Forecast-based resource reconfiguration algorithm for network virtualization

ZHANG Shun-li; QIU Xue-song; PAN Ya-lian; MENG Luo-ming

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Forecast-based resource reconfiguration algorithm for network virtualization

更新时间：2024-10-14

- Forecast-based resource reconfiguration algorithm for network virtualization
- Vol. 32, Issue 7, Pages: 57-63(2011)
- 作者机构：
  
  北京邮电大学网络与交换技术国家重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP393.01
- Published：2011
- 稿件说明：
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ZHANG Shun-li, QIU Xue-song, PAN Ya-lian, et al. Forecast-based resource reconfiguration algorithm for network virtualization[J]. 2011, 32(7): 57-63.
DOI：

ZHANG Shun-li, QIU Xue-song, PAN Ya-lian, et al. Forecast-based resource reconfiguration algorithm for network virtualization[J]. 2011, 32(7): 57-63. DOI：

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%。

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:resources were divided into critcal resources and general resources

and different algorithms were used to key resources and common resources respectively;according to the probability that re-source migration was failure

the limit number of reconfiguration requests was deduced.FRRA algorithm with VNA-II algorithm and PMPA algorithm in the experiments was compared.The results show that algorithm FRRA reduces recon-figuration cost 69% than that of VNA-II and 42% than that of PMPA.Algorithm FRRA improves VN request reception rate 29% than that of VNA-II and 52% than that of PMPA.

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