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Configurable Deployment Descriptor Model in NFV
Journal of Network and Systems Management ( IF 3.6 ) Pub Date : 2020-05-09 , DOI: 10.1007/s10922-020-09531-2
Wassim Sellil Atoui , Nour Assy , Walid Gaaloul , Imen Grida Ben Yahia

The deployment of network services and functions in Network Function Virtualization (NFV) platforms is performed using deployment descriptors. The deployment descriptors describe the topology of the network service and the operation behavior of the network functions along with their resource requirements. They are huge file written manually by service providers devoid of any formal strategy besides experience. Designing those descriptors from scratch is undoubtedly a tedious and complex task given the dynamicity at which the NFV is constantly evolving. Additionally, relying solely on the service provider knowledge is not only error-prone, but also challengeable. Motivated by the design by reuse paradigm, we present in this paper a configurable descriptor model that allows to formalize best practices in designing descriptor models for a specific domain. A configurable descriptor model can be seen as a generic solution that needs to be configured by a service provider to suit the specific requirements of a deployed service. In this way, configurable descriptor models can ease and accelerate the modeling of deployment descriptors by providing an off-the-shelf-solution that can be easily configured in a “plug and play” fashion. Our prototypical implementation demonstrates the feasibility of our approach and the results of our experiments highlight the effectiveness of our proposed model.

中文翻译:

NFV 中的可配置部署描述符模型

网络功能虚拟化 (NFV) 平台中网络服务和功能的部署是使用部署描述符执行的。部署描述符描述了网络服务的拓扑结构和网络功能的操作行为及其资源需求。它们是由服务提供商手动编写的巨大文件,除了经验之外没有任何正式的策略。考虑到 NFV 不断发展的动态性,从头开始设计这些描述符无疑是一项繁琐而复杂的任务。此外,仅依赖服务提供商的知识不仅容易出错,而且还具有挑战性。受重用设计范式的启发,我们在本文中提出了一个可配置的描述符模型,它允许形式化为特定领域设计描述符模型的最佳实践。可配置描述符模型可以看作是一种通用解决方案,它需要由服务提供商进行配置以适应已部署服务的特定要求。通过这种方式,可配置描述符模型可以通过提供可以以“即插即用”方式轻松配置的现成解决方案来简化和加速部署描述符的建模。我们的原型实现证明了我们方法的可行性,我们的实验结果突出了我们提出的模型的有效性。可配置描述符模型可以看作是一种通用解决方案,它需要由服务提供商进行配置以适应已部署服务的特定要求。通过这种方式,可配置描述符模型可以通过提供可以以“即插即用”方式轻松配置的现成解决方案来简化和加速部署描述符的建模。我们的原型实现证明了我们方法的可行性,我们的实验结果突出了我们提出的模型的有效性。可配置描述符模型可以看作是一种通用解决方案,需要由服务提供商对其进行配置,以适应已部署服务的特定要求。通过这种方式,可配置描述符模型可以通过提供可以以“即插即用”方式轻松配置的现成解决方案来简化和加速部署描述符的建模。我们的原型实现证明了我们方法的可行性,我们的实验结果突出了我们提出的模型的有效性。
更新日期:2020-05-09
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