New Methods for Passive Estimation of TCP Round-Trip Times

New Methods for Passive Estimation of TCP Round-Trip Times
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TCP 往返时间被动估计的新方法

DOI:
10.1007/978-3-540-31966-5_10
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发表时间:
2005
期刊:
2009 6th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology
影响因子:
--
通讯作者:
D. Lowenthal
D. Lowenthal
中科院分区:
--
文献类型:
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作者:
Bryan Veal;Kang Li;D. Lowenthal

文献摘要

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我们提出了两种方法来被动地测量和监测TCP连接的整个生命周期中的往返时间(RTT)的变化。我们的第一种方法将数据段与通过利用TCP时间戳选项触发它们的确认(ACK)关联起来。我们的第二种方法推断TCP RTT通过观察段集群的重复模式,其中该模式是由TCP自同步引起的。我们使用仿真和真实的互联网测试来评估这两种方法。
We propose two methods to passively measure and monitor changes in round-trip times (RTTs) throughout the lifetime of a TCP connection. Our first method associates data segments with the acknowledgments (ACKs) that trigger them by leveraging the TCP timestamp option. Our second method infers TCP RTT by observing the repeating patterns of segment clusters where the pattern is caused by TCP self-clocking. We evaluate the two methods using both emulated and real Internet tests.