用经验描述实际设备的缓冲区行为
Empirically Characterizing the Buffer Behaviour of Real Devices
摘要：
所有的路由器都包括一个缓冲区，以便将等待传输的数据包排队。在研究网络流量时，路由器缓冲区的行为至关重要，因为它可能会修改某些特性，如延迟或抖动，也可能会丢弃数据包。因此，该缓冲区的特征是有趣的，特别是当实时流被传输时：如果缓冲区特征是已知的，则可以使用不同的技术来适应流量：将多个小分组复用成一个大分组，分段，本文对如何确定某设备缓冲器的技术和功能特性进行了初步研究（例如，行为、大小、限制、输入和输出速率），或者甚至在远程互联网网络节点中。两种不同的方法被认为是，并在两个真实的情况下，已实施的测试;真正的测量允许估计的缓冲区大小，和输入和输出速率，当有物理或远程访问的“系统测试”。在具有物理访问的情况下，可以通过计数来确定队列中的分组的最大数量。相反，如果节点是远程的，则必须估计其缓冲区大小。我们在有线和无线网络中获得了准确的结果。
英文摘要：
All the routers include a buffer in order to enqueue packets waiting to be transmitted. The behaviour of the routers' buffer is of primary importance when studying network traffic, since it may modify some characteristics, as delay or jitter, and may also drop packets. As a consequence, the characterization of this buffer is interesting, especially when real-time flows are being transmitted: if the buffer characteristics are known, then different techniques can be used so as to adapt the traffic: multiplexing a number of small packets into a big one, fragmentation, etc. This work presents a preliminary study of how to determine the technical and functional characteristics of the buffer of a certain device (as e.g. behaviour, size, limits, input and output rate), or even in a remote Internet network node. Two different methodologies are considered, and tested on two real scenarios which have been implemented; real measurements permit the estimation of the buffer size, and the input and output rates, when there is physical or remote access to the "System Under Test". In case of having physical access, the maximum number of packets in the queue can be determined by counting. In contrast, if the node is remote, its buffer size has to be estimated. We have obtained accurate results in wired and wireless networks.
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。
