RTnet: a distributed real-time protocol for broadcast-capable networks

Hanssen, F.T.Y.; Jansen, P.G.; Scholten, Hans; Mullender, Sape J.

doi:10.1109/icas-icns.2005.85

Cited by 8 publications

(5 citation statements)

References 21 publications

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“…Concerning the RTnet stack, its performance was evaluated in [11,12]. In these papers, the implementation of the TDMA-based MAC provided along with RTnet is mainly evaluated.…”

Section: Local and Network Delaysmentioning

confidence: 99%

Evaluation of the real-time properties of open-source protocol stacks

et al. 2011

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At present, two important trends in industrial environments are the adoption of Ethernet-based technologies to interconnect devices and the use of PCs provided with open-source real-time operating systems to execute control applications. This makes the implementation of distributed control systems easier and inexpensive.In these cases, it is of utmost importance that response times concerning the messages exchanged over the network be deterministically bounded. In this paper, the contribution to the end-to-end transmission delay which is due to the latencies introduced by the local protocol stack is analysed through experimental evaluation. In particular, two popular stacks have been taken into account, that is the one provided in conventional Linux and RTnet.

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“…Concerning the RTnet stack, its performance was evaluated in [11,12]. In these papers, the implementation of the TDMA-based MAC provided along with RTnet is mainly evaluated.…”

Section: Local and Network Delaysmentioning

confidence: 99%

Evaluation of the real-time properties of open-source protocol stacks

et al. 2011

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“…The requirements of communication data size and control cycles are analyzed in [3] and they also identifies four types of high-performance communication network [4]. Illustrated the limitation of classical Ethernet solution and verified the compliance of the feasibility of RTNet [5] with the ITER SDN requirements. Though analyze and solutions had explained the network communication implemented in ITER, we pay more attention on private control network that connects various controllers.…”

Section: Introductionmentioning

confidence: 99%

A Timed-Token Based Network for the ITER Poloidal Field Converter Control System

Shen

Gao

et al. 2014

J Fusion Energ

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The control system for poloidal field (PF) in ITER is running in a cluster of distributed controller nodes connected by a soft real-time network. The non-functional performance of network communication, such as latency and jitter, plays an important role in the control system. We analyze the essential of network communication for PF converter control system with stringent real-time requirement and identify the feasibility of the conventional time division method at the request of current data size. However, in order to meet the increased demand for communication data size, we present the design of a timed-token based method and its network scheduler. A test scenario involving a cluster of local control cubicles has been set up to verify the method. The test result shows the timed-token method is more competent to the conventional method and more qualify to the networked control system of PF converter. Meanwhile, in other network with similar architecture, implementation of the timed-token method can guarantee real-time performance as well.

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“…We briefly describe the distributed RTnet network protocol. An extensive description was published earlier [1].…”

Section: Rtnetmentioning

confidence: 99%

“…This paper describes a formal analysis of the RTnet protocol [1]. It is a typical example of a protocol to be used for streaming data in a distributed environment.…”

Section: Introductionmentioning

confidence: 99%

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Verifying the Distributed Real-Time Network Protocol RTnet Using Uppaal

Hanssen

Mader

Jansen

14th IEEE International Symposium on Modeling, Analysis, and Simulation

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RTnet is a distributed real-time network protocol for fully-connected local area networks with a broadcast capability. It supports streaming real-time and non-realtime traffic and on-the-fly addition and removal of network nodes. This paper presents a formal analysis of RTnet using the model checker Uppaal. Besides normal protocol behaviour, the analysis focuses on the fault-handling properties of RTnet, in particular recovery after packet loss. Both qualitative and quantitative properties are presented, together with the verification results and conclusions about the robustness of RTnet.

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RTnet: a distributed real-time protocol for broadcast-capable networks

Cited by 8 publications

References 21 publications

Evaluation of the real-time properties of open-source protocol stacks

Evaluation of the real-time properties of open-source protocol stacks

A Timed-Token Based Network for the ITER Poloidal Field Converter Control System

Verifying the Distributed Real-Time Network Protocol RTnet Using Uppaal

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