Enterprise networks are becoming increasingly complex, posing challenges for traditional WANs in terms of scalability, management, and operational costs. Software Defined Networking (SDN) and its application in Wide Area Networks (SD-WAN) offer solutions by decoupling the control plane from the data plane, providing centralized management, enhanced flexibility, and automated provisioning. This research investigates the challenging application of SD-WAN to optimize traditional multisite enterprise networks. Experimental scenarios are designed in which SD-WAN is implemented on a traditional multi-site network topology with complex architecture, then followed by comprehensive evaluations of its performance across various critical aspects, including hardware status, transmission performance, and security.

翻译：企业网络正变得日益复杂，这对传统广域网在可扩展性、管理和运营成本方面提出了挑战。软件定义网络（SDN）及其在广域网中的应用（SD-WAN）通过将控制平面与数据平面解耦，提供了集中化管理、增强的灵活性和自动化配置等解决方案。本研究探讨了应用SD-WAN以优化传统多站点企业网络这一具有挑战性的课题。研究设计了实验场景，在具有复杂架构的传统多站点网络拓扑上部署SD-WAN，随后对其在硬件状态、传输性能和安全性等多个关键方面的性能进行了全面评估。