發(fā)布時(shí)間：2018-04-17 01:25

  本文選題：OpenFlow + 控制器��； 參考：《通信學(xué)報(bào)》2017年09期

【摘要】：無連接的UDP數(shù)據(jù)流產(chǎn)生的大量冗余控制分組會(huì)對(duì)SDN控制器和網(wǎng)絡(luò)產(chǎn)生嚴(yán)重的性能影響。首先,測(cè)試并建模分析了冗余控制分組對(duì)控制器性能的危害,進(jìn)而形成了解決該問題的基本思路。由此提出一種基于預(yù)裝流表并濾除冗余分組(PFFR,preinstalling flow-tablesfiltering redundant-packets)機(jī)制。PFFR通過預(yù)裝轉(zhuǎn)移流表項(xiàng)限制UDP控制分組的初始速率,并通過按路徑安裝流表和冗余分組濾除算法快速消除冗余控制分組。實(shí)現(xiàn)了基于PFFR的原型系統(tǒng)并進(jìn)行了測(cè)試,結(jié)果表明,PFFR方法能夠有效提升控制器的性能。
[Abstract]:A large number of redundant control packets generated by connectionless UDP data streams will have a serious impact on the performance of SDN controllers and networks.Firstly, the harm of redundant control packet to controller performance is tested and modeled, and the basic idea to solve this problem is formed.In this paper, a mechanism based on preloading flow table and filtering redundant packets is proposed. PFFR restricts the initial rate of packets by pre-loading transfer flow table items, and eliminates redundant control packets quickly by installing flow table by path and filtering algorithm by redundant packet filtering.The prototype system based on PFFR is implemented and tested. The results show that the proposed method can effectively improve the performance of the controller.
【作者單位】： 陸軍工程大學(xué)指揮信息系統(tǒng)學(xué)院;南京航空航天大學(xué)計(jì)算機(jī)科學(xué)與技術(shù)學(xué)院;東南大學(xué)計(jì)算機(jī)網(wǎng)絡(luò)和信息集成教育部重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家重點(diǎn)基礎(chǔ)研究發(fā)展計(jì)劃(“973”計(jì)劃)基金資助項(xiàng)目(No.2012CB315806) 國(guó)家自然科學(xué)基金資助項(xiàng)目(No.61379149) 江蘇省科技計(jì)劃基金資助項(xiàng)目(No.BY2013095-1-06) 江蘇省自然科學(xué)基金資助項(xiàng)目(No.BK20140070) 復(fù)雜電子系統(tǒng)仿真重點(diǎn)實(shí)驗(yàn)室基礎(chǔ)研究基金資助項(xiàng)目(No.DXZT-JC-ZZ-2015-018)~~
【分類號(hào)】：TP393.02
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本文編號(hào)：1761461