| Autor: |
ZHANG Shun-li, QIU Xue-song, PAN Ya-lian, MENG Luo-ming |
| Jazyk: |
čínština |
| Rok vydání: |
2011 |
| Předmět: |
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| Zdroj: |
Tongxin xuebao, Vol 32, Pp 57-63 (2011) |
| Druh dokumentu: |
article |
| ISSN: |
1000-436X |
| Popis: |
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. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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