交通测量中草图的设计、优化、应用与实现
A survey of sketches in traffic measurement: Design, Optimization, Application and Implementation
摘要：
网络测量探测底层网络，以支持上层决策，如网络管理，网络更新，网络维护，网络防御等。由于网络流具有海量、快速、不可预测等特点，在测量节点中广泛采用草图来近似记录流的频率或估计流的基数。在其核心，草图通常维护一个或多个计数器数组，并依赖于哈希函数为每个流选择计数器。然后聚集来自分布式测量节点的空间有效的草图以提供正在进行的流的统计。目前，已经提出了大量的重新设计和优化来改进草图，以获得更好的网络测量性能。然而，现有的审查或调查主要侧重于计量任务的一个特定方面。网络测量社区的研究人员和工程师希望有一个涵盖基于草图的网络测量的整个处理流程的一体化调查。为此，我们提出了这一领域的第一次全面调查。我们首先介绍了测量流的准备，然后详细介绍了最近的研究设计，聚合，解码，应用和网络测量的草图的实现。为了总结现有的努力，我们对现有的文献进行了深入的研究，涵盖了90多个草图设计和优化策略。此外，我们还对素描设计进行了全面的分析和定性/定量的比较。最后，我们强调了未来基于草图的网络测量研究的开放问题。
英文摘要：
Network measurement probes the underlying network to support upper-level decisions such as network management, network update, network maintenance, network defense and beyond. Due to the massive, speedy, unpredictable features of network flows, sketches are widely implemented in measurement nodes to approximately record the frequency or estimate the cardinality of flows. At their cores, sketches usually maintain one or multiple counter array(s), and rely on hash functions to select the counter(s) for each flow. Then the space-efficient sketches from the distributed measurement nodes are aggregated to provide statistics of the undergoing flows. Currently, tremendous redesigns and optimizations have been proposed to improve the sketches for better network measurement performance. However, existing reviews or surveys mainly focus on one particular aspect of measurement tasks. Researchers and engineers in the network measurement community desire an all-in-one survey that covers the entire processing pipeline of sketch-based network measurement. To this end, we present the first comprehensive survey of this area. We first introduce the preparation of flows for measurement, then detail the most recent investigations of design, aggregation, decoding, application and implementation of sketches for network measurement. To summarize the existing efforts, we carry out an in-depth study of the existing literature, covering more than 90 sketch designs and optimization strategies. Furthermore, we conduct a comprehensive analysis and qualitative/quantitative comparison of the sketch designs. Finally,we highlight the open issues for future sketch-based network measurement research.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
