Instruments and Systems: Monitoring, Control, and Diagnostics Annotation << Back Segmentation of two-level data transfer networks in distributed information and control systems M.N. YOKHIN, G.P. TEREKHOV, А.А. GORNITSKIY, B.А. GORNITSKIY The approach to the segmentation of two-level networks of sensors and actuators is based on the concept of “network” reliability. An additive criterion is proposed that takes into account the length of the connections and measure the “network” reliability to determine the order of connection gateways according to the master branch and bound method. A method for determining the optimal location gateway on criterion “network” reliability is based on finding the intersection of two nodes paths in the connection tree. One suggested method is placing locks at fixed locations for each segment subsets, providing the minimum length of the media gateways. Keywords: network segment, gateway, “network” reliability, criterion additive, branch and bound method, a simple Hamiltonian path. Contacts: E-mail: mnyokhin@mephi.ru Pp. 20-27.