Patents by Inventor Jerrold A. Stiffler

Jerrold A. Stiffler 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).

  • Patent number: 9014012
    Abstract: A network analysis system invokes an application specific, or source-destination specific, path discovery process. The application specific path discovery process determines the path(s) used by the application, collects performance data from the nodes along the path, and communicates this performance data to the network analysis system for subsequent performance analysis. The system may also maintain a database of prior network configurations to facilitate the identification of nodes that are off the path that may affect the current performance of the application. The system may also be specifically controlled so as to identify the path between any pair of specified nodes, and to optionally collect performance data associated with the path.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: April 21, 2015
    Assignee: Riverbed Technology, Inc.
    Inventors: Vinod Jeyachandran, Pradeep Natarajan, James Mark Shaw, Raghavendra Uppalli, Pradeep Singh, Nitin Gupta, Jerrold Stiffler
  • Patent number: 8934376
    Abstract: The embodiments improve the results of an auto-detection of network devices responsive to the causes of detection failures in preceding runs of the auto-detection process. The network may comprise various devices that are believed to be in the network. If a device that is believed to be in the network, but is undiscovered, the embodiments identify the device and information regarding the cause or causes of non-discovery. In response, the discovery parameters are modified, based on the causes associated with the undiscovered devices. The extent to which the discovery parameters are modified is based various criteria, such as the characterization of the network, or upon the detection of changes to the network.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: January 13, 2015
    Assignee: Riverbed Technology, Inc.
    Inventors: Krisnan Sivaramakrishna Iyer, James Mark Shaw, Jerrold A. Stiffler
  • Patent number: 8811193
    Abstract: A network analysis system invokes an application specific, or source-destination specific, path discovery process. The application specific path discovery process determines the path(s) used by the application, collects performance data from the nodes along the path, and communicates this performance data to the network analysis system for subsequent performance analysis. The system may also maintain a database of prior network configurations to facilitate the identification of nodes that are off the path that may affect the current performance of the application. The system may also be specifically controlled so as to identify the path between any pair of specified nodes, and to optionally collect performance data associated with the path.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: August 19, 2014
    Assignee: Riverbed Technology, Inc.
    Inventors: Vinod Jeyachandran, Pradeep Natarajan, James Mark Shaw, Raghavendra Uppalli, Pradeep Singh, Nitin Gupta, Jerrold Stiffler
  • Publication number: 20130042020
    Abstract: Embodiments for quick network path discovery are provided. Embodiments may be used by a user (e.g., network administrator) in troubleshooting a performance/communication problem in the network. M an embodiment, path information, including Layer-3 and/or Layer-2 path information, can be requested between any pair of devices in the network and presented to the user. In an embodiment, path information is provided to the user in an iterative (or gradual) manner as soon as resolved. This allows the user quick access to path information, which both reduces troubleshooting time and enhances the user experience. In addition, in an embodiment, the path information may be provided without any live interaction with any device in the network.
    Type: Application
    Filed: August 7, 2012
    Publication date: February 14, 2013
    Applicant: OPNET Technologies, Inc.
    Inventors: Jerrold STIFFLER, Raghavendra UPPALLI, James Mark SHAW
  • Patent number: 8305931
    Abstract: A method and/or system is configured to improve the results of an auto-detection of network devices based on the causes of detection failures in preceding runs of the auto-detection process. As each device that is believed to be in the network is found to be undiscovered, the identification of the device and information regarding the cause(s) of non-discovery are stored. Prior to the next auto-detection run, one or more of the discovery parameters are modified, based on the causes associated with the undiscovered devices. The extent to which the discovery parameters are modified is preferably based on the apparent stability of the network, or upon the detection of changes to the network.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: November 6, 2012
    Assignee: OPNET Technologies, Inc.
    Inventors: Krishnan Sivaramakrishna Iyer, James Mark Shaw, Jerrold A. Stiffler
  • Publication number: 20110085450
    Abstract: A network analysis system invokes an application specific, or source-destination specific, path discovery process. The application specific path discovery process determines the path(s) used by the application, collects performance data from the nodes along the path, and communicates this performance data to the network analysis system for subsequent performance analysis. The system may also maintain a database of prior network configurations to facilitate the identification of nodes that are off the path that may affect the current performance of the application. The system may also be specifically controlled so as to identify the path between any pair of specified nodes, and to optionally collect performance data associated with the path.
    Type: Application
    Filed: October 7, 2010
    Publication date: April 14, 2011
    Inventors: Vinod JEYACHANDRAN, Pradeep Natarajan, James Mark Shaw, Raghavendra Uppalli, Pradeep Singh, Nitin Gupta, Jerrold Stiffler
  • Publication number: 20110085449
    Abstract: A network analysis system invokes an application specific, or source-destination specific, path discovery process. The application specific path discovery process determines the path(s) used by the application, collects performance data from the nodes along the path, and communicates this performance data to the network analysis system for subsequent performance analysis. The system may also maintain a database of prior network configurations to facilitate the identification of nodes that are off the path that may affect the current performance of the application. The system may also be specifically controlled so as to identify the path between any pair of specified nodes, and to optionally collect performance data associated with the path.
    Type: Application
    Filed: October 7, 2010
    Publication date: April 14, 2011
    Inventors: Vinod JEYACHANDRAN, Pradeep Natarajan, James Mark Shaw, Raghavendra Uppalti, Pradeep Singh, Nitin Gupta, Jerrold Stiffler
  • Publication number: 20100046395
    Abstract: A method and/or system is configured to improve the results of an auto-detection of network devices based on the causes of detection failures in preceding runs of the auto-detection process. As each device that is believed to be in the network is found to be undiscovered, the identification of the device and information regarding the cause(s) of non-discovery are stored. Prior to the next auto-detection run, one or more of the discovery parameters are modified, based on the causes associated with the undiscovered devices. The extent to which the discovery parameters are modified is preferably based on the apparent stability of the network, or upon the detection of changes to the network.
    Type: Application
    Filed: August 20, 2009
    Publication date: February 25, 2010
    Inventors: Krishnan SIVARAMAKRISHNA IYER, James Mark SHAW, Jerrold A. STIFFLER