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:
Sep. 19, 2023
Filed:
Dec. 01, 2020
Applicant:
Schweitzer Engineering Laboratories, Inc., Pullman, WA (US);
Inventors:
Colin Gordon, Katy, TX (US);
William Herrmann, Pullman, WA (US);
Assignee:
Schweitzer Engineering Laboratories, Inc., Pullman, WA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/32 (2006.01); H04L 9/08 (2006.01);
U.S. Cl.
CPC ...
H04L 9/3242 (2013.01); H04L 9/0819 (2013.01); H04L 9/0838 (2013.01); H04L 9/0866 (2013.01); H04L 9/3297 (2013.01);
Abstract
A key server may establish an initial media access security (MACsec) connectivity association (CA) between a set of devices on a communication network of a power system. The key server may identify a device in the set of devices on the initial CA as a suspect device. The key server may communicate a new connectivity association key (CAK) of an independent CA to one or more other devices in the set of devices to cause the one or more other devices to join an independent CA without the suspect device.