The Design of Multimedia Multicast System in Campus Network Based on Three-tier Architecture

Abstract

Multimedia network technology is one of the most popular technologies in network application development, such as video conference, network classroom and other multimedia services. However, these services have high requirements for network delay and bandwidth. In addition, Facing the future and the "post epidemic era", aiming at the problem of multimedia application on the network, If we use the usual unicast communication, it will inevitably lead to a serious waste of bandwidth, and greatly increase the burden of the server, which is obviously a pair of contradictions with precious resources; if we use multicast communication, we can reduce this contradiction. This paper introduces multicast technology firstly. Secondly, it puts forward the multicast idea of campus network multimedia system: deploy IGMP snooping protocol in switching Ethernet, and combine VLAN technology. Thirdly, it provides a framework of multimedia multicast system on the campus based on MVC pattern. Then it describes the designing solution particularly and development method of the difficulty. By experiment, this system has good maintainability and expandability. In the multicast communication mode, the network traffic does not increase with the increase of the traffic, and obtains a good subjective quality evaluation. Audio / video transfers fluency, the flux of network reduces, and has a shorter transmission delay.