64during the process. The safe saving mode is preferred in environments where a stable power supplyis unavailable or remote maintenance is involved.Follow these steps to save the current configuration of the router:To do… Use the command… RemarksSave the current configuration tothe specified file, but theconfiguration file will not be set asthe file for the next startupsave file-url [ all | slot slot-number ]Save the current configuration tothe root directory of the storagemedium of the active or standbyMPU and specify the file as thestartup configuration file that willbe used at the next system startupsave [ safely ]Use either commandAvailable in any viewNOTE:• The configuration file must be with extension .cfg.• During the execution of the save command, the startup configuration file to be used at the next systemstartup may be lost if the router reboots or the power supply fails. In this case, the router will boot withthe factory defaults, and after the router reboots, you need to re-specify a startup configuration file forthe next system startup.Rebooting a module or routerCAUTION:Do not use the reboot command to reboot the standby MPU. To reboot it, use the slave restart command.When upgrading and maintaining the startup configuration file or configuration file for the router, youneed to reboot the router. After you change the operating mode of a MPU or service module, you mustrestart the corresponding module. To reboot a router, use one of the following methods:• Use the reboot command to reboot a router.• Enable the scheduled reboot function at the CLI. You can set a time at which the router canautomatically reboot, or set a delay so that the router can automatically reboot within the delay.• Power on the router after powering it off, which is also called hard reboot or cold start. Powering offa running router causes data loss and hardware damages, and therefore is not recommended.Perform the following operation to reboot the router immediately:To do… Use the command… RemarksReboot the router or the module inthe specified slot immediately reboot [ slot slot-number ] RequiredAvailable in user viewPerform the following operation to enable the scheduled reboot function:
