Opnet Technologies, Inc.

Worldgate Service, Inc.

Other

Navneeth N Kannan

Eric Ward Gray

David E Wachob

Whitney Blackmon

Hal M Krisbergh

Randall J Gort

Randell E Jesup

Maire D Reavy

Richard W Westerfer

Joseph Ellis Augenbraun

Joseph A Augenbraun

Systems and methods are disclosed for managing services on a network. In one exemplary embodiment, the method includes receiving topologically relevant network information concerning nodes, interfaces, connections and/or protocols; resolving conflicts in the received information; determining and storing a network topology from the received and resolved information; and inferring one or more services based on the stored topology.

Systems and methods for inferring services on a network

Systems and methods are disclosed for testing a processor having at least a first interface. In one embodiment, the method includes configuring, at the processor, a second interface, such that the configured second interface has one or more quality of service parameters representative of the first interface; sending one or more packets through the configured second interface, the one or more packets being representative of another packet received at the first interface; and determining, based on the one or more packets, one or more performance parameters corresponding to the first interface under test.

Systems and methods for intelligent probe testing

A videophone system providing high resolution video transmission between videophones utilizes compressed video signals and audio signals which may be transmitted through any communications network, with the system providing real time adaptive error recovery and synchronization between the audio and video signals to produce high quality video images and sound. The system is highly resilient, adapting in real time to changing conditions in a network or to network errors due to data corruption or loss that can be produced, for example, by noise or line losses, thereby substantially eliminating fitter, signal packet loss or delay, or other errors which produce signal degradation.

Adaptive video telephone system

System and method for providing personal videotelephony in which a plurality of videophones are connected to a communications network that is configured for transmitted video and audio communications. Each of the videophones typically includes a camera, display device, telephone keypad, speaker and microphone all of which are operatively connected. The videophones further include means for selectably receiving and transmitting signals over the communications network, which signals represent images and/or sound, and for selectably displaying the signals representing any received signals representing the images on the display screen, and for playing any received signals representing the sounds on said speaker. Means are also provided for selectably accessing a remote location, such as, but not limited to, another videophone, using information entered or selected by a user of the videophone, and to retrieve the signals representing the images and sounds being transmitted from the remote location. In one or more embodiments the present invention further includes at least one networks operation center to store information related to the operation of the videophones and to facilitate the operation of the videophones.

Videophone system and method

Systems and methods are disclosed for simulating network performance. In one exemplary embodiment, the method includes inferring one or more services on the network; collecting network information based on actual traffic on the network; determining a traffic generator, such that the traffic generator represents the actual traffic on the network from a perspective of at least one of the inferred services; and simulating performance of the network using the determined traffic generator and at least one of the inferred services.

Growing community of inventors

Westford, MA, United States of America

Navneeth N Kannan