Network security is a crucial issue of Software Defined Networking (SDN). It is probably, one of the key features for the success and for the future pervasion of the SDN technology. In this perspective, we propose a SDN reactive stateful firewall. Our solution is integrated into the SDN architecture. It filters TCP communications according to the network security policies. It records and proces...

Network virtualization has become increasingly popular in recent years. It has the potential to allow timely handling of network infrastructure requests and, after instantiated, their lifecycle. In addition, it enables improved physical resource utilization. However, the use of network virtualization in large-scale, real environments depends on the ability to adequately map virtual routers and ...

The transfer of large volume data over computer network is important and unavoidable operation in the past, now and in any feasible future. There are a number of methods/tools to transfer the data over computer global network (Internet). In this paper the transfer of data over Internet is discussed. Several free of charge utilities to transfer the data are analyzed here. The most important arch...

Software-defined Networking (SDN) marked the beginning of a new era in field networking by decoupling control and forwarding processes through OpenFlow protocol. The Next Generation SDN is defined Open Interfaces full programmability data plane. P4 domain-specific language that fulfills these requirements has known wide adoption over recent years from Academia Industry. This work an extensive s...

Worldwide, electrical grids are developing into smart grids. To ensure reliability, robustness and optimized resource usage, these grids will need to rely heavily on modern information and communication technologies. To support the achievement of these goals in communication networks, we evaluated the possibility of using software-defined networking (SDN) infrastructure based on OpenFlow, to pr...

The massive number of connected devices combined with an ever increasing volume of data traffic push network operators to their limit by limiting their profitability. Software-Defined Networking (SDN), which decouples network control logics from forwarding devices, has been proposed to tackle this problem. An important part of the SDN concepts is implemented by the OpenFlow protocol that abstra...