1st International ICST Workshop on Metrology for Grid Networks

Research Article

Fog in the Network Weather Service: A Case for Novel Approaches

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  • @INPROCEEDINGS{10.4108/gridnets.2007.2247,
        author={Muhammad Murtaza Yousaf and Michael Welzl and Malik Muhammad Junaid},
        title={Fog in the Network Weather Service: A Case for Novel Approaches},
        proceedings={1st International ICST Workshop on Metrology for Grid Networks},
        publisher={ICST},
        proceedings_a={METROGRID},
        year={2007},
        month={10},
        keywords={Bandwidth estimation},
        doi={10.4108/gridnets.2007.2247}
    }
    
  • Muhammad Murtaza Yousaf
    Michael Welzl
    Malik Muhammad Junaid
    Year: 2007
    Fog in the Network Weather Service: A Case for Novel Approaches
    METROGRID
    ICST
    DOI: 10.4108/gridnets.2007.2247
Muhammad Murtaza Yousaf1,*, Michael Welzl1,*, Malik Muhammad Junaid1,*
  • 1: University of Innsbruck, Austria
*Contact email: Murtaza.Yousaf@uibk.ac.at, Michael.Welzl@uibk.ac.at, Malik.Junaid@uibk.ac.at

Abstract

A very large amount of data must be used to reasonably measure the available network bandwidth in a Grid by simply checking the time that it takes to send it across the network with TCP. The Network Weather Service (NWS) is the most common tool for obtaining transfer delay predictions from network measurements in Grids. We show that, in simple tests in a real Grid, the results that it obtains are not good enough or require heavily loading the network. The point of this study is to illustrate the need for more sophisticated and appropriately designed network measurement tools.