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Software Defined Networking (SDN) has become a popular paradigm for centralized control in many modern networking scenarios such as data centers and cloud. For large data centers hosting many hundreds of thousands of servers, there are few thousands of switches that need to be managed in a centralized fashion, which cannot be done using a single controller node. Previous works have proposed distributed...
In this article the authors examine the concept of software defined network (SDN). In the beginning there is a short historical background of the ”software defined network” as the scientific and technological concept given, by whom it was introduced and what it means. Substantial attention is paid to the OpenFlow protocol. Further, the authors consider development of SDN technology similarly to ideas...
By introducing approaches like the “Smart Factory” and the “Internet of Things”, companies try to ready their manufacturing systems for the needs of the future. The aim is to increase the changeability of these systems through intelligent and self-configuring devices. Prerequisite is an appropriate communication capability down to the lowest sensor level, which is, however, difficult to achieve in...
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