This read-write object selects which configuration source the ELS-100 will use on its next reboot, whether leaving things unchanged, loading via TFTP, or reverting to factory defaults, though it's normally set automatically by the device itself, with an NMS able to explicitly force no-change(1) or revert-to-defaults(3). An admin would deliberately set this to revert-to-defaults when a configuration has become corrupted or unmanageable and a clean factory-default restart is needed. For example, after a bad configuration change locks the admin out of the switch's management interface, they might use out-of-band access to set kxadminRebootConfig to revert-to-defaults(3) so the next reboot restores a known-good baseline configuration.