Patents by Inventor Randy Hehui Zhang

Randy Hehui Zhang 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 system for autonomous discovery of colored interface mappings across routing and optical layers
    Patent number: 10447551
    Abstract: An interface mapping method includes obtaining, at a network controller, device information of network devices configured to be in communication with each other through an optical network. The network devices include a plurality of colored interfaces that support a range of wavelengths for communication in the optical network. Interface information of the colored interfaces of the network devices is obtained, and optical power information associated with each of the colored interfaces is obtained. Optical power margins for a transmitter interface of the colored interfaces. The transmitter interface is controlled to transmit a power sequence based on the optical power margins, and power readings are obtained from a receiver interface of the colored interfaces. A topology between the colored interfaces is discovered based on the power sequence and the power readings.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: October 15, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: Randy Hehui Zhang, Rajiv Asati, Gabriele Maria Galimberti, Errol Fenton Roberts, Walid Wakim