Juniper EX4300 Series

The factory-default conguraon contains the basic conguraon sengs for the switch. This is the rst
conguraon of the switch and it is loaded when the switch is rst powered on. For the factory-default
conguraon le for your switch, see the hardware documentaon for your switch.
TIP: You can run the EZsetup script to complete the inial conguraon of the switch aer
reverng to the factory-default conguraon. (The EZsetup script is available only on xed
conguraon switches, it is not available on modular switches.) For informaon on compleng
the inial conguraon using either the CLI or the J-Web interface, see Connecng and
Conguring an EX Series Switch (CLI Procedure) or Connecng and Conguring an EX Series
Switch (J-Web Procedure) .
You can revert to the factory-default conguraon by using the Menu buon to the right of the LCD
panel on switches with LCD panel or by using the request system zeroize operaonal command or the load
factory-default conguraon command. (If your switch model does not have an LCD panel, use these
commands.) You can also use the load factory-default command to revert to the factory-default
conguraon le that contains all default sengs except the root password seng, which is retained.
These procedures are described in the following secons:
Reverng to the EX Series Switch Factory-Default Conguraon Using the request
system zeroize Command
The request system zeroize command is a standard Junos OS operaonal mode command that removes all
conguraon informaon and resets all key values. The operaon unlinks all user-created data les,
including customized conguraon and log les, from their directories. The switch then reboots and
reverts to the factory-default conguraon.
To completely erase user-created data so that it is unrecoverable, use the request system zeroize media
command.
CAUTION: Before issuing request system zeroize, use the request system snapshot command
to back up the les currently used to run the switch to a secondary device. Using the
zeroize command will destroy Junos and OAM parons and the switch may not boot.
To recover from a failed soware installaon, see Recovering from a Failed Soware
Installaon.
To revert to the factory-default conguraon by using the request system zeroize command:
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