SDN network modeling using the GUI MiniEdit

Existing technologies and methods for building an SDN network with a hybrid, interdomain topology based on the Mininet network emulator, using different types of controllers, are considered. As a result, a segment of the SDN network was created to test the process of its functioning in the overload mode of various information directions based on the MiniEdit GUI. It is a powerful and flexible tool for visualizing the topology of an SDN network, and allows you to: simulate SDN networks of a rather complex structure; change the performance of branches and the magnitude of the load in the directions of communication; create a network-wide overload mode. In the process of modeling, it is possible to determine a number of network performance indicators: the RTT (Round Trip Time) parameter for each information direction; bandwidth of communication links and directions; the amount of delay on network elements, the number of functioning information directions; number of served and lost packets. Although GUI MiniEdit has a number of advantages due to the visualization of the process of building the required custom topology of the SDN network, as well as convenient configuration of network elements, however, in the case of building a domain structure using different types of controllers, it requires additional installation and more complex configuration of external software packages. Also, the editor with a graphical interface does not allow you to explicitly set the rules for the distribution of information flows in case of congestion in certain sections of the network.