arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1909.01544cs.NIcs.LG
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Q-DATA:应用Q学习增强软件定义网络中的流量监控

Q-DATA: Enhanced Traffic Flow Monitoring in Software-Defined Networks applying Q-learning

Technische Universität Chemnitz(开姆尼茨工业大学);Duy Tan University(维新大学)

Trung V. Phan, Syed Tasnimul Islam, Tri Gia Nguyen, Thomas Bauschert

摘要:

软件定义网络(SDN)通过将数据平面与控制平面分离来引入集中式网络控制和管理,这有助于流量监控、安全分析和策略制定。然而,选择适当程度的业务流处理粒度同时主动保护转发设备免于过载是具有挑战性的。在本文中,我们提出了一种新的业务流匹配控制框架称为Q-DATA,应用强化学习,以提高基于SDN的网络中的业务流监控性能,并防止流量转发性能下降。我们首先描述和分析了一个基于SDN的交通流匹配控制系统,该系统采用了基于Q-学习算法的强化学习方法,以最大限度地提高交通流粒度。它还考虑了从基于支持向量机的算法导出的SDN交换机的转发性能状态。接下来,我们概述了Q-DATA框架,该框架结合了来自交通流匹配控制系统的最佳交通流匹配策略,以有效地提供其他机制所需的最详细的交通流信息。我们的新方法实现为REST SDN应用程序,并在SDN环境中进行评估。通过综合实验,结果表明,与常见SDN控制器的默认行为和我们以前的DATA机制相比,新的Q-DATA框架在SDN交换机的流量转发性能降级保护方面有了显着的改善,同时仍能按需提供最详细的流量信息。

英文摘要:

Software-Defined Networking (SDN) introduces a centralized network control and management by separating the data plane from the control plane which facilitates traffic flow monitoring, security analysis and policy formulation. However, it is challenging to choose a proper degree of traffic flow handling granularity while proactively protecting forwarding devices from getting overloaded. In this paper, we propose a novel traffic flow matching control framework called Q-DATA that applies reinforcement learning in order to enhance the traffic flow monitoring performance in SDN based networks and prevent traffic forwarding performance degradation. We first describe and analyse an SDN-based traffic flow matching control system that applies a reinforcement learning approach based on Q-learning algorithm in order to maximize the traffic flow granularity. It also considers the forwarding performance status of the SDN switches derived from a Support Vector Machine based algorithm. Next, we outline the Q-DATA framework that incorporates the optimal traffic flow matching policy derived from the traffic flow matching control system to efficiently provide the most detailed traffic flow information that other mechanisms require. Our novel approach is realized as a REST SDN application and evaluated in an SDN environment. Through comprehensive experiments, the results show that---compared to the default behavior of common SDN controllers and to our previous DATA mechanism---the new Q-DATA framework yields a remarkable improvement in terms of traffic forwarding performance degradation protection of SDN switches while still providing the most detailed traffic flow information on demand.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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