下一代网络中基于相邻资源的分布式过载控制机制研究

王开西; 杨放春

doi:10.3724/SP.J.1146.2006.01246

下一代网络中基于相邻资源的分布式过载控制机制研究

doi: 10.3724/SP.J.1146.2006.01246

基金项目:

高等学校博士学科点专项科研基金(20020013004)，国家973计划(2003CB314806)，教育部长江学者和创新团队发展计划(通信网的网络理论和技术)(IRT0410) 资助课题

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出版历程
- 收稿日期: 2006-08-22
- 修回日期: 2007-07-06
- 刊出日期: 2008-03-19

Study on the Overload Control Mechanism Based on the Adjacent Resourse in NGN

摘要

摘要: 下一代网络(NGN)不同功能实体由于业务请求形成依赖关系，根据这种依赖关系和NGN相对扁平体系结构的特点，该文给出相邻资源的概念，查找过载点的相邻资源，在相邻资源实施分布式过载控制。分析可以看出，该算法能有效解决SIP协议的分发功能和实施负载平衡带来的过载控制问题，同时尽可能早地拒绝业务请求，提高网络的有效利用率，较好地满足ETSI TISPAN对NGN过载控制定义的需求。
- 下一代网络; 体系结构; 过载控制; 相邻资源
Abstract: The dependence is formed between different function entities due to service request. The concept named adjacent resources is proposed according to the dependence and the NGNs flatter architecture than the traditional telecommunication network. A distributed algorithm for overload control is presented, which is based on the proposed concept. It throttles the request at the logical adjacent resources. The algorithm can effectively handle with the overload control issuing from SIP fork or load balance scenarios. The mechanism can improve the network effective throughput by throttling the service request as soon as possible, which satisfies with the overload control requirements presented in the ETSI TISPAN draft.

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