Users Guide

NOTE: The CONFIGURATION mode lock corresponds to a VTY session, not a user. Therefore, if you congure a lock and then
exit CONFIGURATION mode, and another user enters CONFIGURATION mode, when you attempt to re-enter CONFIGURATION
mode, you are denied access even though you are the one that congured the lock.
NOTE: If your session times out and you return to EXEC mode, the CONFIGURATION mode lock is
uncongured.
Restoring the Factory Default Settings
Restoring the factory-default settings deletes the existing NVRAM settings, startup conguration, and all congured settings such as,
stacking or fanout.
To restore the factory default settings, use the restore factory-defaults stack-unit {stack—unit—number | all}
{clear-all | nvram | bootvar} command in EXEC Privilege mode.
CAUTION: There is no undo for this command.
Important Points to Remember
• When you restore all the units in a stack, these units are placed in standalone mode.
• When you restore a single unit in a stack, only that unit is placed in standalone mode. No other units in the stack are aected.
• When you restore the units in standalone mode, the units remain in standalone mode after the restoration.
• After the restore is complete, the units power cycle immediately.
The following example illustrates the restore factory-defaults command to restore the factory default settings.
Dell#restore factory-defaults stack-unit 1 nvram
***********************************************************************
* Warning - Restoring factory defaults will delete the existing *
* persistent settings (stacking, fanout, etc.) *
* After restoration the unit(s) will be powercycled immediately. *
* Proceed with caution ! *
***********************************************************************
Proceed with factory settings? Confirm [yes/no]:yes
-- Restore status --
Unit Nvram Config
------------------------
1 Success
Power-cycling the unit(s).
....
Restoring Factory Default Environment Variables
The Boot line determines the location of the image that is used to boot up the chassis after restoring factory default settings. Ideally, these
locations contain valid images, using which the chassis boots up.
When you restore factory-default settings, you can either use a ash boot procedure or a network boot procedure to boot the switch.
When you use the ash boot procedure to boot the device, the boot loader checks if the primary or the secondary partition contains a valid
image. If the primary partition contains a valid image, then the primary boot line is set to A: and the secondary and default boot lines are set
to a Null String. If the secondary partition contains a valid image, then the primary boot line is set to B: and the secondary and default boot
lines are set to a Null String. If both the partitions contain invalid images, then primary, secondary, and default boot line values are set to a
Null string.
Management
77