高技术通讯（英文版）2005，Vol.11Issue(3)：284-288,5.
An integrated self-healing algorithm for resilient packet ring
An integrated self-healing algorithm for resilient packet ring
摘要
Abstract
Resilient Packet Ring (RPR) is a Media Access Control (MAC) layer protocol that operates over a double counter-rotating ring network topology. RPR is designed to enhance Synchronous Digital Hierarchy(SDH) in order to handle data traffic more efficiently. Since Intelligent Protection Switching(IPS) is one of the key technologies in ring networks, RPR provides two intelligent protection algorithms: steering and wrapping. While wrapping in RPR in essence inherits the automatic protection switching(APS) algorithm of SDH, it also wastes the bandwidth on the wrapping ringlets and may result in severe congestion. Whereas steering in RPR provides high bandwidth utilization, its switching speed is low, because it is indeed a high layer's restoration algorithm. In this paper, integrated self-healing(ISH) algorithm as an effective algorithm for RPR is proposed, which synthesizes the merits of the two algorithms by transporting healing signal and computing routing in MAC layer. At last, the performance of ISH algorithm is analyzed and simulated.关键词
resilient packet ring (RPR)/media access control (MAC)/self-healing ring/intelligent protection switching (IPS)Key words
resilient packet ring (RPR)/media access control (MAC)/self-healing ring/intelligent protection switching (IPS)分类
信息技术与安全科学引用本文复制引用
..An integrated self-healing algorithm for resilient packet ring[J].高技术通讯（英文版）,2005,11(3):284-288,5.基金项目
Supported by the High Technology Research and Development Programme of China (No.2002AA121041). （No.2002AA121041）
