We design and deploy an extended OpenFlow-based control plane for elastic optical networks with DDO-OFDM transmission, detailing the network architecture, the two-phase routing and spectrum assignment algorithm, OpenFlow protocol extensions and the experimental validation. Introduction An elastic optical network (EON), which is able to dynamically and adaptively allocate the necessary optical s...

*(Department of Information Technology, Kalol Institute of Technology, Kalol) ** (Asst. Prof., Department of Information Technology, Kalol Institute of Abstract Software Defined Networking (SDN) approach which allows the network operator to manage network elements using software running on external server. This is accomplished by a split in the architecture between the forwarding element and th...

In this paper, we investigate the allocation of network resources (such as Flow Table entries and bandwidth) in multitenant Software-Defined Networks (SDNs) that are managed by a FlowVisor. This resource allocation problem is modeled as an auction where the FlowVisor acts as the auctioneer and the network Controllers act as the bidders. The problem is analyzed by means of non-cooperative game t...

This paper demonstrates a new class of bugs that is likely to occur in enterprise OpenFlow deployments. In particular, step-by-step, reactive establishment of paths can cause network-wide inconsistencies or performanceand spacerelated inefficiencies. The cause for this behavior is inconsistent packet processing: as the packets travel through the network they do not encounter consistent state at...

—In this paper, we propose a network architecture and a methodology to implement a network simulator and a system prototype for the software defined wireless networks with the reprogrammable capability brought by a SDWN controller. The software defined wireless network architecture oriented for the 5G network is defined with a multi-tiered cloud controller and the Openflow interface. The imple...

We present the design, implementation, and evaluation of an API for applications to control a software-defined network (SDN). Our API is implemented by an OpenFlow controller that delegates read and write authority from the network’s administrators to end users, or applications and devices acting on their behalf. Users can then work with the network, rather than around it, to achieve better per...