Fault-tolerant communication in invasive networks on chip

Jan Heisswolf, Andreas Weichslgartner, Aurang Zaib, Stephanie Friederich, Leonard Masing, Carsten Stein, Marco Duden, Roman Klopfer, Jurgen Teich, Thomas Wild, Andreas Herkersdorf, Jurgen Becker

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Scopus citations


Dependability and fault tolerance will play an ever increasing role when using future technology nodes. The paper presents a fault-tolerance strategy for invasive networks on chip (i-NoC). The strategy focuses on permanent faults, resulting from either process fluctuations or aging effects and briefly outlines counter measurements against transient faults. We propose a scalable scheme for detection and localization of defects in NoCs. The localization scheme is used as a basis for disabling faulty routers. We propose a transparent bypass scheme to circumvent faulty routers and regions. It uses an architecture extension in the form of an additional lightweight network layer. The fault tolerance layer can be configured at run time according to the current fault map of the architecture. The presented evaluations analyze the fault coverage of the proposed detection and localization strategy. We also investigate the implementation cost and performance impact of the fault tolerance network layer.

Original languageEnglish
Title of host publication2015 NASA/ESA Conference on Adaptive Hardware and Systems, AHS 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781467375016
StatePublished - 31 Aug 2015
EventNASA/ESA Conference on Adaptive Hardware and Systems, AHS 2015 - Montreal, Canada
Duration: 15 Jun 201518 Jun 2015

Publication series

Name2015 NASA/ESA Conference on Adaptive Hardware and Systems, AHS 2015


ConferenceNASA/ESA Conference on Adaptive Hardware and Systems, AHS 2015


  • Containers
  • Fault tolerance
  • Fault tolerant systems
  • Ports (Computers)
  • Routing
  • Switches
  • Testing


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