第1页共81页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第1页共81页1.背景..........................................................................................................................................22.系统概述与需求......................................................................................................................32.1系统建设的必要性...................................................................................................32.2系统建设概况...........................................................................................................42.3总体需求..................................................................................................................42.4建网目的..................................................................................................................53.局域网技术现状分析与技术概述...........................................................................................5网络技术选择..................................................................................................................6网络设备的系统结构.......................................................................................................7虚拟网络..........................................................................................................................7路由功能..........................................................................................................................7容错功能..........................................................................................................................7网络管理..........................................................................................................................84.网络方案概述..........................................................................................................................84.1网络设计思想....................................................................................................................84.2网络逻辑结构..................................................................................................................105.网络实现................................................................................................................................115.1系统需求.................................................................................................................115.2网络实现技术.........................................................................................................125.2.1主干网..................................................................................................................125.2.2各子网设计.........................................................................................................135.2.3远程服务............................................................................................................135.2.4与外部网络的连接................................................................................................135.2.5网络物理拓扑结构................................................................................................145.3外连方式..........................................................................................................................155.4网络设备选择..................................
