Research and training complex of networks with channel and packet switching

In modern world communication enterprises circuit-switched and packet-switching equipment work together. Switched channels equipment usually provides transportation services for packet-switched networks. Therefore, it became necessary to educate students technology of circuit-switched equipment and packet-switched equipment interoperability. To perform this task, educational and research complex was established at PSUTI, which includes a modular network transport equipment (MNTE), as well as switches and routers by Cisco Systems Inc. The paper presents the characteristics of network equipment and management systems «MNTE-Network». MNTE equipment uses two types of modules: linear and tributaries. Linear modules provide high-speed data transmission over fiber-optic lines of STM-1, STM-4. Tributary modules together with linear modules allow creating various network elements - switches and multiplexers. Interactive method of training based on modular network transport equipment and apparatus MNTE Cisco was developed. «MNTE-Network» Management System allows for remote access and configure the network elements (switches and multiplexers). The secure connection (VPN) is made possible with the usage of Cisco made equipment. The flexible structure of teaching and research complex allows students to manage, customize and configure the system, and conduct research.