本文選題：軟件定義網(wǎng)絡(luò) + 網(wǎng)絡(luò)虛擬化　； 參考：《計(jì)算機(jī)應(yīng)用研究》2017年07期

【摘要】：為應(yīng)對(duì)網(wǎng)絡(luò)故障,提升網(wǎng)絡(luò)的可靠性,針對(duì)SDN環(huán)境設(shè)計(jì)了節(jié)點(diǎn)的可靠度指標(biāo),提出了基于節(jié)點(diǎn)可靠度的虛擬SDN映射算法。在初始可靠映射階段,該算法根據(jù)節(jié)點(diǎn)可靠度指標(biāo)進(jìn)行v SDN映射,部署控制器時(shí)兼顧了控制器與交換機(jī)的時(shí)延,同時(shí)考慮控制網(wǎng)絡(luò)的重要性,為控制網(wǎng)絡(luò)構(gòu)建相應(yīng)的備份資源;在故障恢復(fù)階段,針對(duì)物理SDN單節(jié)點(diǎn)或單鏈路故障,算法使用遷移方法應(yīng)對(duì)控制節(jié)點(diǎn)失效的情況,使用重映射方法應(yīng)對(duì)其他故障。仿真結(jié)果表明,算法在請(qǐng)求接受率、故障恢復(fù)率、有效承載率和平均控制時(shí)延等指標(biāo)上取得了較好的結(jié)果。
[Abstract]:In order to deal with network failures and improve network reliability, a virtual SDN mapping algorithm based on node reliability is proposed for designing the reliability index of nodes in SDN environment. In the initial reliability mapping stage, the algorithm maps the v SDN according to the reliability index of the node. When deploying the controller, the delay between the controller and the switch is taken into account. At the same time, the importance of the control network is considered, and the corresponding backup resources are constructed for the control network. In the stage of fault recovery, for the single node or single link fault of physical SDN, the migration method is used to deal with the failure of the control node, and the remapping method is used to deal with other faults. Simulation results show that the algorithm achieves good results in terms of request acceptance rate, fault recovery rate, effective load carrying rate and average control delay.
【作者單位】： 空軍工程大學(xué)信息與導(dǎo)航學(xué)院;
【基金】：國(guó)家自然科學(xué)基金資助項(xiàng)目(61401499) 陜西省自然科學(xué)基金資助項(xiàng)目(2015JM6340) 陜西省工業(yè)科技攻關(guān)項(xiàng)目(2016GY-087)
【分類號(hào)】：TP393.0

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本文編號(hào)：2013539