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Software Defined Network (SDN) is disruptive networking technology. In this paper, we will address some of the major vulnerable areas in SDN. We express some of the unique ways that an adversary can use to attack either the SDN controller or the communication devices. We have used a policy based approach to mitigate these attacks towards the SDN domain. We have implemented our Policy Based approach...
Software Defined Networks provide the ability to manage networks from a centralised point through separating control plane from the data plane. This brings opportunities in terms of manageability, flexibility and cost savings in network operations. This centralisation, however, also brings about a potentially serious performance bottleneck and poses a scalability issue in high performance networks...
Protecting control planes in networking hardware from high rate packets is a critical issue for networks under operation. One common approach for conventional networking hardware is to offload expensive functions onto hard-wired offload engines as ASICs. OpenFlow networks are expected to provide greater network control flexibility by an open interface to the packet-forwarding plane and by centralized...
In this paper, a realtime testbed for Software Defined Networks (SDN) was implemented using Raspberry Pi as OpenFlow (OF) switches. The implemented testbed provides practical development and testing environment for SDNs. Open vSwitch (OVS) was used to observe the flows and events in the network. With the POX integration, this paper easily provide detailed analysis results for any testing process....
Software-Defined Networking (SDN) is an emerging technology that controls network by using software. OpenFlow switches have predefined actions to be executed by the controller, but if any undefined actions need to be executed on given packets, they are transferred to the controller by the exception mechanism called Packet-In and processed there. When we execute undefined custom actions with Packet-In...
The European XFEL project is a free electron linear particle accelerator located in Hamburg, Germany, currently being developed by DESY and to be launched later this year. The particle accelerator is controlled by RF control system, built as a chain of RF stations bound to cryomodules across the tunnel. Each RF station has a set of additional devices, that are used to control particular parts of the...
Fault localization is a core element in SDN networkmanagement. Many SDN fault reasoning and verificationtechniques assist operators focus on either analyzing the controlplane configuration or checking the data plane network behavior. These solutions are limited in that they cannot correlate networksymptoms between the control and the data planes, and areharder to generalize across protocols since...
Communication interface for hardware-in-the-loop (HIL) simulation, a technique that assists with verification and validation of embedded systems, is a bridge between real hardware and simulated environment. A multiprotocol interface is adopted in the HIL system for testing onboard software of the Alpha Magnetic Spectrometer (AMS). We propose a modular design to manipulate the interface with an enhanced...
Software Defined Networking (SDN) is an innovative approach to networking architecture that opens up avenues to create a whole new class of networking functionality. While data centre networks are steadily adopting the SDN approach with considerable success, other areas of networking such as network access control, load balancing and traffic classification remain nascent. Traffic classification in...
Software Defined Network (SDN) is the latest network architecture in which the data and control planes do not reside on the same networking element. The control of packet forwarding in this architecture is taken out and is carried out by a programmable software component, the controller, whereas the forwarding elements are only used as packet moving devices that are driven by the controller. SDN architecture...
New technologies and services provided by Internet Service Providers (M2M, clouds, online-games, HD-video), lead to the constant growth of traffic per a single subscriber. This forces operators to increase network capacity even for processing traffic generated by existing subscribers. Under the circumstances of an overloaded radio network (common situation in large cities) subscribers often don't...
Network virtualization introduces two concepts: slice (i.e., virtual network), which consists of virtual nodes and links, and slice developer, which is the third role in networks. Slice developers can introduce new network services by using slices. A method for introducing new types of virtual nodes and links for new services into the slice-definition language and the virtualization infrastructure...
In the paper a programmable management framework for SDN networks is presented. The concept is in-line with SDN philosophy - it can be programmed from scratch. The implemented management functions can be case dependent. The concept introduces a new node in the SDN architecture, namely the SDN manager. In compliance with the latest trends in network management the approach allows for embedded management...
The remote measurement and control platform break the traditional measurement and control system is mainly single way to communicate to the GPIB bus, introduction the Ethernet MAC, RS232, CAN, including today's mainstream communication interface. with AT91RM9200 core production embedded hardware platform, while RTOS effective and flexible software and hardware task scheduling operation, the platform...
A high-resolution water display system(WDS) has been developed, which provides a new viewing modality for text/graphic information, unlike traditional display screens which use the brightness/color of built-in array of pixels on a flat panel to display information contents. The WDS has no fixed display screen which usese an array of water nozzles to precisely control the timing of water drops so that...
Industrial automation and control systems are composed out of logically interconnected but physically separated software components. Subcomponents of such systems often require diverse communication links with different protocols and specific quality of service (QoS) constraints. These QoS requirements for communication have an important impact to the overall system design and must be considered during...
This paper investigates the use of Ethernet/IP communications protocol for data acquisition and control of electrical networks in an industrial environment. A high-speed communication connection among all the devices operating in a distribution network using breakers, contactors, relays, power meters and other devices may allow a large amount of data to be exchanged to and from an industrial/utilities...
The dynamic reconfiguration technique based on FPGA (field-programmable gate array) can improve the resource utilization. The dynamic reconfiguration principles and methods are discussed. A remote dynamic reconfiguration scheme using Xilinx Virtex-II FPGA and SMCS Ethernet PHY (physical layer transceiver) is proposed. The hardware of system is designed with Xilinx Virtex-IIXC2V30P FPGA that embeds...
In this paper, a distributed control model based on CAN bus protocol is put forward to solve the problems of dissimilar bus units, various signal lines and jamming signal existing in the centralized control model of underwater detection system (UDS). According to the requirements of modular, low power, real-time communication in the design of system, this paper introduces the hardware and software...
Highly sophisticated control systems are a driving force for innovation in automotive electronics. However, the integration of these systems within current and future vehicle projects is facing a complexity problem. Established methods of realizing such control systems need to be revised. A promising approach to address these problems is to use deterministic time-triggered technologies within automotive...
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