华为设备恢复出厂设置
操作命令如下：
<sw1> reset saved-configuration //输入命令
Warning: The action will delete the saved configuration in the device. //执行命令将删除设备中保存的配置（其实就是我们的要废了，潜台词用原厂的）
The configuration will be erased to reconfigure. Continue? [Y/N]:Y //配置将被清除，提示是否恢复选Y
<sw1> reboot
Info: The system is now comparing the configuration, please wait.
Warning: All the configuration will be saved to the configuration file for the n
ext startup:, Continue?[Y/N]: N //提示是否保存选N
Info: If want to reboot with saving diagnostic information, input 'N' and then e
xecute 'reboot save diagnostic-information'.
System will reboot! Continue?[Y/N]: Y //提示是否重启选Y
.. ..
<Huawei> //变成这种提示符，表示已经恢复出厂设置