Smart Dimensioning of IP Network Links

R. van de Meent, M.R.H. Mandjes, Aiko Pras

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    3 Citations (Scopus)
    25 Downloads (Pure)

    Abstract

    Link dimensioning is generally considered as an effective and (operationally) simple mechanism to meet (given) performance requirements. In practice, the required link capacity C is often estimated by rules of thumb, such as C = d ·M, where M is the (envisaged) average traffic rate, and d some (empirically determined) constant larger than 1. This paper studies the viability of this class of ‘simplistic’ dimensioning rules. Throughout, the performance criterion imposed is that the fraction of intervals of length T in which the input exceeds the available output capacity (i.e., C·T) should not exceed ε, for given T and ε. We first present a dimensioning formula that expresses the required link capacity as a function of M and a variance term V(T), which captures the burstiness on timescale T. We explain how M and V(T) can be estimated with low measurement effort. The dimensioning formula is then used to validate dimensioning rules of the type C = d ·M. Our main findings are: (i) the factor d is strongly affected by the nature of the traffic, the level of aggregation, and the network infrastructure; if these conditions are more or less constant, one could empirically determine d; (ii) we can explicitly characterize how d is affected by the ‘performance parameters’, i.e., T and ε.
    Original languageEnglish
    Title of host publicationProceedings of the 18th IFIP/IEEE International Workshop on Distributed Systems: Operations and Management, DSOM 2007
    EditorsA. Clemm, L. Granville, R. Stadler
    Place of PublicationBerlin
    PublisherSpringer
    Pages86-97
    Number of pages12
    ISBN (Print)978-3-540-75693-4
    DOIs
    Publication statusPublished - Oct 2007
    Event18th IFIP/IEEE International Workshop on Distributed Systems: Operations and Management, DSOM 2007: Managing Virtualization of Networks and Services - San Jose, United States
    Duration: 29 Oct 200731 Oct 2007
    Conference number: 18

    Publication series

    NameLecture Notes in Computer Schience
    PublisherSpringer Verlag
    NumberLNCS4549
    Volume4785
    ISSN (Print)0302-9743
    ISSN (Electronic)1611-3349

    Workshop

    Workshop18th IFIP/IEEE International Workshop on Distributed Systems: Operations and Management, DSOM 2007
    Abbreviated titleDSOM
    CountryUnited States
    CitySan Jose
    Period29/10/0731/10/07

    Keywords

    • EWI-11314
    • METIS-242027
    • IR-61991

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