Patents by Inventor Chakravarthi S. Chigurupati

Chakravarthi S. Chigurupati 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).

  • Stateful switching between reliable transport modules for communicating with an external peer without losing the transport layer connection
    Patent number: 8467383
    Abstract: Disclosed are, inter alia, methods, apparatus, and means for stateful switching between reliable transport modules for communicating with an external peer without losing the transport layer connection. Primary and standby reliable transport protocol modules each maintain state concerning the reliable transport connection (e.g., data, segmentation, acknowledgements) such that if the primary or standby reliable transport protocol module fails, the other can resume by itself such that the communication with the peer transport application does not need to be restarted. Also, by the communications subsystem of a device providing copies of received reliable transport protocol messages directly to both the primary and standby reliable transport protocol modules, upon failover, the communications subsystem does not need to be reconfigured for resuming operations as, for example, the standby reliable transport protocol module will already be receiving these packets.
    Type: Grant
    Filed: May 23, 2007
    Date of Patent: June 18, 2013
    Assignee: Cisco Technology, Inc.
    Inventors: Chakravarthi S. Chigurupati, Tejas H. Rajkotia, Bharat M. Bhojwani, Pradeep Singh, Dongling Duan
  • Stateful switching between reliable transport modules for communicating with an external peer without losing the transport layer connection
    Publication number: 20080291906
    Abstract: Disclosed are, inter alia, methods, apparatus, and means for stateful switching between reliable transport modules for communicating with an external peer without losing the transport layer connection. Primary and standby reliable transport protocol modules each maintain state concerning the reliable transport connection (e.g., data, segmentation, acknowledgements) such that if the primary or standby reliable transport protocol module fails, the other can resume by itself such that the communication with the peer transport application does not need to be restarted. Also, by the communications subsystem of a device providing copies of received reliable transport protocol messages directly to both the primary and standby reliable transport protocol modules, upon failover, the communications subsystem does not need to be reconfigured for resuming operations as, for example, the standby reliable transport protocol module will already be receiving these packets.
    Type: Application
    Filed: May 23, 2007
    Publication date: November 27, 2008
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Chakravarthi S. Chigurupati, Tejas H. Rajkotia, Bharat M. Bhojwani, Pradeep Singh, Dongling Duan