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We describe a cloud-based architecture for monitoring large numbers of industrial automation devices. We are interested in massive parallel monitoring of software components controlling critical automation facilities such as factories, mines or oil rigs. Monitoring focuses on post-deployment verification, aiming at discovering specification violations indicating for example bugs or incompatibilities...
In this paper, we evaluate the performance of feedback control with different publish and subscribe architectures. Specifically we look to evaluate the difference between ROS, MQTT, and Kafka under the three network conditions. Our results show that latency alone can not be used to assess performance of a real time control system.
To offer flexible and programmable forwarding plane, we propose a solution from the perspective of system architecture. An extensible forwarding element architecture (EFEA) based on SDN is proposed, in which the core part is three layer forwarding element architecture (TLFEA). It also includes FE OS image service in SDN controller, FE OS image management system, FE OS development system. In order...
There is an immense expectation on Software-Defined Networking (SDN) in industry as a novel approach towards potentially replacing conventional network management and control. However, SDN is not immune to security vulnerabilities which currently exist in the legacy systems or which may newly arise due to change in the network design. Since the beginning of SDN development, primary focus of research...
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...
With the development of semiconductor technology and many-core processors, many-core processors has gradually become mainstream and a hot topic in the field of computer science. With the development of network and all kinds of network applications, the number of network data presents explosive growth, how to achieve the rapid processing of network data has been a problem to be solved. Aimed to resolve...
Traditional networks are surprisingly fragile and difficult to manage. Software Defined Networking (SDN) gained significant attention from both academia and industry, as if simplify network management through centralized configuration. Existing work primarily focuses on networks of limited scope such as data-centers and enterprises, which makes the development of SDN hindered when it comes to large-scale...
Software-defined networking (SDN), which decouples the control plane from traditionally proprietary network devices, is highly flexible and suitable for flow management. However, if the policy depends on the results of network security analysis, the controller will perform complicated packet processing such as packet reassembly and protocol analysis. Such processing will easily overburden the controller,...
Our proposed architecture of dynamically reconfigurable hardware for protocol processing (DRHPP) provides flexibility with high area efficiency. It can be used for a communications system-on-a-chip (SoC) in access networks. The DRHPP enables the modification and addition of various functions for protocol processing. Our architecture consists of three types of cells. The optimized number of these types...
The Recursive InterNetwork Architecture (RINA) is a recently proposed network architecture based on first principles, which promises to solve a number of issues present in the current Internet such as the lack of inherent security. In this paper, we present the experimental evaluation of the first performance-oriented implementation of RINA, the IRATI stack. Our open source stack is designed for GNU/Linux...
Software Defined Networking (SDN) is a new programmable network construction technology that enables centrally management and control, which is considered to be the future evolution trend of networks. A modularized carrier-grade SDN controller according to the characteristics of carrier-grade networks is designed and proposed, resolving the problem of controlling large-scale networks of carrier. The...
Computer networks are becoming increasingly complex and difficult to manage. The research community has been expending a lot of efforts to come up with a general management paradigm that is able to hide the details of the physical infrastructure and enable flexible network management. Software Defined Networking (SDN) is such a paradigm that simplifies network management and enables network innovations...
Software Defined Networks (SDNs), primarily based on OpenFlow, are being deployed in single domain networks around the world. The popularity of SDNs has given rise to multiple considerations about designing, implementing, and operating Software-Defined Network Exchanges (SDXs), to enable SDNs to interconnect SDN islands and to extend SDNs across multiple domains. These goals can be accomplished only...
The control and data planes are decoupled in software-defined networking (SDN), which enables both planes to evolve independently, and brings about many advantages such as high flexibility, programmability, and rapid implementation of new network protocols. However, in order to improve the scalability of the control plane at present, some control functionalities are added to the data plane, which...
Software Defined Networking (SDN) has already gained enormous momentum in the industry. Its innovative architecture that separates the control and forwarding planes allows third-party software developers more leeway in controlling network behavior. Since new protocols and forwarding schemes are needed to produce better network performance, efforts have been put forth in redefining user-defined protocol...
Software defined networking (SDN) has been a promising network architecture to improve the openness of network and the diversity of protocols. Network operating system (NOS) in SDN is a key component for the abstraction of infrastructure and feature-rich protocols, which provide a general control plane and a unified protocol operating view. SDN-oriented NOS design requires not only the control shift...
The Cyber-Physical Energy Systems (CPES) represent a new class of widely distributed and globally interconnected energy systems that integrate computation processes, communication processes and control processes. The architecture design and verification in a CPES development is a key works. In this paper, a new CPES application architecture is proposed based on the features of energy systems, such...
Industrial Control Systems (ICS) are used for operating and monitoring industrial processes. Recent reports state that current ICS infrastructures are not sufficiently protected against cyber threats. Unfortunately, due to the specific nature of these systems, the application of common security counter-measures is often not effective. This paper summarizes experiences over a series of research efforts...
Botnets are extremely versatile and are used in many attacks, for example, sending huge volumes of spam or launching Distributed Denial-of-Service (DDoS) attacks. With the development of network technology, suppressing botnets become more and more difficult. There are many reasons, firstly, the bot master will keep their own botnets as small as possible not only to hide themselves but also to rent...
The GMPLS protocol suite, originally designed to fully operate in a distributed fashion, is currently the reference control plane for WSONs. Recently, the requirement of effective traffic engineering solutions has lead to the standardization of the PCE architecture, thus joining the distributed GMPLS control plane with a centralized network element devoted to path computation. However, the common...
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