软件学报
軟件學報
연건학보
JOURNAL OF SOFTWARE
2014年
6期
1328-1338
,共11页
江逸茗%兰巨龙%程东年%王志明
江逸茗%蘭巨龍%程東年%王誌明
강일명%란거룡%정동년%왕지명
网络虚拟化%宏电路%服务聚合%映射算法
網絡虛擬化%宏電路%服務聚閤%映射算法
망락허의화%굉전로%복무취합%영사산법
network virtualization%omnibus circuit%service aggregation%mapping algorithm
可重构信息通信基础网络通过构建宏电路实现针对特定服务的传输质量优化。由于该网络架构加入了对网络虚拟化技术的支持,因此在对服务请求进行映射时,若将类型相同的服务映射到同一组底层设备上,则能够有效提升宏电路的优化效果。针对该需求,提出了一种面向服务聚合的虚拟网映射算法,该算法综合考虑了底层设备的剩余资源和服务承载情况,使得服务可被优先映射到承载同类型服务较多的底层设备上。此外,为了对算法的运行时间进行优化,还提出了一种基于跳数约束的候选节点选取策略。实验结果表明,该算法不但在请求接收率和资源占用率等评价指标上有着较好表现,而且还能有效提高映射后服务的聚合程度。
可重構信息通信基礎網絡通過構建宏電路實現針對特定服務的傳輸質量優化。由于該網絡架構加入瞭對網絡虛擬化技術的支持,因此在對服務請求進行映射時,若將類型相同的服務映射到同一組底層設備上,則能夠有效提升宏電路的優化效果。針對該需求,提齣瞭一種麵嚮服務聚閤的虛擬網映射算法,該算法綜閤攷慮瞭底層設備的剩餘資源和服務承載情況,使得服務可被優先映射到承載同類型服務較多的底層設備上。此外,為瞭對算法的運行時間進行優化,還提齣瞭一種基于跳數約束的候選節點選取策略。實驗結果錶明,該算法不但在請求接收率和資源佔用率等評價指標上有著較好錶現,而且還能有效提高映射後服務的聚閤程度。
가중구신식통신기출망락통과구건굉전로실현침대특정복무적전수질량우화。유우해망락가구가입료대망락허의화기술적지지,인차재대복무청구진행영사시,약장류형상동적복무영사도동일조저층설비상,칙능구유효제승굉전로적우화효과。침대해수구,제출료일충면향복무취합적허의망영사산법,해산법종합고필료저층설비적잉여자원화복무승재정황,사득복무가피우선영사도승재동류형복무교다적저층설비상。차외,위료대산법적운행시간진행우화,환제출료일충기우도수약속적후선절점선취책략。실험결과표명,해산법불단재청구접수솔화자원점용솔등평개지표상유착교호표현,이차환능유효제고영사후복무적취합정도。
Reconfigurable Fundamental Information Communication Network achieves optimum transmission quality for special services by establishing Omnibus Circuits. Due to the support of network virtualization in this architecture, optimum efficiency of Omnibus Circuits can be promoted by mapping services of the same type to one group of substrate devices. For this requirement, this paper designs a virtual network mapping algorithm for service aggregation. Because this algorithm has a comprehensive consideration of surplus resources and situation of mapped services, the services tend to be mapped on the substrate devices which host numerous services of the same type. Furthermore, a node selection strategy with hop constraint is proposed for reducing the running time of the algorithm. Simulation experiments show that this algorithm not only has a better performance in the acceptance ratio and the resource occupancy rate, but also substantially increases the degree of service aggregation.