Comparison of public end-to-end bandwidth estimation tools on high-speed links

  • Authors:

  • Alok Shriram;Margaret Murray;Young Hyun;Nevil Brownlee;Andre Broido;Marina Fomenkov;kc claffy

  • Affiliations:

  • CAIDA, San Diego Supercomputer Center, University of California, San Diego;Texas Advanced Computing Center;CAIDA, San Diego Supercomputer Center, University of California, San Diego;CAIDA, San Diego Supercomputer Center, University of California, San Diego;CAIDA, San Diego Supercomputer Center, University of California, San Diego;CAIDA, San Diego Supercomputer Center, University of California, San Diego;CAIDA, San Diego Supercomputer Center, University of California, San Diego

  • Venue:
  • PAM'05 Proceedings of the 6th international conference on Passive and Active Network Measurement
  • Year:
  • 2005

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Abstract

In this paper we present results of a series of bandwidth estimation experiments conducted on a high-speed testbed at the San Diego Supercomputer Center and on OC-48 and GigE paths in real world networks. We test and compare publicly available bandwidth estimation tools: abing, pathchirp, pathload, and Spruce. We also tested Iperf which measures achievable TCP throughput. In the lab we used two different sources of known and reproducible cross-traffic in a fully controlled environment. In real world networks we had a complete knowledge of link capacities and had access to SNMP counters for independent cross-traffic verification. We compare the accuracy and other operational characteristics of the tools and analyze factors impacting their performance.