Abstract Software Defined Networking (SDN) decouples control and data planes. The
separation arises a problem known as the controller placement, ie, how many and where …

In this letter, we propose a mathematical model for the controller placement problem in
Software Defined Networks (SDN). More precisely, given a set of switches that must be …

Software Defined Networking (SDN), the novel paradigm of decoupling the control logic from
packet forwarding devices, has been drawing considerable attention from both academia …

Software defined networking (SDN) offers centralized network management and effective
resource utilization by offloading the intelligent control plane, responsible for routing and …

The software-defined network (SDN) approach assumes a logically centralized control
plane, which is physically decoupled from the data plane. Since this approach simplifies …

In this paper we address the problem of Software Defined Networking (SDN) controller
placement in large networks. Indeed, to solve the scalability issue raised by the centralized …

Controller placement is a key problem in software defined networks (SDNs). Previously, the
solution to this problem only focused on propagation latency but ignored the load of …

In order to simplify the management of the traditional network, software-defined networking
(SDN) has been proposed as a promising paradigm shift that decouples control plane and …

Software defined networking emerges as a promising paradigm shift that decouples the
control plane from the data plane. It has the ability to centrally monitor and control the …

Recently, a variety of solutions have been proposed to tackle the controller placement
problem in SDN. The objectives include minimizing the latency between controllers and their …