Today’s mobile customers desire to remain connected anywhere, at any time, and using any device. This phenomenon has encouraged mobile network operators to build complex network architectures by incorporating new features and extensions, which are harder to manage and operate. In this article we propose a novel and simplified architecture for mobile networks. The proposed architecture, which we call CSDN…
Omnet++ Simulator
Bootstrapping Software Defined Network for flexible and dynamic control plane management
To improve reliability and performance of Software Defined Networking (SDN) architectures, a number of recent efforts have proposed a logically centralized but physically distributed controller design that overcomes the bottleneck introduced by a single physical controller. Despite these advances, two key problems still persist. First, the task of controlling the host network and the task of controlling the control-plane network remain tightly intertwined,…
Round-robin based load balancing in Software Defined Networking
These days our networks have to handle large amount of traffic, serve thousands of clients. It is very difficult for a single server to handle such huge load. The solution is to use multiple servers with load balancer acting as a front end. The clients will send the requests to the load balancer. The load balancer will…
Towards trusted software-defined networks using a hardware-based Integrity Measurement Architecture
The rise of software-defined networks in recent years has allowed unprecedented agility in networkconfiguration and orchestration. As physical links and configurations become virtualised, this has created many opportunities for dynamic and transparent deployment of services. This however, opens up a potential attack surface for new forms of attack. Thus, with the combination of SDN elements abstracting their administration to network administrators…
Quality of service control and resource prioritization with Software Defined Networking
In this study, we aim to analyze how Software Defined Networking (SDN) can help to ensure a high-quality uninterrupted Voice over Internet Protocol (VoIP) service accompanied by video for prioritized users and entities in a network congested with background traffic. Guaranteeing a level of Quality of Service (QoS) and resource prioritization are key concepts for future networks (e.g, 5G, NGSON) and may be…
Toward terabit autonomic optical networks based on a software defined adaptive/cognitive approach [invited]
Terabit elastic optical networking (EON) is foreseen as a viable solution to extend the lifetime of anetwork exploiting the available bandwidth in previously deployed optical fibers. EON is based on bandwidth-variable transponders capable of supporting multiple bit rates and/ or modulation formats according to traffic requirements and node architectures that route arbitrary channel band-widths. Thus, EON increases the…
Mobility-aware QoS assurance in software-defined radio access networks: An analytical study
Software-defined networking (SDN) has gained a tremendous attention in the recent years, both in academia and industry. This revolutionary networking paradigm is an attempt to bring the advances in computer science and software engineering into the information and communications technology (ICT) domain. The aim of these efforts is to pave the way for completely programmable networks and control-data plane separation. Recent studies on…
Customizable Autonomic Network Management: Integrating Autonomic Network Management and Software-Defined Networking
The increased complexity of emerging and future networks and services requires the use of sophisticated but simplified management and control that will minimize the burden of human presence and manual operation. Autonomic network management (ANM), on the one hand, and software definednetworking (SDN), on the other hand, have appeared with the promise to meet these requirements and enhance the efficiency of the…
Rethinking virtual private networks in the software-defined era
Multi Protocol Label Switching (MPLS) Virtual Private Networks (VPNs) have seen an unparalleled increasing adoption in the last decade. Although their flexibility as transport technology and their effectiveness for traffic engineering are well recognized, VPNs are difficult to set up and manage, due to the complexity of configurations, to the number of involved protocols, and to the…
Programmable hardware in software defined networking
Summary form only given. Software presents performance difficulties if it is the sole means of allowing programmability in high-speed optical SDN and NFV. Programmable hardware offers an ideal companion for implementing flexible SDN data planes and accelerating NFV functions.