Efficient bandwidth utilization when streaming data over multiple network interfaces

• US 8,068,514 B2
• Filed: 05/22/2009
• Issued: 11/29/2011
• Est. Priority Date: 05/22/2009
• Status: Expired due to Fees

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Riggert, Eric, Martinez, Martin
• Primary Examiner(s): Jung; Min
• Application Number:
  US12/471,319
• Publication Number:
  US 20100296521A1
• Time in Patent Office: 921 Days
• Field of Search: None
• US Class Current: 370/468
• CPC Class Codes: H04L 12/1881 with schedule organisation, e.g. priority, sequence management
• CPC Class Codes: H04L 45/245 Link aggregation, e.g. trunking
• CPC Class Codes: H04L 47/125 by balancing the load, e.g. traffic engineering
• CPC Class Codes: H04L 47/2416 Real-time traffic
• CPC Class Codes: H04L 47/25 with rate being modified by the source upon detecting a change of network conditions
• CPC Class Codes: H04L 5/0064 Rate requirement of the data, e.g. scalable bandwidth, data priority

Abstract

Adjusting utilization of network bandwidth by a non-time critical data stream being sent from a sending endpoint to a receiving endpoint, wherein both of the sending endpoint and the receiving endpoint each have multiple physical interfaces connecting the sending endpoint and the receiving endpoint to multiple networks. The non-time critical data stream is split and sent over multiple physical interfaces. A determination is made as to whether at least one of the multiple physical interfaces of the sending endpoint is sending or receiving a time critical or a near-time critical data stream, and a notification is received by the sending endpoint in a case that at least one of the multiple physical interfaces of the receiving endpoint is sending or receiving a time critical or a near-time critical data stream. The network bandwidth utilization of at least one of the multiple physical interfaces of the sending endpoint is then adjusted in accordance with the determination and/or the notification.

Claims

1. A method for adjusting network bandwidth, the network bandwidth being utilized by a non-time critical data stream being sent from a sending endpoint to a receiving endpoint, wherein both of the sending endpoint and the receiving endpoint each have multiple physical interfaces connecting the sending endpoint and the receiving endpoint to multiple networks, respectively, wherein the non-time critical data stream is split into sub-streams and sent over multiple physical interfaces, and wherein the sending endpoint performs the method, the method comprising:

determining if at least one of the multiple physical interfaces of the sending endpoint is also sending or receiving a time critical data stream or a near-time critical data stream;

receiving a notification from the receiving endpoint in a case where at least one of the multiple physical interfaces of the receiving endpoint is determined to be sending or receiving a time critical data stream or a near-time critical data stream; and

adjusting the network bandwidth utilization of at least one of the multiple physical interfaces of the sending endpoint in accordance with the determination and/or the notification.

2. The method according to claim 1, wherein adjusting the network bandwidth utilization of at least one of the multiple physical interfaces of the sending endpoint includes automatically reducing the network bandwidth utilization of each of the multiple physical interfaces of the sending endpoint sending or receiving a non-time critical data stream to a percentage smaller than a maximum network bandwidth utilization of the respective physical interfaces.

3. The method according to claim 1, wherein the notification includes an indication of the ones of the multiple physical interfaces of the receiving endpoint also receiving or sending a time critical or a near-time critical data stream, and wherein adjusting the network bandwidth utilization is performed in accordance with the notification in a case where there is a conflict between the non-time critical data stream and the time critical or near-time critical data stream on one of the multiple networks or multiple physical interfaces of the receiving endpoint.

4. The method according to claim 1, wherein if at least one of the multiple physical interfaces of the sending endpoint is determined to also be sending or receiving a time critical data stream or a near-time critical data stream, or if at least one of the multiple physical interfaces of the receiving endpoint is determined to also be sending or receiving a time critical data stream or a near-time critical data stream, then adjusting the network bandwidth utilization comprises:

reducing the network bandwidth utilization of the multiple physical interfaces of the sending endpoint sending the non-time critical data stream in proportion to an amount of network bandwidth sufficient for the multiple physical interfaces of the sending endpoint and the receiving endpoint to send and/or receive a time critical data stream or a near-time critical data stream.

5. The method according to claim 4, wherein adjusting the network bandwidth utilization further comprises:

in a case where the multiple physical interfaces of the sending endpoint are determined to no longer be sending or receiving a time critical or a near-time critical data stream, and where the multiple physical interfaces of the receiving endpoint are determined to no longer be sending or receiving a time critical or a near-time critical data stream, increasing the network bandwidth utilization of each of the multiple physical interfaces of the sending endpoint in proportion to an amount that each of such physical interfaces was reduced.

6. The method according to claim 1, wherein if at least one of the multiple physical interfaces of the sending endpoint is determined to also be sending or receiving a time critical data stream or a near-time critical data stream, or if at least one of the multiple physical interfaces of the receiving endpoint is determined to also be sending or receiving a time critical data stream or a near-time critical data stream, then adjusting the network bandwidth utilization comprises:

reducing the network bandwidth utilization of the multiple physical interfaces of the sending endpoint sending the non-time critical data stream; and

increasing the network bandwidth utilization of the remaining multiple physical interfaces of the sending endpoint in equal proportion to the reduction of the network bandwidth utilization of the multiple physical interfaces of the sending endpoint sending the non-time critical data stream.

7. The method according to claim 6, wherein adjusting the network bandwidth utilization further comprises:

in a case where the multiple physical interfaces of the sending endpoint are determined to no longer be sending or receiving a time critical data stream or a near-time critical data stream, and where the multiple physical interfaces of the receiving endpoint are determined to no longer be sending or receiving a time critical data stream or a near-time critical data stream, increasing the network bandwidth utilization of each of the multiple physical interfaces of the sending endpoint in proportion to an amount that each of such physical interfaces was reduced, and reducing the network bandwidth utilization of each of the multiple physical interfaces of the sending endpoint in proportion to an amount that each of such physical interfaces was increased.

8. The method according to claim 6, wherein adjusting the network bandwidth utilization further comprises:

in a case where the multiple physical interfaces of the sending endpoint are determined to no longer be sending or receiving a time critical data stream or a near-time critical data stream, and where the multiple physical interfaces of the receiving endpoint are determined to no longer be sending or receiving a time critical data stream or a near-time critical data stream, readjusting the network bandwidth utilization of each of the multiple physical interfaces of the sending endpoint sending a non-time critical data stream in accordance with current network conditions.

9. The method according to claim 1, wherein if at least one of the multiple physical interfaces of the sending endpoint is determined to also be sending or receiving a time critical data stream or a near-time critical data stream, or if at least one of the multiple physical interfaces of the receiving endpoint is determined to also be sending or receiving a time critical data stream or a near-time critical data stream, then adjusting the network bandwidth utilization comprises:

reducing the network bandwidth utilization of the multiple physical interfaces of the sending endpoint sending the non-time critical data stream.

10. The method according to claim 9, wherein the network bandwidth utilization of the multiple physical interfaces of the sending endpoint sending the non-time critical data stream is reduced in order of multiple physical interfaces sending a non-time critical data stream, a near-time critical data stream, and a time critical data stream.

11. The method according to claim 9, wherein adjusting the network bandwidth utilization further comprises:

in a case where the multiple physical interfaces of the sending endpoint are determined to no longer be sending or receiving a time critical data stream or a near-time critical data stream, and where the multiple physical interfaces of the receiving endpoint are determined to no longer be sending or receiving a time critical data stream or a near-time critical data stream, increasing the network bandwidth utilization of the multiple physical interfaces of the sending endpoint in proportion to an amount that each of such physical interfaces was reduced.

12. The method according to claim 1, wherein in said method the sending endpoint further performs:

in a case where none of the multiple physical interfaces of the sending endpoint and none of the multiple physical interfaces of the receiving endpoint are determined to be sending or receiving a time critical data stream or a near-time critical data stream, measuring network performance for data sent between multiple physical interfaces of the sending endpoint and multiple physical interfaces of the receiving endpoint; and

adjusting the network bandwidth utilization of at least one of the multiple physical interfaces of the sending endpoint in accordance with the measured network performance.

13. The method according to claim 12, wherein the network performance measured is network congestion and/or latency.

14. The method according to claim 12, wherein if a change in network performance is measured, then adjusting the network bandwidth utilization comprises:

reducing the network bandwidth utilization of the multiple physical interfaces of the sending endpoint sending a non-time critical data stream in proportion to the change in network performance.

15. The method according to claim 12, wherein if a change in network performance is measured, then adjusting the network bandwidth utilization comprises:

reducing the network bandwidth utilization of the multiple physical interfaces of the sending endpoint sending a non-time critical data stream; and

increasing the network bandwidth utilization of the remaining multiple physical interfaces of the sending endpoint in equal proportion to the reduction of the network bandwidth utilization of the multiple physical interfaces of the sending endpoint sending the non-time critical data stream.

16. The method according to claim 12, wherein if a change in network performance is measured, then adjusting the network bandwidth utilization comprises:

reducing the network bandwidth utilization of the multiple physical interfaces of the sending endpoint sending the non-time critical data stream.

17. The method according to claim 1, wherein in said method the sending endpoint further performs:

in a case where an additional one or more of the multiple physical interfaces of the sending endpoint are determined to be sending or receiving a near-time critical data stream or a time critical data stream, and/or where an additional one or more of the multiple physical interfaces of the receiving endpoint are determined to be sending or receiving a near-time critical data stream or a time critical data stream, receiving a notification from the receiving endpoint of the additional one or more multiple physical interfaces of the receiving endpoint also receiving a time critical or a near-time critical data stream; and

further adjusting the network bandwidth utilization of at least one of the multiple physical interfaces of the sending endpoint in accordance with the additional determination and/or additional notification.

18. The method according to claim 1, wherein if at least one of the multiple physical interfaces of the sending endpoint is determined to also be sending or receiving a time critical data stream or a near-time critical data stream, or if at least one of the multiple physical interfaces of the receiving endpoint is determined to also be sending or receiving a time critical data stream or a near-time critical data stream, then adjusting the network bandwidth utilization comprises:

reducing the network bandwidth utilization of the multiple physical interfaces of the sending endpoint only sending the non-time critical data stream.

19. A method for adjusting utilization of network bandwidth, the network bandwidth being utilized by a non-time critical data stream being sent from a sending endpoint to a receiving endpoint, wherein both of the sending endpoint and the receiving endpoint each have multiple physical interfaces connecting the sending endpoint and the receiving endpoint to multiple networks, respectively, wherein the non-time critical data stream is split into sub-streams and sent over multiple physical interfaces, and wherein in said method the receiving endpoint performs:

determining if at least one of the multiple physical interfaces of the receiving endpoint is also sending or receiving a time critical data stream or a near-time critical data stream; and

in a case where at least one of the multiple physical interfaces of the receiving endpoint is determined to be sending or receiving a time critical data stream or a near-time critical data stream, notifying the sending endpoint of the ones of the multiple physical interfaces of the receiving endpoint also sending or receiving a time critical or a near-time critical data stream,

wherein the sending endpoint determines if at least one of the multiple physical interfaces of the sending endpoint is also sending or receiving a time critical data stream or a near-time critical data stream, and adjusts the network bandwidth utilization of at least one of the multiple physical interfaces of the sending endpoint in accordance with the determination and/or the notification.

20. A method according to claim 19, wherein in said method the receiving endpoint further performs:

in a case where an additional one or more of the multiple physical interfaces of the receiving endpoint are determined to be sending or receiving a near-time critical data stream or a time critical data stream, notifying the sending endpoint of the additional one or more multiple physical interfaces of the receiving endpoint also sending or receiving a time critical or a near-time critical data stream,

wherein if an additional one or more of the multiple physical interfaces of the sending endpoint are determined to be sending or receiving a near-time critical data stream or a time critical data stream, the network bandwidth utilization of at least one of the multiple physical interfaces of the sending endpoint is further adjusted in accordance with the additional determination and/or additional notification.

21. A method for adjusting utilization of network bandwidth, the network bandwidth being utilized by a non-time critical data stream being sent from a sending endpoint to a receiving endpoint, wherein both of the sending endpoint and the receiving endpoint each have multiple physical interfaces connecting the sending endpoint and the receiving endpoint to multiple networks, respectively, and wherein the non-time critical data stream is split into sub-streams and sent over multiple physical interfaces, the method comprising:

first determining if at least one of the multiple physical interfaces of the sending endpoint is also sending or receiving a time critical data stream or a near-time critical data stream;

second determining if at least one of the multiple physical interfaces of the receiving endpoint is also sending or receiving a time critical data stream or a near-time critical data stream;

in a case where at least one of the multiple physical interfaces of the receiving endpoint is determined to be sending or receiving a time critical data stream or a near-time critical data stream, notifying the sending endpoint of the ones of the multiple physical interfaces of the receiving endpoint also sending or receiving a time critical or a near-time critical data stream; and

adjusting the network bandwidth utilization of at least one of the multiple physical interfaces of the sending endpoint in accordance with the first determination and/or the notification.

22. A sending endpoint comprising:

a computer-readable memory constructed to store computer-executable process steps; and

a processor constructed to execute the computer-executable process steps stored in the memory,

wherein the process steps stored in the memory cause the processor to adjust network bandwidth utilized by a non-time critical data stream being sent from a sending endpoint to a receiving endpoint, wherein both of the sending endpoint and the receiving endpoint each have multiple physical interfaces connecting the sending endpoint and the receiving endpoint to multiple networks, respectively, wherein the non-time critical data stream is split into sub-streams and sent over multiple physical interfaces, and wherein the process steps stored in the memory include computer-executable process steps to;

determine if at least one of the multiple physical interfaces of the sending endpoint is also sending or receiving a time critical data stream or a near-time critical data stream;

receive a notification from the receiving endpoint in a case where at least one of the multiple physical interfaces of the receiving endpoint is determined to be sending or receiving a time critical data stream or a near-time critical data stream, wherein the notification includes the ones of the multiple physical interfaces of the receiving endpoint also sending or receiving a time critical or a near-time critical data stream; and

adjust the network bandwidth utilization of at least one of the multiple physical interfaces of the sending endpoint in accordance with the determination and/or the notification.

23. A receiving endpoint comprising:

a computer-readable memory constructed to store computer-executable process steps; and

a processor constructed to execute the computer-executable process steps stored in the memory,

wherein the process steps stored in the memory cause the processor to adjust network bandwidth utilized by a non-time critical data stream being sent from a sending endpoint to a receiving endpoint, wherein both of the sending endpoint and the receiving endpoint each have multiple physical interfaces connecting the sending endpoint and the receiving endpoint to multiple networks, respectively, wherein the non-time critical data stream is split into sub-streams and sent over multiple physical interfaces, and wherein the process steps stored in the memory include computer-executable process steps to;

determine if at least one of the multiple physical interfaces of the receiving endpoint is also sending or receiving a time critical data stream or a near-time critical data stream; and

in a case where at least one of the multiple physical interfaces of the receiving endpoint is determined to be sending or receiving a time critical data stream or a near-time critical data stream, notify the sending endpoint of the ones of the multiple physical interfaces of the receiving endpoint also sending or receiving a time critical or a near-time critical data stream,

wherein the sending endpoint determines if at least one of the multiple physical interfaces of the sending endpoint is also sending or receiving a time critical data stream or a near-time critical data stream, and adjusts the network bandwidth utilization of at least one of the multiple physical interfaces of the sending endpoint in accordance with the determination and/or the notification.

24. A non-transitory computer-readable memory medium on which is stored computer-executable process steps for causing a processor to adjust network bandwidth utilized by a non-time critical data stream being sent from a sending endpoint to a receiving endpoint, wherein both of the sending endpoint and the receiving endpoint each have multiple physical interfaces connecting the sending endpoint and the receiving endpoint to multiple networks, respectively, wherein the non-time critical data stream is split into sub-streams and sent over multiple physical interfaces, said process steps comprising:

determining if at least one of the multiple physical interfaces of the sending endpoint is also sending or receiving a time critical data stream or a near-time critical data stream;

receiving a notification from the receiving endpoint in a case where at least one of the multiple physical interfaces of the receiving endpoint is determined to be sending or receiving a time critical data stream or a near-time critical data stream, wherein the notification includes the ones of the multiple physical interfaces of the receiving endpoint also sending or receiving a time critical or a near-time critical data stream; and

adjusting the network bandwidth utilization of at least one of the multiple physical interfaces of the sending endpoint in accordance with the determination and/or the notification.

25. A non-transitory computer-readable memory medium on which is stored computer-executable process steps for causing a processor to adjust network bandwidth utilized by a non-time critical data stream being sent from a sending endpoint to a receiving endpoint, wherein both of the sending endpoint and the receiving endpoint each have multiple physical interfaces connecting the sending endpoint and the receiving endpoint to multiple networks, respectively, wherein the non-time critical data stream is split into sub-streams and sent over multiple physical interfaces, said process steps comprising:

determining if at least one of the multiple physical interfaces of the receiving endpoint is also sending or receiving a time critical data stream or a near-time critical data stream; and

in a case where at least one of the multiple physical interfaces of the receiving endpoint is determined to be sending or receiving a time critical data stream or a near-time critical data stream, notifying the sending endpoint of the ones of the multiple physical interfaces of the receiving endpoint also sending or receiving a time critical or a near-time critical data stream,

wherein the sending endpoint determines if at least one of the multiple physical interfaces of the sending endpoint is also sending or receiving a time critical data stream or a near-time critical data stream, and adjusts the network bandwidth utilization of at least one of the multiple physical interfaces of the sending endpoint in accordance with the determination and/or the notification.