A simultaneous inline measurement mechanism for capacity and available bandwidth of end-to-end network path

Cao Le Thanh Man, Go Hasegawa, Masayuki Murata

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

We previously proposed a new version of TCP, called Inline measurement TCP (ImTCP), in [2],[3]. The ImTCP sender adjusts the transmission intervals of data packets and then utilizes the arrival intervals of ACK packets for available bandwidth estimation. This type of active measurement is preferred because the obtained results are as accurate as those of other conventional types of active measurement, even though no extra probe traffic is injected onto the network. In the present research, we develop a new capacity measurement function and combine it with ImTCP in order to enable simultaneous measurement of both capacity and available bandwidth in ImTCP. The capacity measurement algorithm is a new packet-pair-based measurement technique that utilizes the estimated available bandwidth values for capacity calculation. This new algorithm promises faster measurement than current packet-pair-based measurement algorithms for various situations and works well for high-load networks, in which current algorithms do not work properly. Moreover, the new algorithm provides a confidence interval for the measurement result.

Original languageEnglish
Pages (from-to)2469-2479
Number of pages11
JournalIEICE Transactions on Communications
VolumeE89-B
Issue number9
DOIs
Publication statusPublished - 2006
Externally publishedYes

Keywords

  • Available bandwidth
  • Capacity
  • End-to-end measurement
  • Inline measurement
  • Packet pair
  • TCP

ASJC Scopus subject areas

  • Software
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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