Measuring end-to-end bulk transfer capacity

  • Authors:
  • Mark Allman

  • Affiliations:
  • BBN Technologies/NASA Glenn Research Center

  • Venue:
  • IMW '01 Proceedings of the 1st ACM SIGCOMM Workshop on Internet Measurement
  • Year:
  • 2001

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Abstract

This paper provides a preliminary assessment of the effectiveness of an application layer tool that measures the Bulk Transfer Capacity (BTC) of a network path. BTC is roughly defined as the throughput that a flow using standard congestion control techniques would obtain across a given network path at a given time. We utilize the NIMI mesh of measurement hosts to compare stock BSD TCP with a new BTC measurement tool, cap. While BTC tools have been around for some time, no systematic evaluation of their accuracy with respect to standard TCP congestion control across a wide variety of network paths has been conducted. The goal of this paper is to provide such an empirical evaluation of a BTC tool and therefore assess the reliability of the measurement obtained using BTC tools.