Hierarchical Method of Load Balancing Routing on SDN Controllers with Multicore Architecture

In this paper the hierarchical method of load balancing routing on SDN controllers with multicore architecture is proposed. The implementation of a two-level hierarchy of calculations is proposed on the SDN controllers with multicore architecture where the lower level is responsible for calculating the routing variables, and the upper level is for solutions obtained from the lower level coordination. In proposed multicore architecture of SDN controller the border routers of the network will be matched by the controller core, which performs the function of calculation the routing variables. The separate core of the controller will act as a coordinator with function of link overload prevention. Application of the proposed method allows to increase the scalability of routing solutions, reduce the amount of service information that circulates in the network, as well as reduce the complexity of the whole method.