Research and Development of the Secure Routing Flow-Based Model with Load Balancing
DOI:
https://doi.org/10.30837/pt.2021.2.01Abstract
The article is devoted to developing and researching the model of secure routing with load balancing in SD-WAN-based networks. In addition, an analysis of numerical research results using Python, GEKKO Optimization Suite, and NumPy has been carried out. The technical task of secure routing with load balancing was formulated as an optimization problem with quadratic optimality criterion. Such a criterion form allows for balancing the flow shares transmitting in the network. The simulation results showed that the link load (namely, the transmitted part of the flow) under study decreases with an increased probability of the link compromise. The analysis of the calculated results revealed the value of the security and performance ratio metric when the model is most sensitive to the network link compromise probability deterioration. That is, the best sensitivity of the model to the network security indicator (compromise probability) appears when the ratio between performance and security metric takes values of 100 to 300. Therefore, the presented model of secure routing with load balancing with an additive metric that accounts for network performance and security allows using network resources more efficiently but also considers the link compromise probability in making routing decisions.
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