This paper proposes a main and secondary controller assignment model against multiple
controller failures in software defined networks considering latency between switches and …

The controller placement problem (CPP) is one of the key challenges of software defined
networks (SDNs) to increase performance. Given the locations of n switches, CPP consists …

Controller placement problem (CPP) is a key issue for Software-Defined Networking (SDN)
with distributed controller architectures. This problem aims to determine a suitable number of …

The core concept of Software Defined Networking (SDN) is to abstract the control layer from
the data layer. SDN architectures can provide programmatic interfaces in communication …

The software defined networking paradigm decouples the network's control logic (the control
plane) from the underlying routers and switches (the data plane), promoting centralization of …

Software-defined networking paradigm faces many challenges, including reliability,
resiliency, scalability, and availability. These challenges can be tackled by carefully …

Software Defined Networking (SDN) marks a paradigm shift towards an externalized and
logically centralized network control plane. A particularly important task in SDN architectures …

Software Defined Network is one of the most recent Internet technology that manages the
large scale network. Both from implementation and performance point of view SDN will …

The Software Defined Networking (SDN) concept introduces a paradigm shift in the
networking world towards an externalized control plane which is logically centralized. When …

A key concern in the deployment of Software Defined Networks (SDN) is the location of the
controller. One issue network operators will have to face is how to expand their network at …