Journal of Intelligent Systems and Internet of Things JISIoT 2690-6791 2769-786X 10.54216/JISIoT https://www.americaspg.com/journals/show/808 2019 2019 University of Computer Sciences, Havana, CUBA Yackelyn Dayanys Domínguez Izquierdo Interconnected devices have provided companies and individuals with the advantage that information travels from one place to another, making information processes more viable. The interconnection networks are responsible for providing everything necessary for the machine to have an adequate passage of messages and use of commutations. In this document a design of a LAN network is developed for the area of ​​a library which needs to expand its communication network, thus forming a computer network to connect different types of computers sharing information links. These data links are established through means such as cable, optical cables, or wireless means such as WIFI. 2021 2021 49 53 10.54216/JISIoT.050101 https://www.americaspg.com/articleinfo/18/show/808