TRAFFIC-DRIVEN NETWORK CONTROLLER PLACEMENT IN SOFTWARE-DEFINED NETWORKS

摘要

A method and an apparatus that allocate controllers in an SDN are described. The SDN may comprise a plurality of switches, each switch having a selection likelihood and one or more assignment likelihoods. Possible values of the selection likelihood and the assignment likelihoods of each switch may be identified subject to allocation constraint imposed on one or more controllers of the SDN. A set of values from the possible values of the selection likelihood and the assignment likelihoods of each switch can be selected. The set of values selected can be rounded to integer values respectively. And the controllers of the SDN can be allocated based on the integer values.