(1、 Experiment topic LAN networking. 2、 Experimental purposes 1. Visit the 3S machine room and have a certain understanding of the computer network composition, hardware equipment, etc. 2. Using network equipment, students form local area networks by themselves to cultivate students' practical ability. 3. Enable students to further understand LAN networking technology, cultivate the ability to analyze and solve problems, and improve the ability to query materials and write written documents. 3、 Experiment contents and requirements 1. Understand the composition of LAN and the use of various devices. 2. Set up peer-to-peer network and share files)