Dynamic Switch Migration Method Based on QoE- Aware Priority Marking for Intent-Based Networking

Intent-Based Networking (IBN) is the beginning of a new era in network technology history. The basic principle can be formulated as follows: the network independently transforms business intentions into corresponding configurations of a network for all devices. The idea is not new, but the automation of network management has recently become increasingly common with the advent of SDN (Software-defined Networking) technology in certain parts of the network. This paper describes the switch migration process between multiple SDN controllers. It is suggested that you consider Quality of experience (QoE) priorities of traffic during the migration process. This is necessary for more efficient use of the network resources and ensuring the necessary level of Quality of Service (QoS). Each subscriber of the network independently selects the required QoE value (from 1 to 5). The higher the value is, the better quality the subscriber expects. These QoE values are also taken into account in the network traffic maintenance, so they are very important. Schemes of the switch migration stages are presented. A comparative analysis of switch migration without taking into account QoE priorities and with them is made. The advantages and disadvantages are analyzed.