On/off process modeling of IP network failures

Pirkko Kuusela, Ilkka Norros

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

    21 Citations (Scopus)


    A reliability model for IP networks is considered, where the routers and links are modeled by independent stationary on/off processes. Component downtimes may obey any probability distribution. The model combines component reliability to a topological analysis, taking into account the routing rules of the network. This allows the derivation of on-off processes describing with high accuracy the IP-availability delivered to customers of each access router. The approach also provides estimates for risk in terms of lost traffic and allows analytic comparison of basic strategies for reliability improvement. The methodology is illustrated by studying the Finnish research backbone network. (15 refs.)
    Original languageEnglish
    Title of host publicationProceedings
    Subtitle of host publicationIEEE/IFIP International Conference on Dependable Systems & Networks, DSN 2010
    Place of PublicationPiscataway, NJ, USA
    PublisherIEEE Institute of Electrical and Electronic Engineers
    ISBN (Electronic)978-1-4244-7501-8
    ISBN (Print)978-1-4244-7500-1
    Publication statusPublished - 2010
    MoE publication typeA4 Article in a conference publication
    EventIEEE/IFIP International Conference on Dependable Systems & Networks, DSN 2010 - Chicago, IL, United States
    Duration: 28 Jun 20101 Jul 2010


    ConferenceIEEE/IFIP International Conference on Dependable Systems & Networks, DSN 2010
    Abbreviated titleDSN 2010
    Country/TerritoryUnited States
    CityChicago, IL


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