2006 Shenzhen Polytechnic. All rights reserved.
*
路由器基本配置
Basic Configuration of Router
深圳职业技术学院计算机系网络专业
教学目标( Objectives )
1. 路由器功能( Function of Router )
2.路由器组成(Router Components )
3.超级终端会话属性
(HyperTerminal Session Properties)
4. Router配置模式
(Router Configuration Mode )
5.路由器基本配置
(Basic Configuration of Router)
Router功能(Function of Router )
Router是第三层的网络设备(Router is layer 3 device):
1. 路由选择和交换(Routing and Switching)
2. 网络分段(Network Segment)
3. 流量控制(Flow Control)
4. 隔离广播(Isolate Broadcast)
5. 广域网连接(WAN Connection)
路由选择和交换(Routing and Switching)
网络分段(Network Segment)
广域网连接(WAN Connection)
路由器内部组成(Router Internal Components )
RAM/DRAM
1.主要存储路由表,ARP缓存,快速交换表和包队列等
Stores routing tables, ARP cache, fast-switching cache, and packet hold queues;
2.存储正在运行的配置文件
RAM also provides temporary and/or running memory for a router's configuration file while the router is powered;
3.掉电或重启动内容丢失
RAM content is lost during a power down or restart
非易失性RAM (NVRAM )
1.非易失性RAM存储配置文件的备份
Non-volatile RAM stores the router's backup/startup configuration file;
2. 掉电或重启动NVRAM内容不丢失
NVRAM content is retained during power down or restart
Flash
1.Flash是可擦除,可重新编程的ROM,它存储操作系统映像文件和微代码
Erasable, reprogrammable ROM that holds the operating system image and microcode;
2. Flash可以软件升级,不需要更换芯片

下一页