项目一 初识网络 ············································································ 1__eol__任务一 认识网络 ························································································ 4__eol__一、计算机网络概论 ··············································································· 4__eol__二、计算机网络的分类及拓扑结构 ····························································· 6__eol__三、计算机网络体系结构 ········································································ 11__eol__任务二 分析网络协议 ················································································· 26__eol__一、认识地址解析协议ARP ···································································· 26__eol__二、认识控制报文协议ICMP ··································································· 28__eol__三、认识网卡与MAC 地址 ····································································· 29__eol__任务三 网络命令的作用 ·············································································· 33__eol__一、以太网协议 ···················································································· 34__eol__二、IP 协议 ·························································································· 35__eol__项目二 组建交换式网络 ································································· 51__eol__任务一 双绞线的制作与测试 ········································································ 52__eol__一、传输介质 ······················································································· 52__eol__二、制作网线工具 ················································································· 58__eol__任务二 组建对等网 ···················································································· 63__eol__一、局域网技术 ···················································································· 64__eol__二、以太网协议标准 ·············································································· 65__eol__三、CSMA/CD 协议 ··············································································· 65__eol__四、认识二层网络设备 ··········································································· 68__eol__任务三 子网划分与子网编址 ········································································ 71__eol__一、IP 地址的结构和分类 ······································································· 71__eol__二、子网及其子网掩码 ··········································································· 75三、子网规划与编址 ·············································································· 78__eol__任务四 VLAN 的划分 ················································································· 81__eol__一、虚拟局域网 ···················································································· 81__eol__二、VLAN 的划分 ················································································· 83__eol__任务五 跨交换机VLAN 的通信 ····································································· 90__eol__一、VLAN 端口模式 ·············································································· 90__eol__二、VLAN 中继技术 ·············································································· 91__eol__项目三 实现网络互联 ··································································· 103__eol__任务一 路由器基本配置 ············································································ 104__eol__一、路由器的工作原理及常用路由器 ······················································· 104__eol__二、路由及路由选择 ············································································ 105__eol__任务二 静态路由配置 ··············································································· 111__eol__一、静态路由 ····················································································· 112__eol__二、IP 数据报在路由器间的转发过程 ······················································ 113__eol__任务三 RIP 动态路由配置 ·········································································· 119__eol__一、动态路由 ····················································································· 120__eol__二、RIP 协议······················································································ 122__eo