System and method for adjusting the window size of a TCP packet through remote network elements

• US 20080049632A1
• Filed: 05/31/2007
• Published: 02/28/2008
• Est. Priority Date: 08/22/2006
• Status: Active Grant

• Current Assignee: CenturyLink Intellectual Property LLC (Lumen Technologies, Inc.)
• Original Assignee: CenturyLink Intellectual Property LLC (Lumen Technologies, Inc.)
• Inventors: Bugenhagen, Michael K., Morrill, Robert J., Chakravarthy, Cadathur V., Ray, Amar N.
• Granted Patent: US 8,098,579 B2
• Time in Patent Office: Days
• US Class Current: 370/250
• CPC Class Codes: H04L 41/0816 the condition being an adaptation, e.g. in response to network events
• CPC Class Codes: H04L 41/145 involving simulating, designing, planning or modelling of a network
• CPC Class Codes: H04L 43/0852 Delays
• CPC Class Codes: H04L 43/16 Threshold monitoring
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements

Abstract

A system for adjusting the window size of a TCP packet on a packet network including a receiving transport layer device configured to determine network performance information of the packet network; concatenate the network performance information into the data packets; adjust the window size of the TCP packet based on the network performance information; a non-transport layer device in communication with the receiving transport layer device for receiving the data packets; and a transport layer device in communication with the non-transport layer device, wherein the non-transport layer device forwards the data packets on to the transport layer device. A method for adjusting the window size of a TCP packet on a packet network is also included.

Claims

1. A system for adjusting the window size of a TCP packet on a packet network comprising:

a receiving transport layer device configured to;

determine network performance information of said packet network;

concatenate said network performance information into said data packets;

adjust said window size of said TCP packet based on said network performance information;

a non-transport layer device in communication with said receiving transport layer device for receiving said data packets; and

a transport layer device in communication with said non-transport layer device, wherein said non-transport layer device forwards said data packets on to said transport layer device.

2. The system for adjusting the window size of a TCP packet on a packet network of claim 1 further comprising:

a sending network layer device for receiving said data packets from said transport layer device, said sending network layer device configured to;

determine network performance information of said packet network;

concatenate said network performance information into said data packets;

adjust said window size of said TCP packet based on said network performance information;

3. The system for adjusting the window size of a TCP packet on a packet network of claim 1 wherein said non-transport layer device is selected from the group consisting of a physical layer device, data link layer device, network layer device, session layer device, presentation layer device, and application layer device.

4. The system for adjusting the window size of a TCP packet on a packet network of claim 1 wherein said at least one of said receiving transport layer device and said transport layer device further comprises:

an input/output (I/O) unit configured to communicate with said data packets over said packet network;

a memory unit configured to store said network performance information indicative of bandwidth of said data packets including real-time content and total data packets communicated over said packet network.

5. The system for adjusting the window size of a TCP packet on a packet network of claim 1 wherein said network performance information is contained in IEEE standard 802.1AG data packets.

6. The system for adjusting the window size of a TCP packet on a packet network of claim 1 wherein said receiving transport layer device includes at least one module configured to:

count the total of said data packets being communicated via said packet network during a time period;

count said data packets including real-time content being communicated via said packet network during said time period;

determine bandwidth of said data packets being communicated via said packet network; and

determine bandwidth of said data packets including real-time content being communicated via said packet network.

7. The system for adjusting the window size of a TCP packet on a packet network of claim 1 wherein said sending transport layer device includes at least one module configured to:

count the total of said data packets being communicated via said packet network during a time period;

count said data packets including real-time content being communicated via said packet network during said time period;

determine bandwidth of said data packets being communicated via said packet network; and

determine bandwidth of said data packets including real-time content being communicated via said packet network.

8. The system for adjusting the window size of a TCP packet on a packet network of claim 1 wherein said sending transport layer device includes a ITU-T Y.1731 module configured to separately count total data packets and data packets including real-time content.

9. The system for adjusting the window size of a TCP packet on a packet network of claim 1 wherein said adjust said window size includes a decrease or an increase in the window size.

10. The system for adjusting the window size of a TCP packet on a packet network of claim 1 wherein said adjust said window size includes a decrease or an increase in a timer value, said timer value relating to the re-transmission of a portion of said data packets.

11. The system for adjusting the window size of a TCP packet on a packet network of claim 1 wherein said adjust the window size includes increasing or decreasing the number of octets contained in said data packets said receiving transport layer device is prepared to accept.

12. A method for adjusting the window size of a TCP packet on a packet network comprising:

determining network performance information between a sending transport layer device and a receiving transport layer device on said packet network;

concatenating said network performance information into data packets;

transmitting said data packets to a non-transport layer device;

utilizing non-transport layer protocols to forward said data packets to said sending transport layer device; and

adjusting said window size of said TCP packet based on said network performance information.

13. The method for adjusting the window size of a TCP packet on a packet network of claim 12 further comprising:

storing said network performance information indicative of bandwidth of said data packets including real-time content and total data packets communicated over said packet network.

14. The method for adjusting the window size of a TCP packet on a packet network of claim 12 wherein said network performance information is contained in IEEE standard 802.1AG data packets.

15. The method for adjusting the window size of a TCP packet on a packet network of claim 12 wherein said non-transport layer device is selected from the group consisting of a physical layer device, data link layer device, network layer device, session layer device, presentation layer device, and application layer device.

16. The method for adjusting the window size of a TCP packet on a packet network of claim 12 further comprising:

counting the total of said data packets being communicated via said packet network during a time period;

counting said data packets including real-time content being communicated via said packet network during said time period;

determining bandwidth of said data packets being communicated via said wireless router; and

determining bandwidth of said data packets including real-time content being communicated via said packet network.

17. The method for adjusting the window size of a TCP packet on a packet network of claim 12 further comprising:

determining whether at least one network performance information value of said packet network exceeds a predetermined threshold value;

communicating an instruction in an acknowledgement data packet to said receiving network element to adjust said window size of said data packet.

18. The method for adjusting the window size of a TCP packet on a packet network of claim 12 wherein one of said sending network element and receiving network element includes a ITU-T Y.1731 module configured to separately count total data packets and data packets including real-time content.

19. The method for adjusting the window size of a TCP packet on a packet network of claim 12 further comprising:

delaying said adjusting said window size to increase a wait versus transmit for an acknowledgement data packet to accommodate packet network link lengths.

20. A system for adjusting the window size of a TCP packet on a packet network comprising:

means for determining network performance information between a sending transport layer device and a receiving transport layer device on said packet network;

means for concatenating said network performance information into data packets;

means for transmitting said data packets to a non-transport layer device;

means for utilizing non-transport layer protocols to forward said data packets to said sending transport layer device; and

means for adjusting said window size of said TCP packet based on said network performance information.

21. The system for adjusting the window size of a TCP packet on a packet network of claim 20 further comprising:

means for storing said network performance information indicative of bandwidth of said data packets including real-time content and total data packets communicated over said packet network.

22. The system for adjusting the window size of a TCP packet on a packet network of claim 20 wherein said network performance information is contained in IEEE standard 802.1AG data packets.

23. The system for adjusting the window size of a TCP packet on a packet network of claim 20 wherein said non-transport layer device is selected from the group consisting of a physical layer device, data link layer device, network layer device, session layer device, presentation layer device, and application layer device.

24. The system for adjusting the window size of a TCP packet on a packet network of claim 20 further comprising:

means for counting the total of said data packets being communicated via said packet network during a time period;

means for counting said data packets including real-time content being communicated via said packet network during said time period;

means for determining bandwidth of said data packets being communicated via said wireless router; and

means for determining bandwidth of said data packets including real-time content being communicated via said packet network.

25. The system for adjusting the window size of a TCP packet on a packet network of claim 20 further comprising:

means for determining whether at least one network performance information value of said packet network exceeds a predetermined threshold value;

means for communicating an instruction in an acknowledgement data packet to said receiving network element to adjust said window size of said data packet.

26. The system for adjusting the window size of a TCP packet on a packet network of claim 20 wherein one of said sending network element and receiving network element includes a ITU-T Y.1731 module configured to separately count total data packets and data packets including real-time content.

27. The system for adjusting the window size of a TCP packet on a packet network of claim 20 further comprising:

means for delaying said adjusting said window size to increase a wait versus transmit for an acknowledgement data packet to accommodate packet network link lengths.