求翻译：本次的毕业设计主要是针对校园网的运用和相应的知识。首先讲述的是学校的需求分析，然后说校园网的设计原则、组网和技术选择、网络概括和拓扑、地址和命名、网络的特征、网络的结构设计、IP地址方案、VLAN的划分、安全方案、VLAN的配置、和实际运用等知识。最后介绍了VLAN在网络中的应用示例来说明对于VLAN技术的讲解和对其的理解和应用是什么意思？

This design is intended for graduation of campus network and corresponding to the application of knowledge. Needs analysis is presented first school and said that principles of campus network design, network and technology selection, Network General topology, address and name, and network characteristics, structure design, IP addresses, VLAN Division, security scenarios, VLAN configuration, and the practical application of knowledge. Finally introduced the VLAN in the network of examples to illustrate the application of VLAN technology in presentations and on the understanding and application of its