本文選題：軟件定義網(wǎng)絡(luò) + 多控制器�。� 參考：《計(jì)算機(jī)應(yīng)用》2017年05期

【摘要】：針對(duì)多控制器軟件定義網(wǎng)絡(luò)(SDN)中交換機(jī)遷移策略遷移代價(jià)衡量單一,不能適應(yīng)交換機(jī)流量的變化的情況,提出基于改進(jìn)引力搜索算法的交換機(jī)遷移策略(IGS-SMS)。在決策階段,應(yīng)用基于模糊滿意度的多目標(biāo)決策方法,優(yōu)化目標(biāo)根據(jù)隸屬度大小競(jìng)爭(zhēng)優(yōu)先權(quán);在計(jì)算階段,通過改進(jìn)引力搜索算法優(yōu)化優(yōu)先權(quán)高的目標(biāo)函數(shù)。實(shí)驗(yàn)結(jié)果表明,IGS-SMS在實(shí)現(xiàn)負(fù)載均衡的同時(shí),能保證傳輸時(shí)延與交換機(jī)重分配的指標(biāo);在實(shí)驗(yàn)中,當(dāng)局部負(fù)載較重時(shí),動(dòng)態(tài)遷移算法(DSMA)和基于改進(jìn)型拍賣交換機(jī)遷移機(jī)制(PASMM)不能緩解控制器過載,而IGS-SMS執(zhí)行后無控制器過載,且負(fù)載均衡度小于DSMA和PASMM。
[Abstract]:In view of the fact that the transfer cost of switch migration strategy in SDN defined by multi-controller software is single and unable to adapt to the change of switch traffic, a switch migration strategy based on improved gravity search algorithm is proposed.In the decision-making stage, the multi-objective decision-making method based on fuzzy satisfaction is applied to optimize the objective competitive priority according to the size of membership, and in the calculation stage, the improved gravitational search algorithm is used to optimize the objective function with high priority.The experimental results show that IGS-SMS not only realizes load balancing, but also ensures transmission delay and switch redistribution.The dynamic migration algorithm (DSMA) and the migration mechanism based on the improved auction switch (PASMMM) can not alleviate the overload of the controller, but there is no overload of the controller after the implementation of IGS-SMS, and the load balancing degree is smaller than that of DSMA and PASM.
【作者單位】： 空軍工程大學(xué)防空反導(dǎo)學(xué)院;
【分類號(hào)】：TN915.05;TP18

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