Patents by Inventor Catherine Ferraro

Catherine Ferraro has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Providing high availability in a software defined network
    Patent number: 10673957
    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.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: June 2, 2020
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Simon Tse, Alvin Goddard, Catherine Ferraro, Gagan Choudhury, Narayan Padi, Lynn Rivera
  • PROVIDING HIGH AVAILABILITY IN A SOFTWARE DEFINED NETWORK
    Publication number: 20200007629
    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.
    Type: Application
    Filed: June 28, 2018
    Publication date: January 2, 2020
    Inventors: Simon Tse, Alvin Goddard, Catherine Ferraro, Gagan Choudhury, Narayan Padi, Lynn Rivera