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Ｉｎｔｅｒｎｅｔ越来越成为人们信息交流的重要媒体，但是传统Ｉｎｔｅｒｎｅｔ基于ＩＰ协议的尽力（ｂｅｓｔ－ｅｆｏｒｔ）传送模型，满足不了实时业务的ＱｏＳ要求。根据当前技术的最新进展，介绍基于ＲＳＶＰ协议的资源预留机制，分析在Ｉｎｔｅｒｎｅｔ上采用ＲＳＶＰ协议实现有ＱｏＳ保障的业务时存在的问题和解决对策。
The Internet has become an important medium for people’s information exchange more and more. However, the best Internet delivery model based on IP protocol can not meet the QoS requirements of real-time services. According to the latest progress of the current technology, the resource reservation mechanism based on RSVP protocol is introduced, and the problems and solutions in implementing QoS guaranteed services using the RSVP protocol on the Internet are analyzed.