Cisco Catalyst 9500 User Manual

core files, and credentials such as Federal Information Processing Standard-related (FIPS-related) keys. The
erasure is consistent with the clear method, as described in NIST SP 800-88 Rev. 1.
The factory reset process is used in the following scenarios:
• Return Material Authorization (RMA) for a device: If you have to return a device to Cisco for RMA,
remove all the customer-specific data before obtaining an RMA certificate for the device.
• Recovering a compromised device: If the key material or credentials that are stored on a device are
compromised, reset the device to the factory configuration, and then reconfigure the device.
During a factory reset, the device reloads and enters ROMMON mode. After the factory reset, the device
removes all its environment variables, including the MAC_ADDRESS and the SERIAL_NUMBERvariables,
which are required to locate and load the software. Perform a reset in ROMmon mode to automatically set
the environment variables. The BAUD rate environment variable returns to its default value after a factory
reset. Make sure that the BAUD rate and the console speed are the same at all times. Otherwise, the console
becomes unresponsive.
After the system reset in ROMmon mode is complete, add the Cisco IOS image either through an USB or
TFTP.
The following table provides details about the data that is erased and retained during the factory reset process:
Table 16: Data Erased and Retained During Factory Reset
Data RetainedData Erased
Data from remote field-replaceable units (FRUs)All Cisco IOS images, including the current boot
image
Value of the configuration register.Crash information and logs
—User data, startup and running configuration, and
contents of removable storage devices, such as Serial
Advanced Technology Attachment (SATA), Solid
State Drive (SSD), or USB
Credentials such as Secure Unique Device Identifier
(SUDI) certificates, and public key infrastructure
(PKI) keys.
Credentials such as FIPS-related keys
LicensesOnboard Failure Logging (OBFL) logs
—ROMmon variables added by a user.
How to Perform a Factory Reset
To perform a factory reset, complete this procedure:
Procedure
PurposeCommand or Action
Enables privileged EXEC mode.enable
Step 1
System Management Configuration Guide, Cisco IOS XE Amsterdam 17.2.x (Catalyst 9500 Switches)
292
Performing Factory Reset
How to Perform a Factory Reset

Cisco Catalyst 9500 Specifications

General

Brand	Cisco
Model	Catalyst 9500
Category	Switch
Language	English