Публікація: Обзор технологических и теоретических решений в области маршрутизации на основе качества обслуживания
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Дата
2012
Автори
Назва журналу
ISSN журналу
Назва тома
Видавництво
Проблеми телекомунікацій
Анотація
Under rising requirements for telecommunication network role of routing increases, because routing is an effective tool to ensure the specified end-to end quality of service (QoS). Nowadays the routing is transformed into QoS-based routing which focuses on the searching one or more paths for delivering packets where all described in the SLA requirements for quality of service must be satisfied. A set of technological and theoretical solutions is developed for solving QoS-based routing problem. About it several concepts deserves attention among which source routing, precomputed routing, route server concept. From theoretical point of view QoS-based routing problem can be solved by using graph theory approach or flow-based mathematical model of network. The graph theory approach is based on structure only and doesn’t take into account flow properties of transmitted traffic. As a result it doesn’t allow allocating network resources between different traffics and concordance between routing, accesses, queuing, and reservation. As a rule a flow-based approach solves QoS-based routing problem as mathematical programming problem with QoS-constrains. For example, it can be tensor constrains. The article contains possible lines of development of QoS-based routing that include conversion to dynamical metrics and dynamical models with QoS-constrains, not only load balancing but quality balancing, concordance between routing and another traffic control tasks.
Опис
Ключові слова
маршрутизация, модел, протокол, телекоммуникационная сеть
Бібліографічний опис
Евсеева, О. Ю. Обзор технологических и теоретических решений в области маршрутизации на основе качества обслуживания [Текст] / О. Ю. Евсеева, С. В. Гаркуша // Проблеми телекомунікацій. - 2012. № 3 (8). - С. 24 – 46.