Download e-book for iPad: Dependable Computing: Third Latin-American Symposium, LADC by Philip Koopman (auth.), Andrea Bondavalli, Francisco

By Philip Koopman (auth.), Andrea Bondavalli, Francisco Brasileiro, Sergio Rajsbaum (eds.)

ISBN-10: 3540752935

ISBN-13: 9783540752936

ISBN-10: 3540752943

ISBN-13: 9783540752943

This booklet constitutes the refereed complaints of the 3rd Latin-American Symposium on responsible Computing, LADC 2007, held in Morelia, Mexico, in September 2007.

The 14 revised complete papers offered including invited talks and descriptions of 3 tutorials and panel classes have been rigorously reviewed and chosen from 37 submissions. The papers are prepared in topical sections on fault-tolerant algorithms, software program engineering of responsible platforms, networking and cellular computing, experimental dependability evaluate, in addition to intrusion tolerance and security.

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Extra resources for Dependable Computing: Third Latin-American Symposium, LADC 2007, Morella, Mexico, September 26-28, 2007. Proceedings

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Assuming a finite arrival model has the following implications: – Each system run can be divided in two intervals of time: a first finite interval in which joins and leaves take place (perturbed period ) and then an infinite period of time in which no more join and leave occurs (quiescent period ). The perturbed period lasts for an unknown time. – The overlay has an unknown (but finite) size where process failures accumulate over time as processes join. Thus, the number of failures tend to an arbitrary large number as time passes and the proportion among the total number of processes and faulty ones, at any time, is arbitrary2.

Regarding the communication-efficient algorithms, the aforementioned effect caused by the circulating lists produces worse results, partially mitigated in the improved version. 6 Conclusion In this paper, we have explored communication efficiency, a performance parameter that refers to the number of unidirectional links that carry messages forever. We have shown that failure detector class ✸P requires at least C unidirectional links to carry messages forever, being C the number of correct processes.

Several approaches have been proposed in order to decrease BGP’s convergence latency and/or to avoid its consequences. Recently, Sahoo et al. [13] presented a strategy for adjusting BGP parameters, specially MRAI (Minimum Route Advertisement Interval) and for reducing the processing overhead of routers, allowing the reduction of the convergence latency after large-scale failures. A set of tools for monitoring BGP routers, as well as determining relevant events that may result in routing anomalies are presented in [14].

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Dependable Computing: Third Latin-American Symposium, LADC 2007, Morella, Mexico, September 26-28, 2007. Proceedings by Philip Koopman (auth.), Andrea Bondavalli, Francisco Brasileiro, Sergio Rajsbaum (eds.)


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