Study of Network Dynamics

Abstract Over the last few years Internet has grown from few a thousand hosts to well over a million hosts. It is supporting millions of users all over the world who use it for several different applications. In such a complex environment, it becomes difficult to detect problems with the design and implementation of various components. We have developed a tool, NetDyn, to study the performance of the network from the perspective of users. Using NetDyn, we have been able to detect a number of performance problems. The problems include large variation in round-trip times and high loss rates.

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