Patents by Inventor Vinayakumar V. Parameswarannair

Vinayakumar V. Parameswarannair 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).

  • 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