网络功能虚拟化在SD-WAN中的应用与优化  

Application and Optimization of Network Function Virtualization in SD-WAN

作　　者：马玲玲 MA Lingling(School of Information Engineering,Anhui Lvhai Vocational College of Business,Hefei 230601,China)

机构地区：[1]安徽绿海商务职业学院信息工程学院,合肥230601

出　　处：《移动信息》2025年第3期71-73,共3页Mobile Information

基　　金：2022年度安徽省高校自然科学研究重大项目:基于教学场景下的学生行为分析研究(2022AH040354)。

摘　　要：近年来,网络功能虚拟化(NFV)以其网络设备功能解耦和无缝交互等优势,逐步成为现代网络设计的核心技术。其中,SD-WAN(Software Defined Wide Area Network)以其可编程性和灵活性,为NFV应用的场景提供了广阔的空间。文中以SD-WAN实际应用为背景,探讨了NFV在其中的作用和优化策略。首先,建立了一个SD-WAN环境,采用网络功能虚拟化技术,实现了如防火墙,负载均衡等核心网络功能的动态配置和部署。实验结果表明,相对于传统的物理设备,NFV技术在不影响网络性能的同时,降低了设备成本和维护成本。然后,针对SD-WAN的特点,提出了一种资源调度优化算法,其能根据实时网络状况,动态调整虚拟网络功能的资源分配,从而进一步提高其性能。通过实验证明,该优化策略可有效提升整体网络的灵活性、稳定性和效能,这为SD-WAN的实际应用场景提供了有效的优化策略参考,有助于推动NFV在SD-WAN等宽域网络中的进一步应用。In recent years,Network Function Virtualization(NFV)has gradually become a core technology in modern network design due to its advantages of decoupling network device functions and seamless interaction.Among them,SD-WAN(Software Defined Wide Area Network)provides a vast space for NFV application scenarios with its programmability and flexibility.This paper explores the role and optimization strategies of NFV in SD-WAN practical applications.Firstly,an SD-WAN environment was established,utilizing network function virtualization technology to achieve dynamic configuration and deployment of core network functions such as firewalls and load balancing.The experimental results show that compared to traditional physical devices,NFV technology does not significantly affect network performance while reducing device and maintenance costs.Then,based on the characteristics of SD-WAN,a resource scheduling optimization algorithm was proposed,which can dynamically adjust the resource allocation of virtual network functions according to real-time network conditions,thereby further improving its performance.Through experiments,it has been proven that this optimization strategy can effectively improve the flexibility,stability,and performance of the overall network.This provides an effective optimization strategy reference for the practical application scenarios of SD-WAN and helps promote the further application of NFV in wide domain networks such as SD-WAN.

关 键 词：网络功能虚拟化 SD-WAN 动态配置 资源调度优化算法 

分 类 号：TN929.5[电子电信—通信与信息系统]