System, method and apparatus for prioritizing network traffic using deep packet inspection (DPI) and centralized network controller

• US 20090238071A1
• Filed: 03/20/2008
• Published: 09/24/2009
• Est. Priority Date: 03/20/2008
• Status: Abandoned Application

• Current Assignee: Embarq Holdings Company LLC (Lumen Technologies, Inc.)
• Original Assignee: Embarq Holdings Company LLC (Lumen Technologies, Inc.)
• Inventors: Ray, Amar Nath, Heinz, John M.
• Application Number:
  US12/052,562
• Publication Number:
  US 20090238071A1
• Time in Patent Office: Days
• US Class Current: 370/235
• CPC Class Codes: H04L 47/10 Flow control; Congestion control
• CPC Class Codes: H04L 47/24 Traffic characterised by specific attributes, e.g. priority or QoS
• CPC Class Codes: H04L 47/2433 Allocation of priorities to traffic types

Abstract

A method, system, and apparatus for prioritizing network traffic according to one embodiment includes receiving a packet addressed to a receiver device from a sender device, and identifying the packet in a network layer to determine an application and/or protocol associated with the packet. The method further includes generating traffic priority information associated with the packet based upon the identifying. The traffic priority information indicates traffic prioritization between the sender device and the receiver device. The method further includes sending the traffic priority information to a network controller. In various embodiments, the packet is identified in the network layer using deep packet inspection.

Claims

1. A method for prioritizing network traffic comprising:

receiving a packet from a sender device, the packet addressed to a receiver device;

identifying the packet in a network layer to determine at least one of an application or protocol associated with the packet;

generating traffic priority information associated with the packet based upon identifying the packet, the traffic priority information indicating traffic prioritization between the sender device and the receiver device; and

sending the traffic priority information to a network controller.

2. The method of claim 1, further comprising:

prioritizing, by the network controller, traffic between the sender device and the receiver device in accordance with the traffic priority information.

3. The method of claim 1, wherein identifying the packet in the network layer includes identifying the packet in the network layer using deep packet inspection.

4. The method of claim 1, wherein sending the traffic priority information to the network controller includes sending the traffic priority information to the network controller in the network layer.

5. The method of claim 1, further comprising sending the traffic priority information to at least one of the sender device and the receiver device.

6. The method of claim 5, wherein sending the traffic priority information to at least one of the sender device and the receiver device includes sending the traffic priority information in a transport layer.

7. The method of claim 1, wherein the traffic priority information includes a deep packet inspection code.

8. The method of claim 1, wherein identifying the packet in the network layer includes performing analysis by port on the packet.

9. The method of claim 1, wherein identifying the packet in the network layer includes performing analysis by string match on the packet.

10. The method of claim 1, wherein identifying the packet in the network layer includes performing analysis by numerical properties on the packet.

11. An apparatus for prioritizing network traffic comprising:

at least one processor, the at least one processor configured to;

receive a packet from a sender device, the packet addressed to a receiver device;

identify the packet in a network layer to determine at least one of an application or protocol associated with the packet;

generate traffic priority information associated with the packet based upon the identifying, the traffic priority information indicating traffic prioritization between the sender device and the receiver device; and

send the traffic priority information to a network controller.

12. The apparatus of claim 11, wherein the network controller is configured to prioritize traffic between the sender device and the receiver device in accordance with the traffic priority information.

13. The apparatus of claim 11, wherein the at least one processor is configured to identify the packet in the network layer by identifying the packet in the network layer using deep packet inspection.

14. The apparatus of claim 11, wherein the at least one processor is configured to send the traffic priority information to the network controller by sending the traffic priority information to the network controller in the network layer.

15. The apparatus of claim 11, wherein the network controller is configured to send the traffic priority information to at least one of the sender device and the receiver device.

16. The apparatus of claim 15, wherein the network controller is configured to send the traffic priority information to the at least one of the sender device and the receiver devices by including the traffic priority information in a transport layer.

17. The apparatus of claim 11, wherein the traffic priority information includes a deep packet inspection code.

18. The apparatus of claim 11, wherein the at least one processor is configured to identify the packet in the network layer by performing analysis by port on the packet.

19. The apparatus of claim 11, wherein the at least one processor is configured to identify the packet in the network layer by performing analysis by string match on the packet.

20. The apparatus of claim 11, wherein the at least one processor is configured to identify the packet in the network layer by performing analysis by numerical properties on the packet.