METHODS, SYSTEMS, AND COMPUTER READABLE MEDIA FOR PROVIDING PRIORITY ROUTING AT A DIAMETER NODE

• US 20110200053A1
• Filed: 02/11/2011
• Published: 08/18/2011
• Est. Priority Date: 02/12/2010
• Status: Active Grant

• Current Assignee: Tekelec
• Original Assignee: Tekelec
• Inventors: Marsico, Peter Joseph, Tomar, Mahesh, Kanode, Mark Edward
• Granted Patent: US 8,644,324 B2
• Time in Patent Office: Days
• US Class Current: 370/401
• 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 providing priority routing at a Diameter node are disclosed. One exemplary method includes receiving, at a Diameter message processor associated with a DSR, a Diameter message from a first Diameter node. The method further includes assigning, at the Diameter message processor, a priority level indicator to the Diameter message. The method also includes routing the Diameter message with the priority level indicator to a second Diameter node. A second exemplary method includes receiving, at a Diameter message processor associated with a DSR, a Diameter message that includes a priority level indicator from a first Diameter node. The second method further includes applying, at the Diameter message processor, a routing action to the Diameter message based at least in part on the priority level indicator contained in the Diameter message.

Claims

1. A method for routing Diameter messages using a Diameter Signaling Router (DSR) based on priority information, the method comprising:

receiving, at a Diameter message processor associated with a DSR, a Diameter message from a first Diameter node;

assigning, at the Diameter message processor, a priority level indicator to the Diameter message; and

routing the Diameter message with the priority level indicator to a second Diameter node.

2. A method of claim 1 comprising selecting a route over which to send the Diameter message based at least in part on the assigned priority value to the second Diameter node.

3. The method of claim 1 wherein routing the Diameter message includes selecting the second Diameter node as the destination for the Diameter message based at least in part on the assigned priority indicator.

4. The method of claim 3 wherein selecting the second Diameter node includes selecting the second Diameter node associated with a particular QoS level that is indicated by the assigned priority level indicator in the Diameter message.

5. The method of claim 2 wherein routing the Diameter message includes routing the Diameter to the second Diameter route if the assigned priority value exceeds a priority threshold contained in a priority routing rules database, and discarding the Diameter message if the assigned priority value fails to exceed a priority threshold contained in a priority routing rules database.

6. The method of claim 5 wherein in response to discarding the Diameter message, sending the first Diameter node a Diameter response message that indicates that an error associated with the Diameter message occurred.

7. The method of claim 2 wherein selecting a route includes selecting a route based at least in part on the congestion state of the second Diameter node.

8. The method of claim 1 wherein the second Diameter node is a peer node with respect to the DSR.

9. A method for routing Diameter messages using a Diameter Signaling Router (DSR) based on priority information, the method comprising:

receiving, at a Diameter message processor associated with a DSR, a Diameter message that includes a priority level indicator from a first Diameter node; and

applying, at the Diameter message processor, a routing action to the Diameter message based at least in part on the priority level indicator contained in the Diameter message.

10. The method of claim 9 wherein applying a routing action includes accessing a priority base routing rules database.

11. The method of claim 9 wherein applying a routing action includes discarding the Diameter message.

12. The method of claim 9 wherein applying a routing action includes routing the Diameter message to an QoS Diameter resource node associated with the priority level indicator.

13. The method of claim 9 wherein applying a routing action includes selecting a route over which to forward the Diameter message towards the second Diameter node.

14. The method of claim 9 wherein applying a routing action includes delaying the routing of the Diameter message towards the second Diameter node.

15. The method of claim 9 wherein the priority indicator is encrypted.

16. The method of claim 15 wherein receiving the Diameter message includes decrypting the priority level indicator at the DSR.

17. A system for routing Diameter signaling messages, the system comprising:

a Diameter signaling router (DSR) comprising;

a memory for storing Diameter peer routing information that includes Diameter message priority level information;

a Diameter message processor configured to receiving a Diameter message from a first Diameter node, assigning a priority level indicator to the Diameter message, and routing the Diameter message with the priority level indicator to a second Diameter node in accordance to the Diameter message priority level information.

18. A system of claim 17 wherein the Diameter message processor is configured to select a route over which to send the Diameter message based at least in part on the assigned priority value to the second Diameter node.

19. The system of claim 17 the Diameter message processor is configured to select the second Diameter node as the destination for the Diameter message based at least in part on the assigned priority indicator.

20. The system of claim 19 the Diameter message processor is configured to select the second Diameter node associated with a particular QoS level that is indicated by the assigned priority level indicator in the Diameter message.

21. The system of claim 18 wherein the Diameter message processor is configured to route the Diameter to the second Diameter route if the assigned priority value exceeds a priority threshold contained in a priority routing rules database, and discard the Diameter message if the assigned priority value fails to exceed a priority threshold contained in a priority routing rules database.

22. The system of claim 21 wherein in response to discarding the Diameter message, the Diameter message processor is configured to send the first Diameter node a Diameter response message that indicates that an error associated with the Diameter message occurred.

23. The system of claim 18 wherein the Diameter message processor is configured to select a route based at least in part on the congestion state of the second Diameter node.

24. The system of claim 17 wherein the second Diameter node is a peer node with respect to the DSR.

25. A system for routing Diameter signaling messages, the system comprising:

a Diameter signaling router (DSR) comprising;

a memory for storing Diameter peer routing information that includes Diameter message priority level information;

a Diameter message processor configured to receive a Diameter message that includes a priority level indicator from a first Diameter node and to apply a routing action to the Diameter message based at least in part on the priority level indicator contained in the Diameter message.

26. The system of claim 25 wherein the Diameter message processor is configured to apply a routing action includes accessing a priority base routing rules database.

27. The system of claim 25 wherein the Diameter message processor is configured to discard the Diameter message.

28. The system of claim 25 wherein the Diameter message processor is configured to apply route the Diameter message to an QoS Diameter resource node associated with the priority level indicator.

29. The system of claim 25 wherein the Diameter message processor is configured to select a route over which to forward the Diameter message towards the second Diameter node.

30. The system of claim 25 wherein the Diameter message processor is configured to delay the routing of the Diameter message towards the second Diameter node.

31. The system of claim 25 wherein the priority indicator is encrypted.

32. The system of claim 30 the Diameter message processor is configured to decrypt the priority level indicator at the DSR.

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

receiving, at a Diameter message processor associated with a DSR, a Diameter message from a first Diameter node;

assigning, at the Diameter message processor, a priority level indicator to the Diameter message; and

routing the Diameter message with the priority level indicator to a second Diameter node.

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

receiving, at a Diameter message processor associated with a DSR, a Diameter message that includes a priority level indicator from a first Diameter node; and

applying, at the Diameter message processor, a routing action to the Diameter message based at least in part on the priority level indicator contained in the Diameter message.