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Supervisory Control and Data Acquisition (SCADA) systems are used in many industries, particularly in the control of nationwide electric grids. These systems may by law, technical obsolescence, or failure, need to be replaced by newer ones. However, the testing and handing over of functions from the old SCADA to the new one (i.e., switchover) has to be done with minimum risk and maximum continuity...
In modern networks, faults in the network state, e.g., loops, black holes and access control violations that make services unavailable, arise commonly. To ensure networks' correctness, existing approaches verify network-wide invariants. However, these approaches cannot detect or prevent faults immediately as they arise, so that network performance is not affected. In this paper, we present a data...
The High-Capacity Central VoIP switch designed by Netas, provides infrastructure and oppurtunities for integration of TDM/ATM networks and new generation IP technologies. Firstly, this new VoIP switch has been deployed for transformation of residental lines into IP networks. While the residental line network transformation is going on, it is seen that the central switches also require more trank carriers...
Multicast is a technology that allows transmission of data efficiently from one server to multiple recipients at once. To use this technology, required devices and systems that support multicast such as router/switch that supports IGMP. Software Defined Networking (SDN) and OpenFlow has emerged as a new paradigm in networking. With SDN, network is no longer closed, proprietary, and difficult to program...
The NATO Secure voice strategy identifies the Secure Communication Interoperability Protocol (SCIP) as the upcoming standard for secure voice communication within the NATO community. In support of the Secure Voice Strategy NC3A has been mandated to establish a NATO SCIP Validation Facility (NSVF) to enable conformance, interoperability and key management testing for NATO Nations. SCIP will enable...
The paper describes an original design of IEEE1149.1 testing bus controller IP core using reusable technology. We have designed the structure of IP core according to the function of IEEE1149.1 testing bus controller. Every function module of IP core was explained detailedly in this paper, including interface of microprocessor module, command control module, TMS creation module, TCK creation module...
In this paper, we present a systematic method for the designing fault tolerant reversible arithmetic circuits for finite field or Galois fields of the form GF(2m). To tackle the problem of errors in computation, we propose error detection and correction using multiple parity prediction technique based on low density parity check (LDPC) code. For error detection and correction, we need additional garbage...
Experimental evaluation as a proof of concept of today's status of IP-OTN interworking were performed. The impact of optical switching on IP traffic and on backbone router performance are reported and potential inter-layer co-ordination schemes are proposed
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