Fast fault detection for a multiple-plane packet switch

Roberto Rojas-Cessa, Eiji Oki, H. Jonathan Chao

Research output: Contribution to conferencePaperpeer-review


In high-speed and high-capacity packet switches, system reliability is critical to avoid the loss of a huge amount of information and to avoid re-transmission of traffic. We propose a series of concurrent fault-detection mechanisms for a multiple-plane crossbar-based packet switch. Our switch model, called the m + z model, has m active planes and z spare planes. This switch has distributed arbiters on each plane. The spare planes, used for substitution of faulty active ones, are also used in the fault detection mechanism, thus providing sufficient data redundancy for fault detection and location. Our detection scheme is able to detect a single fault in one time slot without increasing transmission overhead. The proposed schemes can be used for switches with different numbers of active planes and the number of spare planes needed for fault detection is small.

Original languageEnglish (US)
Number of pages8
StatePublished - 2001
EventIEEE Global Telecommunicatins Conference GLOBECOM'01 - San Antonio, TX, United States
Duration: Nov 25 2001Nov 29 2001


OtherIEEE Global Telecommunicatins Conference GLOBECOM'01
Country/TerritoryUnited States
CitySan Antonio, TX

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Global and Planetary Change


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