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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">mais</journal-id><journal-title-group><journal-title xml:lang="ru">Моделирование и анализ информационных систем</journal-title><trans-title-group xml:lang="en"><trans-title>Modeling and Analysis of Information Systems</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1818-1015</issn><issn pub-type="epub">2313-5417</issn><publisher><publisher-name>Yaroslavl State University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18255/1818-1015-2018-2-193-206</article-id><article-id custom-type="elpub" pub-id-type="custom">mais-679</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Оригинальные статьи</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Articles</subject></subj-group></article-categories><title-group><article-title>Сравнительный анализ устойчивости вычислительных решеток с различной архитектурой узла к индуцированным тупикам</article-title><trans-title-group xml:lang="en"><trans-title>Comparative Analysis of Stability to Induced Deadlocks for Computing Grids with Various Node Architectures</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4799-3842</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шмелёва</surname><given-names>Татьяна Рудольфовна</given-names></name><name name-style="western" xml:lang="en"><surname>Shmeleva</surname><given-names>Tatiana R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. техн. наук, доцент</p></bio><bio xml:lang="en"><p>PhD</p></bio><email xlink:type="simple">tishtri@rambler.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Одесская национальная академия связи им. А.С. Попова</institution><country>Украина</country></aff><aff xml:lang="en"><institution>A.S. Popov Odessa National Academy of Telecommunications</institution><country>Ukraine</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>20</day><month>04</month><year>2018</year></pub-date><volume>25</volume><issue>2</issue><fpage>193</fpage><lpage>206</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Шмелёва Т.Р., 2018</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="ru">Шмелёва Т.Р.</copyright-holder><copyright-holder xml:lang="en">Shmeleva T.R.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.mais-journal.ru/jour/article/view/679">https://www.mais-journal.ru/jour/article/view/679</self-uri><abstract><p>Рассматриваются классификация и области применения методов коммутации, их достоинства и недостатки. Построена модель вычислительной решетки в форме раскрашенной сети Петри с узлом, реализующим сквозную коммутацию пакетов. Модель состоит из узлов коммутации пакетов, генераторов трафика и пушек, которые формируют злонамеренный трафик, замаскированный под обычный пользовательский трафик. Исследованы характеристики модели решетки в условиях рабочей нагрузки с различной интенсивностью. Оценено влияние злонамеренного трафика типа «дуэль трафика» на параметры качества обслуживания решетки. Проведен сравнительный анализ устойчивости вычислительных решеток с узлами, реализующими технологию передачи пакетов с обязательной буферизацией, и сквозной коммутации. Показано, что производительности решеток примерно одинаковы в условиях рабочей нагрузки; а в условиях пиковой нагрузки решетка с узлом, реализующим технологию передачи пакетов с принудительной буферизацией, более устойчива. Решетка с узлами, реализующими технологию SAF, приходит к полному тупику через дополнительную нагрузку менее чем 10 процентов. После детального исследования показано, что конфигурация «дуэль трафика» не оказывает влияния на решетку с узлами cut-through при увеличении рабочей нагрузки до пиковой, при которой решетка приходит к полному тупику. Периодичность запуска пушек, генерирующих злонамеренный трафик, определена случайной функцией с пуассоновским распределением. Для построения моделей и измерений характеристик используется моделирующая система CPN Tools. Производительность решетки и среднее время доставки пакета оценивается при различных вариантах нагрузки на решетку.</p></abstract><trans-abstract xml:lang="en"><p>In this paper, we consider the classification and applications of switching methods, their advantages and disadvantages. A model of a computing grid was constructed in the form of a colored Petri net with a node which implements cut-through packet switching. The model consists of packet switching nodes, traffic generators and guns that form malicious traffic disguised as usual user traffic. The characteristics of the grid model were investigated under a working load with different intensities. The influence of malicious traffic such as traffic duel was estimated on the quality of service parameters of the grid. A comparative analysis of the computing grids stability was carried out with nodes which implement the store-and-forward and cut-through switching technologies. It is shown that the grids performance is approximately the same under work load conditions, and under peak load conditions the grid with the node implementing the store-and-forward technology is more stable. The grid with nodes implementing SAF technology comes to a complete deadlock through an additional load which is less than 10 percent. After a detailed study, it is shown that the traffic duel configuration does not affect the grid with cut-through nodes if the workload is increases to the peak load, at which the grid comes to a complete deadlock. The execution intensity of guns which generate a malicious traffic is determined by a random function with the Poisson distribution. The modeling system CPN Tools is used for constructing models and measuring parameters. Grid performance and average package delivery time are estimated in the grid on various load options.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>безопасность вычисления на решетках</kwd><kwd>сквозная коммутация</kwd><kwd>защита против атак трафика</kwd><kwd>оценка производительности</kwd><kwd>раскрашенная сеть Петри</kwd><kwd>тупик</kwd></kwd-group><kwd-group xml:lang="en"><kwd>computing grid security</kwd><kwd>cut-through switching</kwd><kwd>traffic attack defence</kwd><kwd>performance evaluation</kwd><kwd>colored Petri net</kwd><kwd>deadlock</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Preve N.P., Grid Computing: Towards a Global Interconnected Infrastructure, Springer, 2011, 312 pp.</mixed-citation><mixed-citation xml:lang="en">Preve N.P., Grid Computing: Towards a Global Interconnected Infrastructure, Springer, 2011, 312 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