Abstract

Recently, there has been a dramatic increase in interactive cloud based
software applications (e.g. working on remote machines,
online games, interactive
websites such as financial, web search)
and other soft real-time applications (traffic within data center).
Compared to classical real-time media applications
(VoIP/conferencing) and non real-time file delivery,
these interactive software applications have unique characteristics
as they are delay sensitive yet demand in order and reliable data delivery.
Therefore existing protocols for delivery of lossless data (such
as TCP) and other delivery protocols using UDP do not
work well.
In this demo, we show substantially improved performance for such
traffic by using a transport protocol built on top of UDP which uses
intelligent adaptive
forward error correction (FEC) and improved congestion control (rate control).
The transport protocol is made lossless by using a hybrid FEC/ARQ strategy.
The congestion control technique improves the delay
performance by preventing
congestion induced loss and minimizing queuing delay while still
fully utilizing network capacity and maintaining
fairness across flows.
In this demo, we present RAPID (a bf Relibf Able transport
bf Protocol for bf Improving end-to-end bf Delay) and
show its effectiveness in improving
the performance of interactive client-server applications.

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