Research and Application of Multimedia E-learning System Based on IGMP Snooping Multicast

Abstract

E-learning is not limited to distance education, it can also play an important role in the campus network. It requires higher bandwidth and lower latency. At present, E-learning runs in Switched Ethernet environment, and almost all of them use broadcast mode to process multicast data, which is not real multicast, which seriously wastes network bandwidth and host resources. Therefore, in order to make full use of campus network bandwidth, the author developed "Multimedia E-learning System based on IGMP Snooping Multicast", which was tested in the campus network LAN. This paper introduces multicast address firstly. Secondly, it puts forward the IGMP snooping. Finally, the implementation of audio / video in campus network multimedia system is given by using Java Media Framework (JMF) technology. At present, the system works well, and the audio / video transmission is smooth and natural. Using Ethernet peek real-time network protocol analyzer to monitor data packets, verify the feasibility of the two-layer multicast scheme, the system realizes true layer-2 multicast.