Computer networks are complex and difficult to manage. They involve many kinds of equipment, from routers and switches to middle-boxes such as firewalls, network address translators, server load balancers, and intrusion-detection systems. Creating an application delivery network using such complex and distributed networking approach is very difficult and is often error prone. In this paper we d...

Software-defined networking (SDN), on account of its unprecedented capability of network traffic monitoring and data resource transferring, has been deployed into a wide range of application scenarios. However, typical cyber-attacks which prevail in traditional IP networks, have also mutated their implementation models adjusting to SDN environment. Eavesdropping is one of such attacks and cause...

Emerging technologies such as Software-Defined Networks (SDN) and Network Function Virtualization (NFV) promise to address cost reduction and flexibility in network operation while enabling innovative network service delivery models. However, operational network service delivery solutions still need to be developed that actually exploit these technologies, especially at the multi-provider level...

A new routing algorithm for MPLS(Multi-Protocol Label Switching, MPLS)traffic engineering in SDN-based (Software Defined Network, SDN)satellite switching networks is presented in this paper. LSP(Label Switched Path, LSP)link initial weights are defined as composite functions consisting of link transmission delay, residual bandwidth and BER(Bit Error Rate, BER). Based upon ISL(Inter-Satellite Li...

The role of software and its flexibility is becoming more and more important in todays networks. New emerging paradigms, such as Software Defined Networking (SDN) and Network Function Virtualization (NFV), are changing the rules of the game, shifting the focus on dynamicity and programmability. Perfectly aligned with this new spirit, the FP7 UNIFY European project aims at realizing this appeali...

In this invited paper, software defined network (SDN)based approaches for future cost-effective optical mobile backhaul (MBH) networks are discussed, focusing on key principles, throughput optimization and dynamic service provisioning as its use cases. We propose a novel physical-layer aware throughput optimization algorithm that confirms > 100 Mb/s end-to-end per-cell throughputs with ≥2.5 Gb/...

Since the demand for more bandwidth, agile infrastructures and services grows, it becomes challenging for Service Providers like GÉANT to manage the proprietary underlay, while keeping costs low. In such a scenario, Software Defined Networking (SDN), open hardware and open source software prove to be key components to address those challenges. After one year of development, SDX-L2 and BoD, the ...