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Interactivity in transport protocol can greatly benefit transport friendly applications generating streaming traffic. Recently we have developed the TCP interactive, which can provide event notification to the subscriber of its communication service. This is operationally state equivalent to the conventional TCP except applications can optionally subscribe, receive, and in real-time react to selected local end-point events. This simple extension opens the horizon for a spectrum of smart application level solutions to be realized for many of the current hard problems including congestion control for time sensitive elastic traffic. We have recently implemented and tested the real system on the active network (ABone) testbed for video streaming to worldwide sites. In this paper we share the performance of this system and report potential dramatic improvement in time-bounded streaming traffic.