| 网络虚拟化环境下基于预测的资源重配置算法 |
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| 引用本文： | 张顺利,邱雪松,潘亚莲,孟洛明.网络虚拟化环境下基于预测的资源重配置算法[J].通信学报,2011,32(7):57-63. |
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| 作者姓名： | 张顺利 邱雪松 潘亚莲 孟洛明 |
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| 作者单位： | 北京邮电大学网络与交换技术国家重点实验室,北京,100876 |
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| 基金项目： | 国家重点基础研究发展计划(“973”计划)基金资助项目(2007CB310703); 国家自然科学基金国家创新研究群体项目(60821001); 国家自然科学基金资助项目(60973108,60902050)~~ |
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| 摘 要： | 解决虚拟网动态加入、离开导致的底层网络资源占用不均衡问题,提出基于预测的资源重配置算法(FRRA)。FRRA用已知信息预测资源重配置时间间隔,代替已有算法中周期性时间间隔。采取两方面措施保证重配置时机全局最优:将资源划分为关键资源和普通资源并使用不同配置算法;根据资源迁移失败概率,推导重配置请求次数极限值。与算法VNA-II、PMPA实验比较表明,FRRA的重配置花费比VNA-II节省69%,比PMPA节省42%;FRRA的虚拟网请求接收率比VNA-II提高29%,比PMPA提高52%。
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| 关 键 词： | 网络虚拟化 资源分配 重配置 预测 |
Forecast-based resource reconfiguration algorithm for network virtualization |
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| ZHANG Shun-li,QIU Xue-song,PAN Ya-lian,MENG Luo-ming.Forecast-based resource reconfiguration algorithm for network virtualization[J].Journal on Communications,2011,32(7):57-63. |
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| Authors: | ZHANG Shun-li QIU Xue-song PAN Ya-lian MENG Luo-ming |
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| Affiliation: | ZHANG Shun-li,QIU Xue-song,PAN Ya-lian,MENG Luo-ming(State Key Laboratory of Networking and Switching Technology,Beijing University of Posts and Telecommunications,Beijing 100876,China) |
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| Abstract: | In order to solve imbalance issues of used resources of substrate network,which are brought by virtual net-work joining and leaving dynamically,forecast-based resource reconfiguration algorithm(FRRA) for network virtualiza-tion environment was proposed.Algorithm FRRA took full advantage of known information to calculate interval of re-configuration and used this interval to replace the periodic time span in previous algorithms.In order to make reconfigu-ration time global optimal,it took two measures:resour... |
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| Keywords: | network virtualization resource allocation reconfiguration forecast |
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