| 基于复制技术的Parlay CC SCS容错算法 |
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| 引用本文： | 管有庆. 基于复制技术的Parlay CC SCS容错算法[J]. 南京邮电大学学报(自然科学版), 2007, 27(2): 34-39 |
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| 作者姓名： | 管有庆 |
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| 作者单位： | 南京邮电大学,信息网络技术研究所,江苏,南京,210003 |
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| 基金项目： | 国家高技术研究发展计划(863计划) , 江苏省高校自然科学基金 |
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| 摘 要： | 提供呼叫控制业务能力的Parlay CC SCS要支撑业务运营商开发的增值业务,则需要提供电信运营级的可靠性和容错能力.提出了一个基于复制技术的容错处理算法,采用复制技术在服务器集合的各结点上共享Parlay CC SCS呼叫控制事务状态.容错处理算法包括本地读处理算法、远地读处理算法、本地写处理算法、远地写处理算法和复制处理算法等.通过性能分析得出:容错处理算法出现错读概率与远地读到达速率和通信时间量相关.
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| 关 键 词： | Parlay CC SCS 复制 容错 算法 |
| 文章编号： | 1673-5439（2007）02-0034-06 |
| 收稿时间： | 2006-08-23 |
| 修稿时间： | 2006-10-10 |
Parlay CC SCS Fault-Tolerance Algorithm Based on Replication Techniques |
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| GUAN You-qing. Parlay CC SCS Fault-Tolerance Algorithm Based on Replication Techniques[J]. JJournal of Nanjing University of Posts and Telecommunications, 2007, 27(2): 34-39 |
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| Authors: | GUAN You-qing |
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| Affiliation: | Institute of Information Network Technology, Nanjing University of Posts and Telecommunications, Nanjing 210003, China |
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| Abstract: | In order to support value-added services developed by service providers based on Parlay CC SCS that supplies call control service function,carrier grade reliability and fault-tolerance capability must be supplied.This paper presents replication-based fault-tolerance algorithm.CCTS(Call Control Transaction States) are shared in each site of Parlay CC SCS set by using replication techniques.The fault-tolerance algorithm comprises local-read processing algorithm,remote-read processing algorithm,local-write processing algorithm,remote-write processing algorithm,and copy processing algorithm.The result shows that misread probability is very low with the fault-tolerance algorithm. |
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| Keywords: | Parlay CC SCS replication fault-tolerance algorithm |
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