Patents by Inventor Liah Kor

Liah Kor 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).

  • Root cause analysis approach with candidate elimination using network virtualization
    Patent number: 8583779
    Abstract: Root cause analysis in a communication network includes eliminating candidate events using a computer-implemented method, comprising creating a virtual network model that describes nodes and links of the network at a plurality of time periods; receiving from the network a first event that indicates a problem in the network; receiving a set of second events comprising candidates for a root cause of the first event; determining a network topological indicator from the first event; determining a network implication of the first event based on the topological indicator; based on the network implication and a time value of the first event, retrieving data from the virtual network model that indicates a path between nodes associated with the first event at a time at which the first event occurred; removing, from the set of second events, all events that are not on the path between devices associated with the first event.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: November 12, 2013
    Assignee: Cisco Technology, Inc.
    Inventors: Gil Meir, Zohar Etzioni, Gadi Lifshitz, Liah Kor
  • Root cause analysis approach with candidate elimination using network virtualization
    Publication number: 20080114581
    Abstract: Root cause analysis in a communication network includes eliminating candidate events using a computer-implemented method, comprising creating a virtual network model that describes nodes and links of the network at a plurality of time periods; receiving from the network a first event that indicates a problem in the network; receiving a set of second events comprising candidates for a root cause of the first event; determining a network topological indicator from the first event; determining a network implication of the first event based on the topological indicator; based on the network implication and a time value of the first event, retrieving data from the virtual network model that indicates a path between nodes associated with the first event at a time at which the first event occurred; removing, from the set of second events, all events that are not on the path between devices associated with the first event.
    Type: Application
    Filed: June 21, 2007
    Publication date: May 15, 2008
    Inventors: Gil Meir, Zohar Etzioni, Gadi Lifshitz, Liah Kor