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:
Jun. 02, 2020
Filed:
Jun. 28, 2018
At&t Intellectual Property I, L.p., Atlanta, GA (US);
Simon Tse, Holmdel, NJ (US);
Alvin Goddard, Kendall Park, NJ (US);
Catherine Ferraro, Howell, NJ (US);
Gagan Choudhury, Jackson, NJ (US);
Narayan Padi, Cedar Knolls, NJ (US);
Lynn Rivera, Leesburg, VA (US);
AT&T Intellectual Property I, L.P., Atlanta, GA (US);
Abstract
In one example, a method for monitoring the state and health of a centralized software defined networking controller includes detecting, by a standby software defined networking controller, when a number of path computation client sessions reported by an active software defined networking controller fails to match an expected number; verifying, by the standby software defined networking controller after expiration of a predefined delay implemented after the detecting, that the number of path computation client sessions reported by the active software defined networking controller still fails to match the expected number; and assuming, by the standby software defined networking controller after the verifying, a role of the active software defined networking controller.