Patents by Inventor Raghunath Balakrishna

Raghunath Balakrishna 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).

  • Synchronizing state information between control units
    Patent number: 8799511
    Abstract: Techniques are described for synchronizing state information between a plurality of control units. A router, for example, is described that includes a primary control unit and a standby control unit. The primary control unit maintains router resources to ensure operation of the router. To ensure operation, the primary control unit receives state information from the router resources and maintains the state information for consumers, i.e. router resources that require or “consume” state information. Prior to updating the consumers with the state information, the primary control unit synchronizes the state information with the standby control unit. In the event the primary control unit fails, the standby control unit assumes control of the router resources. Upon assuming control, the standby control unit resumes updating the consumers with state information without having to “relearn” state information, e.g., by way of power cycling the router resources to a known state.
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: August 5, 2014
    Assignee: Juniper Networks, Inc.
    Inventors: Raghunath Balakrishna, Shine-chu Wang, Umesh Krishnaswamy, Bharani Chadalavada, Sandeep Kumar, Raj Tuplur, Rajagopalan Sivaramakrishnan
  • Synchronizing state information between control units
    Patent number: 7739403
    Abstract: Techniques are described for synchronizing state information between a plurality of control units. A router, for example, is described that includes a primary control unit and a standby control unit. The primary control unit maintains router resources to ensure operation of the router. To ensure operation, the primary control unit receives state information from the router resources and maintains the state information for consumers, i.e. router resources that require or “consume” state information. Prior to updating the consumers with the state information, the primary control unit synchronizes the state information with the standby control unit. In the event the primary control unit fails, the standby control unit assumes control of the router resources. Upon assuming control, the standby control unit resumes updating the consumers with state information without having to “relearn” state information, e.g., by way of power cycling the router resources to a known state.
    Type: Grant
    Filed: October 3, 2003
    Date of Patent: June 15, 2010
    Assignee: Juniper Networks, Inc.
    Inventors: Raghunath Balakrishna, Shine-chu Wang, Umesh Krishnaswamy, Bharani Chadalavada, Sandeep Kumar, Raj Tuplur, Rajagopalan Sivaramakrishnan