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PRP技术是IEEE 802.17定义的一种在环型结构上优化数据业务传送的新型MAC层协议,能适应多种物理层,可以有效地传送话音、数据、视频等多种类型的业务。介绍了RPR(弹性分组环)的技术特点、实现方案以及在城域传送网中的应用。
PRP technology is a new MAC layer protocol defined by IEEE 802.17 to optimize the transmission of data services in a ring structure. It can adapt to multiple physical layers and effectively transmit multiple types of services such as voice, data and video. This paper introduces the technical features of RPR (flexible packet ring), the realization scheme and the application in metro transport network.