Modeling and Evaluating NFV-Enabled Network Services under Different Availability Modes
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https://hdl.handle.net/11250/3046386Utgivelsesdato
2019Metadata
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Originalversjon
Tola, B., Nencioni, G., Helvik, B. E., & Jiang, Y. (2019, March). Modeling and evaluating NFV-enabled network services under different availability modes. In 2019 15th International Conference on the Design of Reliable Communication Networks (DRCN) (pp. 1-5). IEEE. 10.1109/DRCN.2019.8713765Sammendrag
Network and Telecom operators are continuously embracing the adoption of Network Function Virtualization (NFV) as a means to provide more agile, flexible and cost-efficient services. Many telecommunication services need to possess carrier-grade quality of service; therefore, future NFV-enabled telecom services should present high levels of availability. In this paper, we present a composed availability model of NFV-enabled network services under different availability modes, namely Standard Availability, Cold Protection, and Hot Protection. We model and analyze the availability of NFV-enabled network services for each of the availability modes aiming at finding the best redundancy configuration to ensure carrier-grade quality. Through discrete-event simulation analysis we are able to identify the most suitable redundancy configuration for each of the availability modes.