Patents by Inventor Francois Billaut

Francois Billaut 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).

  • Method of managing malfunctions at router level, and a router
    Patent number: 7567506
    Abstract: This method of managing malfunctions in a telecommunications network is implemented in a router having a plurality of communication interfaces and a nominal operational routing plan that is duplicated on its interfaces. The method comprises the following steps that are performed during nominal operation: a step of calculating a secondary operational routing plan for degraded modes of operation; and a step of transferring secondary plans to each of the interfaces; and in the event of a malfunction being detected, a step of causing all of the interfaces to switch from the nominal plan to a secondary plan that corresponds to the degraded mode of operation that results from the detected malfunction.
    Type: Grant
    Filed: June 1, 2005
    Date of Patent: July 28, 2009
    Assignee: France Telecom
    Inventors: Marc Capelle, Francois Billaut, Bruno Decraene
  • Method of testing a router, and a test system
    Publication number: 20050286439
    Abstract: This method of testing a router in a test environment that is isolated from an operational telecommunications network comprises initially collecting data from a node of said operational network by copying data packets being conveyed thereby, and then: a step of modifying collected data packets, this step comprising at least one substep of replacing the identity data of the original senders and receivers of the collected packets with identification data for senders and receivers in the test environment; and a step of testing the router and comprising at least one substep of routing modified data packets via said router in said test environment.
    Type: Application
    Filed: June 8, 2005
    Publication date: December 29, 2005
    Inventors: Marc Capelle, Sovatha Chou, Francois Billaut
  • Method of managing malfunctions at router level, and a router
    Publication number: 20050270971
    Abstract: This method of managing malfunctions in a telecommunications network is implemented in a router having a plurality of communication interfaces and a nominal operational routing plan that is duplicated on its interfaces. The method comprises the following steps that are performed during nominal operation: a step of calculating a secondary operational routing plan for degraded modes of operation; and a step of transferring secondary plans to each of the interfaces; and in the event of a malfunction being detected, a step of causing all of the interfaces to switch from the nominal plan to a secondary plan that corresponds to the degraded mode of operation that results from the detected malfunction.
    Type: Application
    Filed: June 1, 2005
    Publication date: December 8, 2005
    Inventors: Marc Capelle, Francois Billaut, Bruno Decraene