Journal
Scientific and technical journal «Priborostroenie»
UDK004.72
Issue:4 (66)
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METHOD OF DATA TRANSMISSION IN SOFTWARE- DEFINED NETWORKS USING A SCHEDULER AND RATE CONTROL
Annotation
A method of data transmission using a scheduler and a delivery control function in software-defined networks is proposed, and an algorithm for its operation is developed. A possible variant of the hardware implementation of the OpenFlow switch, which performs the processing and transmission of heterogeneous traffic, is considered. The features of the functioning of the main nodes of the switch - the scheduler and the delivery time validator - are described. On the basis of the proposed method, modeling of software-defined networks using the apparatus of Petri nets is carried out. The probabilistic-temporal characteristics of the model are studied, and the method is verified using Petri nets. The effectiveness of the proposed method lies in the fact that the switch load remains constant due to more flexible scheduler settings (instead of using hard timeouts), as well as the possibility of early transmission of standard data.
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