Juniper® JNCIA Exam Cram Notes : Factory Default State

4. Junos Configuration Basics

4.1 Factory Default state

In juniper devices, there is an option to load our configuration back to the factory default state. The use of 'load factory-default' command in configuration mode hierarchy reverts our device to the factory default state. You can also use the load factory-default command to revert to the factory-default configuration file that contains all default settings except the root password setting, which is retained.


The load factory-default command in Config mode will erase only the existing configuration and load the factory-default configuration. However, the root-authentication password must be set before committing the configuration.

If a configuration fails or denies management access to the services gateway, you can use the RESET CONFIG button to restore the services gateway to the factory default configuration or a rescue configuration. For example, if someone inadvertently commits a configuration that denies management access to a services gateway, you can delete the invalid configuration and replace it with a rescue configuration by pressing the RESET CONFIG button. The button is recessed to prevent it from being pressed accidentally.

The rescue configuration is a previously committed, valid configuration. You must have previously set the rescue configuration through the J-Web interface or the CLI.

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