Patents by Inventor Todd Defilippi

Todd Defilippi 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).

  • Handling bandwidth reservations with segment routing and centralized PCE under real-time topology changes
    Patent number: 11757757
    Abstract: Systems and methods include receiving a request for a service in a Segment Routing network; determining an intended path for the service, provisioning a head-end node with a Segment Identifier (SID) list for the intended path, and reserving bandwidth for the service on the intended path; monitoring the Segment Routing network; and responsive to a condition determined based on the monitoring, updating the SID list for the service. The condition can include a current path for the service in the Segment Routing network differing from a provisioned path in the Segment Routing network. The condition can be based on any of a failure in the Segment Routing network, a topology change in the Segment Routing network, bandwidth changes in the Segment Routing network, an optimization timer, and input from an operator.
    Type: Grant
    Filed: September 30, 2021
    Date of Patent: September 12, 2023
    Assignee: Ciena Corporation
    Inventors: Cengiz Alaettinoglu, Todd Defilippi, Amal Karboubi
  • Handling bandwidth reservations with Segment Routing and Centralized PCE under real-time topology changes
    Publication number: 20230098528
    Abstract: Systems and methods include receiving a request for a service in a Segment Routing network; determining an intended path for the service, provisioning a head-end node with a Segment Identifier (SID) list for the intended path, and reserving bandwidth for the service on the intended path; monitoring the Segment Routing network; and responsive to a condition determined based on the monitoring, updating the SID list for the service. The condition can include a current path for the service in the Segment Routing network differing from a provisioned path in the Segment Routing network. The condition can be based on any of a failure in the Segment Routing network, a topology change in the Segment Routing network, bandwidth changes in the Segment Routing network, an optimization timer, and input from an operator.
    Type: Application
    Filed: September 30, 2021
    Publication date: March 30, 2023
    Inventors: Cengiz Alaettinoglu, Todd Defilippi, Amal Karboubi