Probability and statistics with reliability, queuing and computer science applications
Probability and statistics with reliability, queuing and computer science applications
Survivability Analysis of Telephone Access Network
ISSRE '04 Proceedings of the 15th International Symposium on Software Reliability Engineering
Reliability and survivability methodologies for next generation networks
Proceedings of the 6th International Conference on Advances in Mobile Computing and Multimedia
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Multi-Services IP Networks are being required to deliver unprecedented high volumes of diverse traffic that span two ends of the reliability requirements spectrum. On one end of the spectrum real-time services such as voice and real time TV require high sensitivity to delays and jitter. On the other end of the spectrum best effort services such as data content delivery services requires zero traffic losses and traffic integrity. This paper focuses on investigating the challenges of measuring the end to end service availability given the different layers of resilience in the hierarchical network architecture. It proposes a layered approach to modeling and measurement of multi-services IP networks from which composite availability/reliability estimation models combining convoluted levels of fault resilience can be derived. The resulting models can be readily used to show a Service Level Agreement reliability measure is met from both the service provider and the end user standpoints.