In a digital content delivery system, different types of media assets should be distributed to terminals and the sever should define and control the working condition of terminals. Thus communication between severs and terminals is very important. In this paper, a communication solution based on XMPP to support the interaction is proposed. This communication solution has good scalability and security because of using XML data stream, TLS and SASL.%数字内容推送系统需要将不同类型的媒资从服务器端分发到多个终端,并且需要定义和控制终端的工作状态,服务器和终端的通信就显得至关重要,为此提出了以XMPP协议(Extensible Messaging and Presence Protocol)为基础的数字内容推送系统的通信方案.在该方案中,服务器是通过XML数据流与终端通信,并且控制终端的状态,另外引进了TLS和SASL协议,使得该方案具有良好的可扩展性和安全性.
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