Round-trip time inference via passive monitoring

Author:

Lance Ryan1,Frommer Ian2

Affiliation:

1. University of Maryland, College Park, MD

2. University of Maryland

Abstract

The round-trip time and congestion window are the most important rate-controlling variables in TCP. We present a novel method for estimating these variables from passive traffic measurements. The method uses four different techniques to infer the minimum round-trip time based the pacing of a limited number of packets. We then estimate the sequence of congestion windows and round-trip times for the whole flow. We validate our algorithms with the ns2 network simulator.

Publisher

Association for Computing Machinery (ACM)

Subject

Computer Networks and Communications,Hardware and Architecture,Software

Reference7 articles.

1. Inferring TCP connection characteristics through passive measurements

2. Passive estimation of TCP round-trip times

3. A passive approach for detecting shared bottlenecks

4. ns2 Network Simulator. http://www.isi.edu/nsnam/ns 2000. ns2 Network Simulator. http://www.isi.edu/nsnam/ns 2000.

5. Passive Measurement and Analysis archive. National Laboratory for Applied Network Research. http://pma.nlanr.net 2005. Passive Measurement and Analysis archive. National Laboratory for Applied Network Research. http://pma.nlanr.net 2005.

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