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计算机工程 ›› 2007, Vol. 33 ›› Issue (03): 108-110. doi: 10.3969/j.issn.1000-3428.2007.03.039

• 网络与通信 • 上一篇    下一篇

一种新的SDH传送网的业务可用性分析方法

邓 歆,孟洛明   

  1. (北京邮电大学网络与交换技术国家重点实验室,北京100876)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-02-05 发布日期:2007-02-05

New Approach for Business Availability of SDH Transport Network

DENG Xin, MENG Luoming   

  1. (State Key Laboratory of Network and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876)
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-02-05 Published:2007-02-05

摘要: 如何评估和量化分析网络可用性已经成为一个重要的研究课题。该文提出了一个评价光传送系统业务可用性模型,在该模型中,端到端的业务可用性是基于链路的串联和并联结构来分析的,研究了具有自愈环保护机制的SDH业务可用性。传输线路和设备的故障率是基于一个较长的时间段内的计算值。该文验证了基于业务的光传送网的可用性分析的可操作性。

关键词: 可用性, 平均故障间隔时间, 平均故障修复时间

Abstract: It becomes a critical issue to access and quantify the availability of most networks. This paper presents a novel framework to access the availability of end-to-end traffic in the optical transport network. In this framework, the end-to-end traffic is analyzed by serial structure and parallel structure. It just focuses the ring network availability based on SDH technology that has self-healing mechanism. Calculation of availability is made using the failure of optical cables and equipments that are obtained during years-long observation. At last, the applicability of this framework is also examined in actual networks.

Key words: Availability, Mean time between failure(MTBF), Mean time to repair(MTTR)