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一種考慮軟件定義網(wǎng)絡(luò)控制節(jié)點(diǎn)故障的控制器部署和交換機(jī)遷移方法

伊鵬,  劉邦舟,  王文博,  張少軍

伊鵬, 劉邦舟, 王文博, 張少軍. 一種考慮軟件定義網(wǎng)絡(luò)控制節(jié)點(diǎn)故障的控制器部署和交換機(jī)遷移方法[J]. 電子與信息學(xué)報(bào), 2017, 39(8): 1972-1978. doi: 10.11999/JEIT161216
引用本文: 伊鵬, 劉邦舟, 王文博, 張少軍. 一種考慮軟件定義網(wǎng)絡(luò)控制節(jié)點(diǎn)故障的控制器部署和交換機(jī)遷移方法[J]. 電子與信息學(xué)報(bào), 2017, 39(8): 1972-1978. doi: 10.11999/JEIT161216
YI Peng, LIU Bangzhou, WANG Wenbo, ZHANG Shaojun. Controller Placement and Switch Immigration Strategy for SDN Controller Failure[J]. Journal of Electronics & Information Technology, 2017, 39(8): 1972-1978. doi: 10.11999/JEIT161216
Citation: YI Peng, LIU Bangzhou, WANG Wenbo, ZHANG Shaojun. Controller Placement and Switch Immigration Strategy for SDN Controller Failure[J]. Journal of Electronics & Information Technology, 2017, 39(8): 1972-1978. doi: 10.11999/JEIT161216

一種考慮軟件定義網(wǎng)絡(luò)控制節(jié)點(diǎn)故障的控制器部署和交換機(jī)遷移方法

doi: 10.11999/JEIT161216
基金項(xiàng)目: 

國家973計(jì)劃項(xiàng)目(2012CB315901, 2013CB329104)，國家自然科學(xué)基金(61572519, 61502530)，國家863計(jì)劃項(xiàng)目(2013AA013505, 2015AA016102)

Controller Placement and Switch Immigration Strategy for SDN Controller Failure

Funds: 

The National 973 Program of China (2012CB315901, 2013CB329104), The National Natural Science Foundation of China (61572519, 61502530), The National 863 Program of China (2013AA013505, 2015AA016102)

  • 摘要: 在軟件定義網(wǎng)絡(luò)(SDN)中，若控制節(jié)點(diǎn)發(fā)生不可恢復(fù)的故障，則相關(guān)交換機(jī)需向其他控制節(jié)點(diǎn)遷移，這將導(dǎo)致網(wǎng)絡(luò)性能下降。針對這一問題，該文提出一種考慮SDN控制節(jié)點(diǎn)故障的控制器部署和交換機(jī)遷移方法。與現(xiàn)有算法僅優(yōu)化交換機(jī)遷移方法不同，該方法同時(shí)考慮控制器部署位置的影響。首先利用標(biāo)號傳播算法構(gòu)造備選子集并劃分雙層子集，然后在每個(gè)子集中選取合適位置部署控制器，最后為子集內(nèi)節(jié)點(diǎn)分配相應(yīng)的master和slave控制器。實(shí)驗(yàn)結(jié)果表明，與現(xiàn)有算法相比，所提方法可有效解決交換機(jī)遷移后控制器超載的問題；通過調(diào)整參數(shù)，權(quán)衡控制器故障前后網(wǎng)絡(luò)性能，可明顯改善交換機(jī)遷移后的控制鏈路平均時(shí)延。
    Abstract: In Software-Defined Networking (SDN), if a controller has unrecoverable failure, the related switches immigrate to other controllers, which degrades network performance. Concerning the above problem, a strategy of controller placement and switch immigration is proposed for controller failure. Different from the present algorithms which only optimize switch immigration method, the proposed strategy also considers the influence of controller placement. Firstly, Label Propagation Algorithm (LPA) is used to construct alternate domains set and partition bilayer domains. Then, one controller is placed in each domain on properly selected situation. Finally, the switches are assigned to corresponding master and slave controllers. The experimental results show that controller overloading problem is well solved compared with the present algorithms. Network performance before and after failure can be traded off by adjusting parameters, which decreases average control path latency after switch immigration.
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出版歷程
  • 收稿日期:  2016-11-10
  • 修回日期:  2017-03-24
  • 刊出日期:  2017-08-19

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