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首页> 外文会议>Asian Internet Engineering Conference on Technologies for Advanced Heterogeneous Networks(AINTEC 2005); 20051213-15; Bangkok(TH) >Application-Level Versus Network-Level Proximity
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Application-Level Versus Network-Level Proximity

机译：应用程序级别与网络级别的接近度

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摘要

We motivate in this paper the need for application-level proximity. This proximity is a function of network characteristics that decide on the application performance. Most of existing protocols rely on the network-level proximity as for example the one based on the delay (e.g., the delay closest peer is the best peer to contact). In this paper, we study how much the two proximity definitions differ from each other. The work consists of running extensive measurements over the PlanetLab overlay network and comparing different proximity definitions. Our major observation is that the delay proximity is not always a good predictor of quality and that other network parameters are to be considered as well based on the application requirements. Particulary, the best peer to contact is not always the delay closest one. This can be explained by our other observation, that of the slight correlation of network characteristics with each other.
机译：我们在本文中激发了对应用程序级接近的需求。这种接近度是网络特性的函数，网络特性决定了应用程序的性能。现有的大多数协议都依赖于网络级别的邻近性，例如基于延迟的协议（例如，延迟最接近的对等方是联系的最佳对等方）。在本文中，我们研究了两个接近度定义之间的差异。这项工作包括通过PlanetLab覆盖网络进行广泛的测量并比较不同的接近度定义。我们的主要观察结果是，延迟接近度并非始终是质量的良好预测指标，并且还应根据应用要求考虑其他网络参数。特别地，联系的最佳伙伴并不总是延迟最接近的那个。这可以用我们的其他观察结果来解释，即网络特性之间的轻微关联。

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