Performance models of NFV-based hybrid systems for delay-sensitive services
Performance models of NFV-based hybrid systems for delay-sensitive services
复制标题
用于延迟敏感服务的基于 NFV 的混合系统的性能模型
DOI：
10.1007/978-3-030-91825-5_11
复制
发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Phung-Duc Tuan
中科院分区：
文献类型：
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作者：
Sato Mitsuki;Kawamura Kohei;Kawanishi Ken'ichi;Phung-Duc Tuan
近年来在云计算中广泛部署的NFV(Network Functions Virtualization)技术是提供网络服务必不可少的技术。NFV在节省运营成本方面非常有用，因为VNF(虚拟网络功能)是通过扩展/扩展虚拟机来动态创建的。另一方面，利用由遗留设备提供的现有计算资源，因此不具有分配虚拟计算资源的适应性，对于维持所需的性能具有重要意义。在本文中，我们提出了利用NFV技术和传统网络设备的混合系统的排队模型。这类系统的例子包括5G网络系统。我们重点研究了提供延迟敏感的实时服务的场景，特别是对延迟性能进行了评估。
NFV (Network Functions Virtualization) technology widely deployed in recent cloud computing is essential to provide network services. NFV is useful for saving operational cost because VNFs (Virtualized Network Functions) are created dynamically by scaling in/out virtual machines. On the other hand, utilizing existing computing resources, which are provided by legacy equipments and thus do not possess adaptive property of allocating virtual computing resources, is of importance to contribute for maintaining the required performance. In this paper, we propose queueing models of hybrid systems that utilize the NFV technology as well as legacy network equipments. Examples of such systems include 5G networks systems. We focus on a scenario of providing delay-sensitive real-time services, and in particular evaluate the delay performance.