Patents by Inventor Dar-Hsin Dustin Wu

Dar-Hsin Dustin Wu 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 and apparatus for tracking layer-2 (L2) resource of a switch
    Patent number: 8045474
    Abstract: A method and apparatus for tracking at least one Layer-2 (L2) resource of a network device is provided. The method includes monitoring software operations on the L2 resource. The method further includes monitoring the state of the L2 resource in a corresponding hardware device (e.g., the network device). The L2 resource may be at least one of a Media Access Control (MAC) address, a Virtual Local Area Network (VLAN) identifier, a MAC address, and a VLAN identifier pair.
    Type: Grant
    Filed: January 26, 2005
    Date of Patent: October 25, 2011
    Assignee: Cisco Technology, Inc.
    Inventors: Ravikanth Samprathi, Dar-Hsin Dustin Wu, Suran De Silva