Startup Configuration File
During the normal boot process, the router uses the startup-config file stored in NVRAM.
You can view this file by typing show start at the enable prompt.
Anytime you want to use the startup configuration in NVRAM, type the reload command or turn the router off and on to force it to reboot.
Be aware, you cannot use the copy start run command to load the startup configuration file.
This is because this command will combine the startup configuration file with the running configuration file.