Patents by Inventor Ornan A. Gerstal

Ornan A. Gerstal 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).

  • Optimization mechanism for use with an optical control plane in a DWDM network
    Patent number: 8184971
    Abstract: Methods and apparatus for efficiently utilizing an optical control plane distinct from an electronic control plane to facilitate the setup of paths in a dense wave division multiplexing network are disclosed. According to one aspect of the present invention, a method includes receiving a probe arranged determine the optical feasibility of a first path, and determining a probability of success associated with the probe. The probability of success indicates a likelihood that the probe will be successfully routed on the first path to the destination, and is associated with a particular wavelength. A second path on which to route the probe is dynamically identified if the probability indicates a low likelihood of successful routing on the first path. Finally, the method includes determining if a notification associated with the probe has been received, and altering the probability of success based on the notification if the notification has been received.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: May 22, 2012
    Assignee: Cisco Technology, Inc.
    Inventors: Jean Philippe Vasseur, Ornan Gerstal, Gabriele Maria Galimberti, Giovanni Martinelli
  • Optimization mechanism for use with an optical control plane in a DWDM network
    Publication number: 20090162060
    Abstract: Methods and apparatus for efficiently utilizing an optical control plane distinct from an electronic control plane to facilitate the setup of paths in a dense wave division multiplexing network are disclosed. According to one aspect of the present invention, a method includes receiving a probe arranged determine the optical feasibility of a first path, and determining a probability of success associated with the probe. The probability of success indicates a likelihood that the probe will be successfully routed on the first path to the destination, and is associated with a particular wavelength. A second path on which to route the probe is dynamically identified if the probability indicates a low likelihood of successful routing on the first path. Finally, the method includes determining if a notification associated with the probe has been received, and altering the probability of success based on the notification if the notification has been received.
    Type: Application
    Filed: December 19, 2007
    Publication date: June 25, 2009
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Jean Philippe Vasseur, Ornan Gerstal, Gabriele Maria Galimberti, Giovanni Martinelli
  • Link discovery, verification, and failure isolation in an optical communication system
    Publication number: 20040008988
    Abstract: Automatic discovery and verification of optical communication links as well as isolation of link failures in an optical communication system.
    Type: Application
    Filed: September 30, 2002
    Publication date: January 15, 2004
    Inventors: Ornan A. Gerstal, Humair Raza, Rajiv Ramaswami, Babu O. Narayanan, Robert Ward, Robert Keys, David Park, Vasant Sahay, Osama Aboul-Magd, Frederic Simard