Design and Research of Multicast Experiment Based on PIM-SM and OSPF Protocol

the basic concept of multicast was elaborated. Compared with unicast and multicast, multicast has the advantages of high transmission efficiency and low link load. An experimental multicast network was constructed based on the PIM-SM and IGMP protocols. Routers in the network sent multicast traffic through the PIM-SM and OSPF protocols, while hosts and routers sent multicast traffic through the IGMP protocol. The experimental results were good, and all experimental parameters such as packet loss, delay, and jitter were normal. Through this experimental teaching, students have made long-term progress in mastering multicast knowledge and achieved excellent results in related exams, competitions, and scientific research.