request message was detected prior to the expiration of the lost answer message timer; and

communicating the Diameter network management information associated with the Diameter request message to one or more Diameter nodes in the network.

2. The method of claim 1 wherein updating the Diameter network management information includes updating route status information maintained by each of a plurality of message processors of the DSR.

3. The method of claim 2 wherein updating the internal route or destination status information includes updating information indicating that a route or destination associated with the Diameter request message is one of congested, unavailable, unreachable, or not responding.

4. The method of claim 1 wherein the interested Diameter peer node includes one of an a DSR, Diameter routing agent, Diameter proxy agent, Diameter translation agent, Diameter relay agent, Diameter redirect agent, Diameter application, Long Term Evolution (LTE) node, Internet protocol Multimedia Subsystem (IMS) node, Diameter client, or Diameter server.

5. The method of claim 1 wherein communicating the Diameter network management information includes statically provisioning one of a list, table, or database of subscribing and subscribed-to Diameter nodes at the DSR.

6. The method of claim 1 wherein communicating the Diameter network management information includes dynamically provisioning, in real-time at the DSR, one of a list, table, or database of subscribing and subscribed-to Diameter nodes in response to one or more interested Diameter nodes that wish to subscribe to network management information updates.

7. The method of claim 1 wherein communicating the Diameter network management information includes one of broadcast, multicast, and unicast.

8. A system for unsolicited network management information broadcast, the system comprising:

a Diameter signaling router (DSR) including;

a network management module for establishing a lost answer message timer signifying a time period, after which, if an answer message responsive to a Diameter request message has not been received, it is determined that the answer message is lost and for updating Diameter network management information associated with the Diameter request message in response to determining that no Diameter answer message related to the Diameter request message was detected prior to the expiration of the lost answer message timer; and

a Diameter message processor for communicating the Diameter network management information associated with the Diameter request message to one or more Diameter nodes in the network.

9. The system of claim 8 wherein the network management module is configured to update route status information maintained by each of a plurality of message processors of the DSR in response to determining that no answer message related to the Diameter request message was recovered prior to the expiration of the lost answer message timer.

10. The system of claim 9 wherein the network management module is configured to update information indicating that a route or destination associated with the Diameter request message is one of congested, unavailable, unreachable, or not responding.

11. The system of claim 8 wherein the interested Diameter peer node includes one of an a DSR, Diameter routing agent, Diameter proxy agent, Diameter translation agent, Diameter relay agent, Diameter redirect agent, Diameter application, Long Term Evolution (LTE) node, Internet protocol Multimedia Subsystem (IMS) node, Diameter client, or Diameter server.

12. The system of claim 8 wherein the network management module is configured to statically provision one of a list, table, or database of subscribing and subscribed-to Diameter nodes at the DSR.

13. The system of claim 8 wherein the network management module is configured to dynamically provision, in real-time at the DSR, one of a list, table, or database of subscribing and subscribed-to Diameter nodes in response to one or more interested Diameter nodes that wish to subscribe to network management information updates.

14. The system of claim 8 wherein the network management module is configured to one of broadcast, multicast, and unicast the Diameter network management information.

15. A non-transitory computer readable medium comprising computer executable instructions embodied in a non-transitory computer readable medium and when executed by a processor of a computer performs steps comprising:

at a Diameter signaling router (DSR);

establishing, by the DSR, a lost answer message timer signifying a time period, after which, if an answer message responsive to a Diameter request message has not been received, it is determined that the answer message is lost;

updating Diameter network management information associated with the Diameter request message in response to determining that no Diameter answer message related to the Diameter request message was detected prior to the expiration of the lost answer message timer; and

communicating the Diameter network management information associated with the Diameter request message to one or more Diameter nodes in the network.