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In this paper, we attempt to estimate the effectiveness of geographical routing in the global network. The concept of the length of the telecommunications link is introduced. In order to calculate the length, the physical principle of finite speed of light and the minimum time of packet delay on the investigated route are used. The effectiveness ratio of geographic routing is taken to equal the ratio...
In most works of network tomography, end-to-end measurements are conducted based on the assumption of single-path routing. However, multipath routing caused by load balancing is increasingly common in today's Internet and makes it hard to tell which end-to-end path is measured by the current probing flow. In this letter, we propose a tomographic scheme able to reveal the corresponding relationship...
Unwanted or unusual delay changes on an Internet path can happen, though possibly rarely. In order to understand and manage the network to potentially avoid such abrupt changes, it is crucial and challenging to locate which part of the path has contributed critically to such delay disruptions so that some corresponding actions may be taken. To tackle this challenge, the present paper proposes a simple...
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