Patents by Inventor Eden Tan

Eden Tan 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).

  • Systems and methods for detecting and resolving split-controller or split-stack conditions in port-extended networks
    Patent number: 9807051
    Abstract: A method for resolving split conditions in a port-extended network comprises receiving first information indicative of a first MAC address of a first controller on a first fabric link and second information indicative of a second MAC address of a second controller on a second fabric link. The method may also include determining that the first MAC address differs from the second MAC address and responsively determining that one of the first MAC address or the second MAC address was previously associated with a primary controller of the port-extended network. One of the first controller or the second controller is designated as the primary controller of the port-extended network based on the determination that one of the first MAC address or the second MAC address was previously associated with the primary controller.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: October 31, 2017
    Assignee: Cisco Technology, Inc.
    Inventors: Subrat Mohanty, Manpreet Sing Sandhu, James Cameron Gibson, Abilash Menon, Ganesh Srinivasa Bhat, Eden Tan
  • System and method for detecting and recovering from virtual switch link failures
    Patent number: 7639605
    Abstract: A system and method detects and responds to failures occurring in a virtual switch. The virtual switch is formed from two or more physical switches interconnected by a Virtual Switch Link (VSL). One physical switch is elected the Master, and it executes a link aggregation protocol for the virtual switch. If the VSL fails, one of the other physical switches assumes that it should become the Master for the virtual switch, and it begins executing the link aggregation protocol. By adding information unique to the physical switches in the control packets of the link aggregation protocol, remote switches can identify when the VSL fails, and report this condition to the original Master. In response, the original Master or the new Master takes corrective action.
    Type: Grant
    Filed: February 8, 2006
    Date of Patent: December 29, 2009
    Assignee: Cisco Technology, Inc.
    Inventors: Manoj T. Narayanan, Hemant K. Hebbar, Vinayakumar V. Parameswarannair, Eden Tan, Michael R. Smith, Norman W. Finn
  • System and method for detecting and recovering from virtual switch link failures
    Publication number: 20070183313
    Abstract: A system and method detects and responds to failures occurring in a virtual switch. The virtual switch is formed from two or more physical switches interconnected by a Virtual Switch Link (VSL). One physical switch is elected the Master, and it executes a link aggregation protocol for the virtual switch. If the VSL fails, one of the other physical switches assumes that it should become the Master for the virtual switch, and it begins executing the link aggregation protocol. By adding information unique to the physical switches in the control packets of the link aggregation protocol, remote switches can identify when the VSL fails, and report this condition to the original Master. In response, the original Master or the new Master takes corrective action.
    Type: Application
    Filed: February 8, 2006
    Publication date: August 9, 2007
    Inventors: Manoj Narayanan, Hemant Hebbar, Vinayakumar Parameswarannair, Eden Tan, Michael Smith, Norman Finn