The project involved the creation of a data transmission network within the framework of the engineering and information-computing infrastructure of the server group in the office building of the company. In the course of the project implementation a high-performance multi-level infrastructure was built connecting the components of the computing infrastructure located in 23 telecommunication cabinets at speeds of 1/10 Gbit per second. Fault-tolerant interaction of the data center network with a local computer network was implemented.