Method for composing network views of software defined network controllers, and a software defined network controller

摘要

It comprises the steps of:- abstracting the infrastructure of the first network (N1),- abstracting the infrastructure of the second network (N2),- requesting (QU), from a client (CL), hosted at a cloud service provider (CSP), to a first server (S1) and to a second server (S2), infrastructure maps and cost maps of their respective networks,- computing in the infrastructure map and its cost map of the first server (S1) all the routes that can be selected in the first network, and computing in the infrastructure map and its cost map of the second server (S2) all the routes that can be selected in the second network,- then computing all the possible interconnection links (IL) between at least one route computed in the first network (N1) and all the routes computed in the second network (N2) during the previous step,- then, if there is at least one possible interconnection link (IL) between a first route computed in the first network and a second route computed in the second network, for each possible interconnection, computing the total cost of a path comprising said interconnection, said first route and said second route,- then, if there are several possible paths, selecting the less costly path.