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.
Patent No.:
Date of Patent:
Jan. 26, 2021
Filed:
Mar. 14, 2019
Applicant:
Cisco Technology, Inc., San Jose, CA (US);
Inventors:
Assignee:
Cisco Technology, Inc., San Jose, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/24 (2006.01); H04L 12/44 (2006.01); H04L 12/703 (2013.01); H04L 29/12 (2006.01); H04L 12/751 (2013.01);
U.S. Cl.
CPC ...
H04L 41/12 (2013.01); H04L 12/44 (2013.01); H04L 41/0668 (2013.01); H04L 41/0816 (2013.01); H04L 45/02 (2013.01); H04L 45/28 (2013.01); H04L 61/2015 (2013.01);
Abstract
In one embodiment, a device in a mesh network rooted at a root node receives a subroot selection notification. The subroot selection notification indicates that the device should function as a root of a sub-directed acyclic graph (DAG) were a power outage to occur. The device determines that a power outage has occurred. The device forms, after determining that a power outage has occurred, a sub-DAG that is rooted at the device by establishing one or more other devices in the mesh network as routing children of the device in the sub-DAG. The device joins the sub-DAG to a DAG rooted at the root node.