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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...
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...
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