Experiences with EtheReal: a fault-tolerant real-time Ethernet switch

The evolvable hardware (EHW) is widely used in the design of fault-tolerant system. Fault-tolerant system is really a real-time system, and the recovery time is necessary in fault detection and recovery. However, when applying EHW, real-time characteristic is usually ignored. In this paper, a fault-tolerant strategy based on EHW is proposed. The recovery time, predicted by the fault tree analysis (FTA), is considered as a constraint condition. A configuration library is set up in the design phase to accelerate the repair process of the anticipated faults. An evolvable algorithm (EA) based on similarity is applied to evolve the repair circuit for the unanticipated faults. When the library reaches the upper, the target system is reconfigured by the EA-repair technology. Extensive experiments are conducted to show that our method can improve the fault-tolerance of the system while satisfying the real-time requirement on FPGA platform. In a long run system, our method can keep a higher fault recovery rate.

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A Design for Fault-Tolerant Communication Middleware Based on Time-Triggered

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.548-549.1326 ◽

2014 ◽

Vol 548-549 ◽

pp. 1326-1329

Author(s):

Juan Jin ◽

Qing Fan Gu

Keyword(s):

Fault Tolerance ◽

Real Time ◽

Fault Location ◽

Fault Tolerant ◽

Application Software ◽

Tolerance Mechanisms ◽

The Real ◽

Communication Middleware ◽

Fault Mechanism ◽

Health Diagnosis

Against to the unsustainable problems of health diagnosis, fault location and fault tolerance mechanisms that existing in the current avionics applications, we proposed a fault-tolerant communication middleware which is based on time-triggered in this paper. This middleware is designed to provide a support platform for applications of the real-time based on communication middleware. From the communication middleware level and also combined with time-triggered mechanism and fault-tolerant strategy, it diagnoses the general faults first, and then routes them to the appropriate fault mechanism to process it. So the middleware completely separates fault-tolerant process from the application software functions.

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Ethernet switch controller design for real-time control applications

Proceedings of the 2004 IEEE International Conference on Control Applications, 2004. ◽

10.1109/cca.2004.1387254 ◽

2005 ◽

Author(s):

Feng-Li Lian ◽

Yang-Chung Tu ◽

Chun-Wei Li

Keyword(s):

Real Time ◽

Controller Design ◽

Real Time Control ◽

Control Applications ◽

Time Control ◽

Ethernet Switch

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Determining redundancy levels for fault tolerant real-time systems

IEEE Transactions on Computers ◽

10.1109/12.364540 ◽

1995 ◽

Vol 44 (2) ◽

pp. 292-301 ◽

Cited By ~ 35

Author(s):

Fuxing Wang ◽

K. Ramamritham ◽

J.A. Stankovic

Keyword(s):

Real Time ◽

Fault Tolerant ◽

Real Time Systems ◽

Time Systems

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