摘 要
随着网络攻击日益复杂化和多样化，传统局域网安全策略部署面临响应速度慢、灵活性差等问题，难以适应快速变化的网络安全环境。为此，本研究提出基于软件定义网络（SDN）架构的局域网安全策略自动化部署方案，旨在通过集中控制与编程能力提升网络安全防护水平。研究采用SDN控制器作为核心组件，结合机器学习算法对网络流量进行实时监测与分析，实现对潜在威胁的智能识别。同时，设计了动态调整机制，根据监测结果自动更新安全策略，确保网络始终处于最优防护状态。实验结果显示，在多种模拟攻击场景下，该方案能够显著提高入侵检测率，降低误报率，并将安全策略部署时间缩短至秒级。与传统方法相比，其响应速度提升了约80%，有效解决了现有系统中存在的延迟问题。此外，该方案还支持多租户环境下的个性化安全配置，增强了系统的适用性。
关键词：软件定义网络 局域网安全 自动化部署
Abstract
With the increasingly complex and diversified network attacks, the deployment of traditional LAN security strategies is faced with problems such as slow response speed and poor flexibility, which is difficult to adapt to the rapidly changing network security environment. To this end, this study proposes an automatic deployment scheme of LAN security strategy based on software-defined network (SDN) architecture, aiming to improve the level of network security protection through centralized control and programming capabilities. SDN controller uses SDN controller as the core component and machine learning algorithm to monitor and analyze network traffic in real time to realize the intelligent identification of potential threats. At the same time, a dynamic adjustment mechanism is designed to automatically update the security policies according to the monitoring results to ensure that the network is always in the optimal protection state. The experimental results show that this scheme can significantly improve the intrusion detection rate, reduce the false alarm rate, and reduce the deployment time of the security strategy to the second level. Compared with the traditional method, its response speed is increased by about 80%, effectively solving the latency problem in the existing system. In addition, the scheme also supports personalized security configuration in a multi-tenant environment, enhancing the applicability of the system.
Keyword:Software Defined Network Local Area Network Security Automation Deployment
目 录
1绪论 1
1.1研究背景与意义 1
1.2国内外研究现状 1
1.3研究方法概述 1
2SDN架构下的安全需求分析 2
2.1局域网安全威胁模型 2
2.3安全策略自动化的需求 3
3自动化部署的关键技术 4
3.2流表管理机制设计 4
3.3动态安全策略生成算法 4
4策略部署与优化方案 5
4.1部署流程设计与实现 5
4.2策略冲突检测与解决 6
4.3性能评估与优化建议 6
结论 7
参考文献 8
致谢 9
随着网络攻击日益复杂化和多样化，传统局域网安全策略部署面临响应速度慢、灵活性差等问题，难以适应快速变化的网络安全环境。为此，本研究提出基于软件定义网络（SDN）架构的局域网安全策略自动化部署方案，旨在通过集中控制与编程能力提升网络安全防护水平。研究采用SDN控制器作为核心组件，结合机器学习算法对网络流量进行实时监测与分析，实现对潜在威胁的智能识别。同时，设计了动态调整机制，根据监测结果自动更新安全策略，确保网络始终处于最优防护状态。实验结果显示，在多种模拟攻击场景下，该方案能够显著提高入侵检测率，降低误报率，并将安全策略部署时间缩短至秒级。与传统方法相比，其响应速度提升了约80%，有效解决了现有系统中存在的延迟问题。此外，该方案还支持多租户环境下的个性化安全配置，增强了系统的适用性。
关键词：软件定义网络 局域网安全 自动化部署
Abstract
With the increasingly complex and diversified network attacks, the deployment of traditional LAN security strategies is faced with problems such as slow response speed and poor flexibility, which is difficult to adapt to the rapidly changing network security environment. To this end, this study proposes an automatic deployment scheme of LAN security strategy based on software-defined network (SDN) architecture, aiming to improve the level of network security protection through centralized control and programming capabilities. SDN controller uses SDN controller as the core component and machine learning algorithm to monitor and analyze network traffic in real time to realize the intelligent identification of potential threats. At the same time, a dynamic adjustment mechanism is designed to automatically update the security policies according to the monitoring results to ensure that the network is always in the optimal protection state. The experimental results show that this scheme can significantly improve the intrusion detection rate, reduce the false alarm rate, and reduce the deployment time of the security strategy to the second level. Compared with the traditional method, its response speed is increased by about 80%, effectively solving the latency problem in the existing system. In addition, the scheme also supports personalized security configuration in a multi-tenant environment, enhancing the applicability of the system.
Keyword:Software Defined Network Local Area Network Security Automation Deployment
目 录
1绪论 1
1.1研究背景与意义 1
1.2国内外研究现状 1
1.3研究方法概述 1
2SDN架构下的安全需求分析 2
2.1局域网安全威胁模型 2
2.3安全策略自动化的需求 3
3自动化部署的关键技术 4
3.2流表管理机制设计 4
3.3动态安全策略生成算法 4
4策略部署与优化方案 5
4.1部署流程设计与实现 5
4.2策略冲突检测与解决 6
4.3性能评估与优化建议 6
结论 7
参考文献 8
致谢 9
