数据中心的网络虚拟化技术研究

文中以数据中心的网络虚拟化技术为研究对象，探讨了在现代数据中心环境下如何优化网络资源利用、提高网络性能和灵活性的问题。首先，引入了软件定义网络（Software Defined Networking，SDN）的基本概念与架构，分析了SDN与网络虚拟化的关系。在此基础上，设计了一个综合性的网络虚拟化总体架构，以支持多租户的虚拟网络隔离和灵活配置。随后，详细介绍了虚拟局域网（Virtual Local Area Network，VLAN）技术在该总体架构中的实现方法。为验证VLAN技术在数据中心网络中的效果，文中设计了实验环境并进行了实验评估。结果表明，VLAN技术有效提高了数据中心网络的资源利用率，提升了网络的灵活性和性能，验证了其在数据中心网络中的实用性和优越性。

Research on Network Virtualization Technology in Data Centers

This paper takes data center networking virtualization technology as the research object, and discusses how to optimize network resource utilization, improve network performance and flexibility in modern data center environment. First, the basic concept and architecture of Software Defined Networking (SDN) are introduced, and the relationship between SDN and network virtualization is analyzed. On this basis, a comprehensive network virtualization overall architecture is designed to support multi-tenant virtual network isolation and flexible configuration. Then, the implementation method of Virtual Local Area Network (VLAN) technology in this overall architecture is introduced in detail. To verify the effect of VLAN technology in data center networking, the paper designs an experimental environment and conducts an experimental evaluation. The results show that VLAN technology effectively improves the resource utilization of data center networking, improves the flexibility and performance of the network, and verifies its practicality and superiority in data center networking.