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The Fast ReRoute flow-based model has been improved, where the node and link protection schemes in the linear form were formulated with the implementation of single path and multipath routing strategies. The use of linear-quadratic optimality criterion was substantiated, and the system hierarchy relations of weight coefficients in the objective function were determined with the aim to ensure maximum...
A concept of existing IP-networks reorganization to meet the requirements of VoIP networks deployment at their base has been proposed. The mathematical model of voice calls routing and algorithm based on the model have been developed. The simulation of VoIP system has proved the adequacy of the mathematical model and the efficiency of the algorithm.
The paper proposes a method of hierarchical QoS routing based on reservation of network resources. It describes the case of organization of distributed source routing when one of the border routers consistently solves two interconnected network tasks: calculation of the required routes and determination of the allocation order of link resource to be reserved in order to meet end-to-end QoS-requirements...
In this paper the mathematical model of multicast routing of flows with support shared explicit reservation of link resources is proposed. The proposed model consists of a linear expressions, which are responsible for providing the connectivity of the calculated multicast routes, and also the absence of loops in them. The novelty of the model is the using of conditions of prevention the congestion...
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