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弹性分组环(RPR)是未来城域网的重要发展方向,是业界第一次基于分组业务优化城域网体系结构。本文对RPR的关键技术之一--保护倒换机制进行了分析和研究,并提出了一种基于业务的保护方式。其主要思想在于根据不同的业务特点采用不同的保护方式,从而更好地满足不同业务的要求。
Flexible packet ring (RPR) is an important development direction of the future MAN, is the industry for the first time based on packet service optimization metropolitan area network architecture. In this paper, one of the key technologies of RPR - protection switching mechanism is analyzed and studied, and a protection method based on business is proposed. The main idea is to adopt different protection methods according to different business characteristics so as to better meet the requirements of different businesses.