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:
Mar. 02, 2021

Filed:

Feb. 13, 2019
Applicant:

Cisco Technology, Inc., San Jose, CA (US);

Inventors:

Huimin She, Shanghai, CN;

Feiliang Wang, Shanghai, CN;

Li Zhao, Shanghai, CN;

Chuanwei Li, Shanghai, CN;

Assignee:

CISCO TECHNOLOGY, INC., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/733 (2013.01); H04L 12/24 (2006.01); H04L 12/44 (2006.01); H04L 12/751 (2013.01); H04L 29/08 (2006.01); H04L 12/721 (2013.01);
U.S. Cl.
CPC ...
H04L 45/122 (2013.01); H04L 12/44 (2013.01); H04L 41/083 (2013.01); H04L 45/02 (2013.01); H04L 67/1042 (2013.01); H04L 45/123 (2013.01);
Abstract

In one embodiment, a method comprises determining, by a network device, a hop-by-hop path in a low-power and lossy network having a tree-based topology originated at a root network device, the hop-by-hop path comprising identified network devices for forwarding a data packet from a source network device to a destination device in the tree-based topology; and causing, by the network device, the destination device to initiate generation of a locally-optimized tree that bypasses the root network device and optimizes forwarding of the data packet from the source network device to the destination device, based on confined advertisements within the tree-based topology relative to the identified network devices.


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