Bandwith sentinel

• US 10,412,006 B2
• Filed: 01/23/2018
• Issued: 09/10/2019
• Est. Priority Date: 07/10/2009
• Status: Active Grant

• Current Assignee: Extreme Networks, Inc.
• Original Assignee: Aerohive Networks Incorporated (Extreme Networks, Inc.)
• Inventors: Wang, Huizhao, Liu, Changming, Wu, Peter
• Primary Examiner(s): Sheikh, Ayaz R
• Assistant Examiner(s): Hampton, Tarell A
• Application Number:
  US15/878,354
• Publication Number:
  US 20180152380A1
• Time in Patent Office: 595 Days
• Field of Search: None
• CPC Class Codes: H04L 47/11 Identifying congestion
• CPC Class Codes: H04L 47/125 by balancing the load, e.g. traffic engineering
• CPC Class Codes: H04L 47/30 in combination with information about buffer occupancy at either end or at transit nodes
• CPC Class Codes: H04W 28/0284 detecting congestion or overload during communication monitoring arrangements H04L43/00
• CPC Class Codes: H04W 8/04 Registration at HLR or HSS [Home Subscriber Server]

Abstract

Minimum guaranteed wireless network bandwidth is provided to client network devices by monitoring the performance of network connections to identify client network devices experiencing network congestion. Congested network connections are then analyzed to determine the source of the network congestion. Depending upon the source of the network congestion, an embodiment of the invention may undertake steps to either improve the quality of the network connection or to mitigate the impact of this network connection on other network connections. High quality network connections may be allocated additional bandwidth, airtime, or other resources to reduce the network congestion. Low quality network connections are not allocated additional bandwidth, airtime, or other resources. Instead, the impact of this network connection on the other network connections is mitigated. Additionally, the low quality network connection may be transferred to another wireless networking device that may be able to provide a better quality network connection.

Claims

1. A method for configuring a network connection, the method comprising:

determining a first wireless network connection between a wireless network device and a client network device, as a congested wireless network connection;

determining a first quality score for the first wireless network connection based on one or more wireless network connection attributes of the first wireless network connection;

classifying the first wireless network connection as a first quality connection based on comparison of the first quality score with a first benchmark quality score;

determining a second quality score for a second wireless network connection between the wireless network device and another client network device based on one or more wireless network connection attributes of the second wireless network connection;

classifying the second wireless network connection as a second quality connection better than the first quality connection based on comparison of the second quality score with a second benchmark quality score that is different from the first benchmark quality score;

upon classification of the first wireless network connection as the first quality connection and the second wireless network connection as the second quality connection, allocating additional bandwidth to the second wireless network connection, and causing another wireless network device to provide a wireless network connection to the client network device.

2. The method of claim 1, wherein the first quality connection is associated with network congestion caused by at least one of high interference, low signal strength, and a mis-configuration of the client network device.

3. The method of claim 1, wherein the one or more wireless network connection attributes of the first and second wireless network connections include one or more of receiving bit rate usage, transmission bit rate usage, transmission retries, receiving retries, received signal strength indication, and wireless network interface type.

4. The method of claim 1, further comprising, upon classification of the first wireless network connection as the first quality connection and the second wireless network connection as the second quality connection, de-associating the wireless network device from the first wireless network connection.

5. The method of claim 1, further comprising determining the second wireless network connection as a congested wireless network connection, wherein upon determining that the second wireless network connection is a congested wireless network connection, the second quality score is determined.

6. The method of claim 1, wherein a token bucket for tokens representing queued packets is assigned to each of the first and second wireless network connections, and the additional bandwidth is allocated to the second wireless network connection by increasing a size of the token bucket assigned to the second wireless network connection.

7. The method of claim 1, wherein the additional bandwidth is allocated to the second wireless network connection such that a bandwidth of the second wireless network connection is greater than a minimum guaranteed wireless network bandwidth.

8. The method of claim 1, wherein the wireless network device and said another wireless network device both comprise a wireless access point.

9. A wireless network device comprising:

one or more processors;

memory storing instructions, when executed, configured to cause the one or more processors to;

determine a first wireless network connection between the wireless network device and a client network device, as a congested wireless network connection;

determine a first quality score for the first wireless network connection based on one or more wireless network connection attributes of the first wireless network connection;

classify the first wireless network connection as a first quality connection based on comparison of the first quality score with a first benchmark quality score;

determine a second quality score for a second wireless network connection between the wireless network device and another client network device based on one or more wireless network connection attributes of the second wireless network connection;

classify the second wireless network connection as a second quality connection better than the first quality connection based on comparison of the second quality score with a second benchmark quality score that is different from the first benchmark quality score;

upon classification of the first wireless network connection as the first quality connection and the second wireless network connection as the second quality connection, allocate additional bandwidth to the second wireless network connection, and cause another wireless network device to provide a wireless network connection to the client network device.

10. The wireless network device of claim 9, wherein the first quality connection is associated with network congestion caused by at least one of high interference, low signal strength, and a mis-configuration of the client network device.

11. The wireless network device of claim 9, wherein the one or more wireless network connection attributes of the first and second wireless network connections include one or more of receiving bit rate usage, transmission bit rate usage, transmission retries, receiving retries, received signal strength indication, and wireless network interface type.

12. The wireless network device of claim 9, wherein, when executed, the instructions are further configured to cause the one or more processors to de-associate the wireless network device from the first wireless network connection, upon classification of the first wireless network connection as the first quality connection and the second wireless network connection as the second quality connection.

13. The wireless network device of claim 9, wherein, when executed, the instructions are further configured to determine the second wireless network connection as a congested wireless network connection, and determine the second quality score upon determining that the second wireless network connection is a congested wireless network connection.

14. The wireless network device of claim 9, wherein, when executed, the instructions are further configured to assign a token bucket for tokens representing queued packets to each of the first and second wireless network connections, and allocate the additional bandwidth to the second wireless network connection by increasing a size of the token bucket assigned to the second wireless network connection.

15. The wireless network device of claim 9, wherein the additional bandwidth is allocated to the second wireless network connection such that a bandwidth of the second wireless network connection is greater than a minimum guaranteed wireless network bandwidth.

16. A system comprising:

means for determining a first wireless network connection between a wireless network device and a client network device, as a congested wireless network connection;

means for determining a first quality score for the first wireless network connection based on one or more wireless network connection attributes of the first wireless network connection;

means for classifying the first wireless network connection as a first quality connection based on comparison of the first quality score with a first benchmark quality score;

means for determining a second quality score for a second wireless network connection between the wireless network device and another client network device based on one or more wireless network connection attributes of the second wireless network connection;

means for classifying the second wireless network connection as a second quality connection better than the first quality connection based on comparison of the second quality score with a second benchmark quality score that is different from the first benchmark quality score;

means for allocating additional bandwidth to the second wireless network connection, and causing another wireless network device to provide a wireless network connection to the client network device, upon classification of the first wireless network connection as the first quality connection and the second wireless network connection as the second quality connection.

17. The system of claim 16, wherein the first quality connection is associated with network congestion caused by at least one of high interference, low signal strength, and a mis-configuration of the client network device.

18. The system of claim 16, wherein the one or more wireless network connection attributes of the first and second wireless network connections include one or more of receiving bit rate usage, transmission bit rate usage, transmission retries, receiving retries, received signal strength indication, and wireless network interface type.

19. The system of claim 16, wherein a token bucket for tokens representing queued packets is assigned to each of the first and second wireless network connections, and the additional bandwidth is allocated to the second wireless network connection by increasing a size of the token bucket assigned to the second wireless network connection.

20. The system of claim 16, wherein the wireless network device and said another wireless network device both comprise a wireless access point.