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Issue No. 02 - March/April (2011 vol. 8)
ISSN: 1545-5971
pp: 177-193
Marco Serafini , TU Darmstadt, Darmstadt
Péter Bokor , TU Darmstadt, Darmstadt
Neeraj Suri , TU Darmstadt, Darmstadt
Jonny Vinter , SP Swedish National Testing and Research Institute, Boras
Astrit Ademaj , TU Wien, Vienna
Wolfgang Brandstätter , AUDI, Ingolstadt
Fulvio Tagliabò , Centro Ricerche Fiat, Orbassano
Jens Koch , Airbus Deutschland, Hamburg
We present online tunable diagnostic and membership protocols for generic time-triggered (TT) systems to detect crashes, send/receive omission faults, and network partitions. Compared to existing diagnostic and membership protocols for TT systems, our protocols do not rely on the single-fault assumption and also tolerate non-fail-silent (Byzantine) faults. They run at the application level and can be added on top of any TT system (possibly as a middleware component) without requiring modifications at the system level. The information on detected faults is accumulated using a penalty/reward algorithm to handle transient faults. After a fault is detected, the likelihood of node isolation can be adapted to different system configurations, including configurations where functions with different criticality levels are integrated. All protocols are formally verified using model checking. Using actual automotive and aerospace parameters, we also experimentally demonstrate the transient fault handling capabilities of the protocols.
Diagnosis, membership, time-triggered systems, transient faults.

M. Serafini et al., "Application-Level Diagnostic and Membership Protocols for Generic Time-Triggered Systems," in IEEE Transactions on Dependable and Secure Computing, vol. 8, no. , pp. 177-193, 2010.
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