目 录第一章 绪论.......................................................................................11.1 课题背景....................................................................................11.2 智能化小区的系统组成和基本功能........................................1第二章 宽带网络...............................................................................32.1 网络分类....................................................................................32.1.1 按网络的地理位置分类......................................................32.1.2 按网络的拓扑结构分类......................................................32.2 计算机网络的分层服务标准体系（OSI）..............................52.3 网络间连接设备.....................................................................92.3.1 中继器（Repeater）..........................................................102.3.2 网桥（Bridge）.................................................................102.3.3 路由器(Router)..................................................................112.3.4 网关（Gateway）..............................................................132.3.5 集线器(HUB).....................................................................142.3.6 交换机(Switch)..................................................................162.4 宽带接入网的比较.................................................................172.4.1 ADSL 接入技术.................................................................182.4.2 Cable Modem 接入技术....................................................182.4.3 LAN 接入技术...................................................................19第三章 网络方案设计...................................................................213.1 宽带接入方案概述..................................................................213.2 网络设计重点考虑的问题......................................................223.2.1 安全问题....................................................
