AT&T Intellectual Property I, LP

At+t Corp.

Other

Charles D Cranor

Raman Gopalakrishnan

Oliver Spatscheck

Divesh Srivastava

Theodore Donald Johnson

Peter Onufryk

Sandeep Sibal

Jacobus Erasmus Van Der Merwe

Charles Robert Kalmanek, Jr

David Hilton Shur

Laurence W Ruedisueli

Cormac John Sreenan

Matthew D Green

Mike Chan

Frederick Douglis

Michael Rabinovich

Alexandros Biliris

Walter Sturm

Cooper Nelson

The present invention is directed to mechanisms for content-aware redirection and content exchange/content discovery that permit a request for content to be redirected to a particular advantageous server that can serve the content.

Method for content-aware redirection and content renaming

A packet telephony appliance includes a Euphony network processor that integrates networking and DSP functions to provide a low cost and efficient solution in building a networked appliance. In particular, a Euphony ATM Telephone (EAT) is built around the Euphony network processor. The EAT uses a real-time operating system to provide predictable processing and networking support. The EAT implements IObufs, which provides a unified buffering scheme that allows zero-copy data movement. Furthermore, the EAT uses an Event Exchange (EVX), which provides a flexible mechanism for event distribution, allowing software modules to be composed together in an extensible manner. EVX and IObufs are used together to provide highly efficient intra-appliance communication. The EAT provides a platform that can evolve gracefully to support new protocols, advanced telephony services and enhanced user interfaces.

Packet telephony appliance

A method and system for extracting useful statistics and information and removing a processing module based on the information to enhance a run-time system on a network interface card is disclosed. The run-time system module feeds information derived from a network packet to processing modules which process the information and generate output such as condensed statistics about the packets traveling through the network. The run-time system can be enhanced to included facilities for removing processing modules without replacing the run-time system module.

Method and apparatus for packet analysis in a network

A method and system for monitoring traffic in a data communication network and for extracting useful statistics and information is disclosed.

The present invention provides an architecture that advantageously leverages multiple content distribution networks to provide enhanced services. In accordance with an embodiment of the present invention, a share of content requests are served by each of a plurality of content distribution networks. The fraction of content requests served by a particular content distribution network can be determined dynamically, depending on the offered load or other traffic characteristics.

Method and apparatus for content distribution network brokering and peering

A method and system for monitoring traffic in a data communication network and for extracting useful statistics and information is disclosed. In accordance with an embodiment of the invention, a network interface card has a run-time system and one or more processing blocks executing on the network interface. The run-time system module feeds information derived from a network packet to the processing modules which process the information and generate output such as condensed statistics about the packets traveling through the network.

An event exchange mechanism for software systems is disclosed that utilizes a receiver-driven, publisher-subscriber model to overcome various problems in the prior art. The event exchange has a flexible addressing scheme so that a sending module need not be aware of all of its receiving modules. Yet, the event exchange still provides the ability to multicast messages to interested receivers. The system is also uniform since both data and control information can be exchanged using the same mechanism. Mechanisms for flow control are also provided so that a receiver can exert backpressure on a sender; this is especially useful for the transfer of multimedia data.

Growing community of inventors

Morristown, NJ, United States of America

Charles D Cranor