Abstract

Multicast based audio/video collaboration is one of representative applications in next generation internet. IP multicast has the advantage of saving bandwidth for group communication on large scale collaboration. The lack of ubiquitous multicast supporting and lack of effective service for multicast based A/V collaboration limit its application. This paper introduces the service and management of multicast based audio/video collaboration on China education and research network (CERNET). The multicast service, user and session management, performance monitoring and flow control are presented. The collaboration system has been applied on CERNET successfully.

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