But we are in the Global configuration mode already so we don’t need to know the password to enter. In this situation we have loaded all the settings of the switch and the passwords to. After the “clean” startup, we enter the global configuration mode and load the configuration from flash back to running-config. That will enable us to start the switch without loading the password set but also without configuration of other stuff. In this case here, we will show how to power the switch on without loading the startup-config file from NVRAM. That is the most precious thing if you have not make some configuration backups that are normally recommended to be done. With this mechanism you are able to reset the password without loosing all the configuration of the switch. Note that you may not be able to actually recover the passwords on the Cisco device, especially if password encryption has been enabled, but you are able to reset them to a new value. The password recovery process requires physical access to the device. In case you have lost or forgotten access passwords, Cisco has a password recovery mechanism that allows administrators to gain access to their Cisco devices. After you set passwords to control access to the Cisco IOS CLI, you need to make sure you remember them.
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