A Switch Migration-Based Decision-Making Scheme for Balancing Load in SDN
A Switch Migration-Based Decision-Making Scheme for Balancing Load in SDN
复制标题
DOI：
10.1109/access.2017.2684188
复制
发表时间：
2017-03
期刊：
影响因子：
3.9
通讯作者：
Chuan'an Wang;Bo Hu;Shanzhi Chen;Desheng Li;B. Liu
中科院分区：
文献类型：
--
作者：
Chuan'an Wang;Bo Hu;Shanzhi Chen;Desheng Li;B. Liu
通过有效的交换机迁移实现弹性扩展和负载均衡是实现软件定义网络（SDN）控制器弹性的关键，但如何提高迁移效率仍然是一个难题。为了解决这一问题，提出了一种基于交换机迁移的决策（SMDM）方案，该方案可以通过交换机迁移触发度量来感知负载不平衡；建立了该方案的迁移效率模型，在迁移成本和负载均衡率之间进行了权衡。设计了一种基于贪心方法的效率感知切换迁移算法，利用迁移效率模型指导可能迁移动作的选择。我们对该方案进行了证明，并使用Mininet仿真器进行了数值评估，以证明该方案的有效性。
Elastic scaling and load balancing with efficient switch migration are critical to enable the elasticity of software-defined networking (SDN) controllers, but learning how to improve migration efficiency remains a difficult problem. To address this issue, a switch migration-based decision-making (SMDM) scheme is put forward that could be made aware of the load imbalance by a switch migration trigger metric; the migration efficiency model for this scheme is built to make a tradeoff between migration costs and the load balance rate. An efficiency-aware switch migration algorithm based on greedy method is designed to utilize the migration efficiency model and thus guide the choice of possible migration actions. We implement a proof of the scheme and present a numerical evaluation using Mininet emulator to demonstrate the effectiveness of our proposal.