清除路由配置文件恢复到出厂设置－应用技巧
Router1#erase nvram:（erase startup-config）
Erasing the nvram filesystem will remove all files! Continue? [confirm]
[OK]
Erase of nvram: complete
Router1#reload
System configuration has been modified. Save? [yes/no]: no
Proceed with reload? [confirm]
