29/2000 : Tolerating Arbitrary Node Failures in the Time-Triggered Architecture

RR Number

29/2000

Conference

SAE 2001 World Congress, March 2001, Detroit, MI, USA

Author(s)

Hermann Kopetz, G�nther Bauer, Stefan Poledna

Abstract

The Time-Triggered Architecture (TTA) is a distributed architecture for high-dependability real-time systems such as break-by-wire or steer-by-wire systems. This paper is devoted to the fault-tolerance and fault-handling capabilities of the TTA. We will present the architectural and algorithmic features of the time-triggered communication protocol TTP/C that allow isolation of arbitrary failures of a node-computer in the distributed system. Having node failures isolated, the introduction of redundant nodes accompanied by voting services located in a generic fault-tolerance layer makes the architecture tolerant to Byzantine failures of node-computers. We will also present the mechanisms that detect multiple failure scenarios at the communication system level and provide means for rapid handling of and deterministic recovery from such situations. Based on a sample brake-by-wire application we will provide some figures concerning the performance of the architecture and discuss how the system engineer benefits from the inherent properties of the TTA.

Bibtex

@article{ kopetz:2000-29,
  author =       "Hermann Kopetz and Günther Bauer and Stefan Poledna",
  title =        "Tolerating Arbitrary Node Failures in the Time-Triggered Architecture",
  journal =      "SAE 2001 World Congress, March 2001, Detroit, MI, USA",
  year =         "2001",
  month =        "Mar."
}

Download

Get 2001-01-0677.pdf - Adobe PDF-format, (61.01 KB; posted at December 18 2001; )