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In this paper, we propose two simple and practically feasible countermeasures to address the Route Spoofing and Resource Exhaustion attacks in Software Defined Networking (SDN) scenarios. For Route Spoofing attack, we introduce a new technique called “selective blocking” which blocks an adversary node to use a genuine user's active routes, and for Resource Exhaustion attack, we propose a “periodic...
Internet-of-Things (IoT) is emerging as one of the popular technologies influencing every aspect of human life. The IoT devices equipped with sensors are changing every domain of the world to become smarter. In particular, the majorly benifited service sectors are agriculture, industries, healthcare, control & automation, retail & logistics, and power & energy. The data generated...
Quality of Service (QoS) in networking is a way of managing the network resources effectively. QoS has been widely used in traditional network and can also be implemented in Software Defined Network (SDN). Software Defined Network is a new network paradigm that decouples the control plane from the data plane in the network and thus create a network that is scalable, dynamic and easily manageable....
Most applications running on supercomputers achieve only a fraction of a system's peak performance. It has been demonstrated that the co-scheduling of applications can improve the overall system utilization. However, following this approach, applications need to fulfill certain criteria such that the mutual slowdown is kept at a minimum. In this paper, we present an HPC scheduler that applies co-scheduling...
Computing systems produce large amounts of system log information at a scale wildly disproportionate to the growth of computing and bandwidth resources. This growth outpaces the ability of human auditors and administrators to digest such quantities of data via manual analysis. This situation is only expected to worsen over time as more and more data become available due to expanded technological reach...
In this work, we seek to gain an understanding of the InfiniBand network processing limitations that might exist in gathering performance metric information from InfiniBand switches using our new LDMS ibfabric sampler. The limitations studied consist of delays in gathering InfiniBand metric information from a specific switch device due to the switch's processor response delays or RDMA contention for...
In Infrastructure as a Service clouds, customers lease virtual resources (e.g., CPU, memory, network) offered by cloud providers, paying for the allocated capacity of resources, regardless of their effective use. In this context, it is in the interest of the customers to reserve resources with sufficient capacity so that their applications achieve good performance while, at the same time, minimizing...
The paper introduces a design of radio spectrography receiver that shall serve as equipment for reception, monitoring, and processing of solar radio bursts. These burst can affect operation of many radio communication and navigation services as is presented on example of GPS satellites signal degradation. The concept and design of the spectrography receiver is presented together with discussion of...
The emergence of power efficiency as a primary constraint in processor and system designs poses new challenges concerning power and energy awareness for numerical libraries and scientific applications. Power consumption also plays a major role in the design of data centers in particular for peta- and exa-scale systems. Understanding and improving the energy efficiency of numerical simulation becomes...
A trend has emerged toward the development of critical systems hosted on the Ethernet databus. Ethernet enjoys unprecedented standardization in commercial networks, and a vast network of engineers with training and experience. It is now commonly known that implementations of deterministic Ethernet for avionics networks known as ARINC 664 part 7 exist on several commercial airframes. In other platforms,...
The paper presents the design and implementation of an integrated wireless network that support to the multiparametric geophysical monitoring network of the Campi Flegrei volcanic area. The wireless network is equipped with a tool for real-time monitoring and fault detection. The enhancement of the transmission system with respect to the previously existing one has been realized in view of the increased...
The advances in wireless low-power sensors and the increasing demand for portable healthcare monitoring systems have inspired the realization of Wireless Body Sensor Networks (WBSNs). IEEE Std. 802.15.6 defines the communication protocol for WBSN applications in terms of physical and medium access layers. The high generality and flexibility of standard requirements poses the question of how WBSN parameters,...
Network traffic captures are necessary for a variety of security applications like identification of malicious patterns or training of intrusion detection systems. While monitoring of enterprise networks is common practice, it is rarely done for industrial production environments due to low bandwidth, confidential production data and sensitive legacy components. To address these challenges, we present...
This paper presents experimental results of a stable time-varying IIR narrow multi-band-stop filter. The design and stability check procedures have been shown. The experimental hardware used to conduct the measurement of the ECG was presented. The concept of the time-varying coefficients was used in order to reduce the transient time of the filtering structure. The advantages of the proposed methodology...
Network management requires both awareness of the status of the network and the ability to manage key systems to maintain full network efficiency. OrderNet is an application layer protocol which rides within existing message sets to manage heterogeneous networks. This paper summarizes the analysis of alternatives performed that selected OrderNet as a promising technology for the monitoring, management,...
To address issues such as increasing number of broadcasting satellite transponders, signal systems becoming increasingly complex and higher requirements on spectrum monitoring in respect of real-time and all-weather coverage are required, this paper introduces a spectrum monitoring equipment based on a high-performance ARM microprocessor platform, as well as the design and implementation of a new...
Monitoring the physical layer is key to detect bit error rate (BER) degradation caused by failures and to identify the cause of the failure and localize the failed elements. Once the failure has been detected, actions can be taken to reduce as much as possible its impact on the network. Commercially available optical equipment are able to correct degraded optical signals by means of Forward Error...
Many online application services are now provided by cloud-deployed VM clusters. Although economical, VMs in the cloud are prone to interference due to contention for physical resources among colocated users. Worse, this interference is dynamic and unpredictable. Current provider-centric solutions are application-oblivious and are thus not always aware of the user's SLO requirements or application...
Software-Defined Networking (SDN) is an innovative approach to provisioning and delivering QoS (Quality of Service) services, yet it is still devoid of context-differentiating services. In this paper we propose a network application (Autonomic QoS Broker) and a controller module that implements the OpenVSwitch Database Management Protocol (OVSDB). These two components were implemented and validated...
This paper focuses on the wireless monitoring sensor networks (WMSNs), where provide relay connectivity for the low capacity and power devices to monitor or sense the events in a monitoring area. In this paper, we propose the relay OFDMA resource allocation methods of coloring resource allocation, static resource allocation and dynamic resource allocation to improve the finite resource of time and...
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