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国家数字交换系统工程技术研究中心,河南 郑州 450002
[ "胡涛(1993-),男,陕西武功人,国家数字交换系统工程技术研究中心硕士生,主要研究方向为宽带信息网、软件定义网络。" ]
[ "张建辉(1977-),男,河南平顶山人,国家数字交换系统工程技术研究中心副研究员,主要研究方向为宽带信息网、网络安全。" ]
[ "马腾(1980-),男,陕西西安人,国家数字交换系统工程技术研究中心,主要研究方向为网络虚拟化、流量调度。" ]
[ "赵伟(1990-),男,河南郑州人,国家数字交换系统工程技术研究中心硕士生,主要研究方向软件定义网络、拓扑还原。" ]
网络出版日期:2017-11,
纸质出版日期:2017-11-25
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胡涛, 张建辉, 马腾, 等. SDN中基于可靠性评估的多控制器均衡部署策略[J]. 通信学报, 2017,38(11):188-198.
Tao HU, Jian-hui ZHANG, Teng MA, et al. Multi-controller balancing deployment strategy based on reliability evaluation in SDN[J]. Journal on communications, 2017, 38(11): 188-198.
胡涛, 张建辉, 马腾, 等. SDN中基于可靠性评估的多控制器均衡部署策略[J]. 通信学报, 2017,38(11):188-198. DOI: 10.11959/j.issn.1000-436x.2017224.
Tao HU, Jian-hui ZHANG, Teng MA, et al. Multi-controller balancing deployment strategy based on reliability evaluation in SDN[J]. Journal on communications, 2017, 38(11): 188-198. DOI: 10.11959/j.issn.1000-436x.2017224.
针对分布式软件定义网络中控制平面可靠性差和控制器负载不均衡问题,提出一种基于可靠性评估的多控制器均衡部署策略。首先,通过综合权衡节点效能和路径质量评估节点可靠性,并在网络中设定均衡因子,优化控制器部署位置;然后,改进k-center聚类方法,引入冗余函数,根据节点吸引度和控制器负载均衡率完成交换机分配,实现合理的SDN子域规划。仿真结果表明,与现有策略相比,所需控制器数量平均减少22.1%,控制平面弹性明显增强,控制器负载均衡性能得到较大提升。
The control plane has low reliability and controller loads were unbalanced in distributed software defined networks
and a multi-controller balancing deployment strategy based on reliability evaluation was proposed.Firstly
node reliability was evaluated by weighting node efficiency and path quality
optimizing the controller location with balancing factor.Then based on improved k-center clustering
the redundant functions was introduced and the switch allocation was completed according to node attractiveness degree and controller load balancing rate
achieving a reasonable SDN sub-domain planning.The simulations show that compared with the existing strategy the number of required controllers is reduced by an average of 22.1%.The control plane elasticity is enhanced
and the controller load balancing performance has been improved significantly.
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