Patents by Inventor David D. Baukus

David D. Baukus 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 TCP connection protection switching
    Patent number: 6853617
    Abstract: If an active router Master Control Processor (MCP) fails, a backup MCP switches over without interrupting peer network router connections, because all previously established connection parameters are replicated on both MCPs. Once the MCP programs line cards, the packet forwarding modules and embedded system function without further involvement of the MCP until the next programming update. Messages flow through the backup MCP and then through the active MCP, which outputs messages through the backup MCP. Thus the backup MCP captures state changes before and after the active MCP. Both MCPs maintain replicated queues in which they store replicated messages awaiting processing or retransmission. If acknowledgment of receiving a transmitted message is received from a destination peer router, that message is deleted from both MCPs. If acknowledgment is not received within a predetermined interval, the stored message is retransmitted.
    Type: Grant
    Filed: May 9, 2001
    Date of Patent: February 8, 2005
    Assignee: Chiaro Networks, Ltd.
    Inventors: Thomas L. Watson, David D. Baukus, Ronald Paul Folkes, Lance Arnold Visser
  • System and method for TCP connection protection switching
    Publication number: 20020167952
    Abstract: If an active router Master Control Processor (MCP) fails, a backup MCP switches over without interrupting peer network router connections, because all previously established connection parameters are replicated on both MCPs. Once the MCP programs line cards, the packet forwarding modules and embedded system function without further involvement of the MCP until the next programming update. Messages flow through the backup MCP and then through the active MCP, which outputs messages through the backup MCP. Thus the backup MCP captures state changes before and after the active MCP. Both MCPs maintain replicated queues in which they store replicated messages awaiting processing or retransmission. If acknowledgment of receiving a transmitted message is received from a destination peer router, that message is deleted from both MCPs. If acknowledgment is not received within a predetermined interval, the stored message is retransmitted.
    Type: Application
    Filed: May 9, 2001
    Publication date: November 14, 2002
    Applicant: Chiaro Networks, Ltd.
    Inventors: Thomas L. Watson, David D. Baukus, Ronald Paul Folkes, Lance Arnold Visser