The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 05, 2018

Filed:

May. 11, 2016
Applicant:

Algoblu Holdings Limited, Grand Cayman, KY;

Inventor:

Ming Li, Beijing, CN;

Assignee:

Algoblu Holdings Limited, Grand Cayman, KY;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/741 (2013.01); H04L 12/26 (2006.01); H04L 12/733 (2013.01); H04L 12/947 (2013.01); H04L 29/12 (2006.01); H04L 29/06 (2006.01); H04L 12/46 (2006.01);
U.S. Cl.
CPC ...
H04L 45/74 (2013.01); H04L 43/0829 (2013.01); H04L 45/20 (2013.01); H04L 49/25 (2013.01); H04L 61/2007 (2013.01); H04L 69/16 (2013.01); H04L 12/4641 (2013.01);
Abstract

System and method of dynamically switching among multiple WANs for data transmission to and from a LAN based on real-time network performance. Each WAN may be owned by a respective Internet Service Provider (ISP) of the LAN. A switching device coupled between the WAN and the LAN evaluates the real-time network performance of the current WAN used for data transmission between a LAN user device and a target IP address. If the network performance deteriorates, the switching device may select a different WAN for the data transmission according to a set of service quality policies. The switching device may maintain a flow table to control data routing and communicate with other components in the LAN in compliance with the OpenFlow protocol.


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