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:
Nov. 13, 2018

Filed:

Jun. 20, 2016
Applicant:

Huawei Technologies Canada Co., Ltd., Kanata, CA;

Inventors:

William Carson McCormick, Ottawa, CA;

Peter Ashwood-Smith, Gatineau, CA;

Francis Patrick Kelly, Cambridge, GB;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/18 (2006.01); H04L 12/723 (2013.01); H04L 12/753 (2013.01);
U.S. Cl.
CPC ...
H04L 12/189 (2013.01); H04L 45/48 (2013.01); H04L 45/50 (2013.01);
Abstract

Embodiments are provided for path flow scheduling of multicast traffic through a network. The paths for traffic flow are determined to optimize link utilization in terms of bandwidth and link capacity, and limit link cost. In an embodiment, a method is implemented for network flow scheduling. The method includes establishing, by a controller of a network, a multicast tree which includes a plurality of links for sending multicast traffic from a source to multiple destinations. The tree is established based on minimizing a number of links in the multicast tree. The tree is then adjusted by replacing one or more of the plurality of links to reduce the link utilization. The tree adjustment is repeated by further replacing one or more links in the multicast tree to further reduce the link utilization.


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