A virtual router model with a static and dynamic resource reconfiguration for future internet networking was developed. This technique allows us to create efficient virtual devices with optimal parameters (queue length, queue overflow management discipline, number of serving devices, mode of serving devices) to ensure the required level of quality of service (QoS). An analytical model of a network device with virtual routers is proposed. By means of the mentioned mathematical representation, it is possible to determine the main parameters of the virtual queue system, which are based on the first in, first out (FIFO) algorithm, in order to analyze the efficiency of network resources utilization, as well as to determine the parameters of QoS flows, for a given intensity of packets arrival at the input interface of the network element. In order to research the guaranteed level of QoS in future telecommunications networks, a simulation model of a packet router with resource virtualization was developed. This model will allow designers to choose the optimal parameters of network equipment for the organization of virtual routers, which, in contrast to the existing principle of service, will provide the necessary quality of service provision to end users in the future network. It is shown that the use of standard static network device virtualization technology is not able to fully provide a guaranteed level of QoS to all present flows in the network by the criterion of minimum delay. An approach for dynamic reconfiguration of network device resources for virtual routers has been proposed, which allows more flexible resource management at certain points in time depending on the input load. Based on the results of the study, it is shown that the dynamic virtualization of the network device provides a guaranteed level of QoS for all transmitted flows. Thus, the obtained results confirm the feasibility of using dynamic reconfiguration of network device resources to improve the quality of service for end users.

中文翻译：

---

具有QoS保证的未来网络的虚拟路由器设计和建模

开发了具有静态和动态资源重新配置的虚拟路由器模型，用于将来的Internet网络。该技术使我们能够创建具有最佳参数（队列长度，队列溢出管理规则，服务设备的数量，服务设备的模式）的高效虚拟设备，以确保所需的服务质量（QoS）级别。提出了具有虚拟路由器的网络设备的分析模型。通过上述数学表示，可以基于先进先出（FIFO）算法确定虚拟队列系统的主要参数，以便分析网络资源的利用效率。对于给定强度的分组，到达网络元件的输入接口时，可以确定QoS流的参数。为了研究未来电信网络中QoS的保证水平，开发了具有资源虚拟化的分组路由器仿真模型。该模型将使设计人员能够为虚拟路由器的组织选择最佳的网络设备参数，与现有的服务原理相比，它将为未来的网络中的最终用户提供必要的服务质量。结果表明，使用标准静态网络设备虚拟化技术无法通过最小延迟标准为网络中所有当前流完全提供QoS保证水平。已经提出了一种动态重新配置虚拟路由器的网络设备资源的方法，这允许根据输入负载在某些时间点进行更灵活的资源管理。根据研究结果，表明网络设备的动态虚拟化为所有传输流提供了保证的QoS级别。因此，获得的结果证实了使用网络设备资源的动态重新配置来改善最终用户服务质量的可行性。