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contains a valid image, then the primary boot line value is set to the partition that is configured to be used to boot the device in
a network failure scenario. The secondary and default boot line values are set to a Null string.
Important Points to Remember
● The Chassis remains in boot prompt if none of the partitions contain valid images.
● To enable TFTP boot after restoring factory default settings, you must stop the boot process in BLI.
Viewing the Reason for Last System Reboot
You can view the reason for the last system reboot. To view the reason for the last system reboot, follow this procedure:
● Use the following command to view the reason for the last system reboot:
EXEC or EXEC Privilege mode
show reset-reason [stack-unit {unit-number | all}]
Enter the stack-unit keyword and the stack unit number to view the reason for the last system reboot for that stack
unit.
Enter the stack-unit keyword and the keyword all to view the reason for the last system reboot of all stack units in the
stack.
DellEMC#show reset-reason
Cause : Reset by User through CLI command
Reset Time: 11/05/2017-08:36
DellEMC# show reset-reason stack-unit 1
Cause : Reset by User through CLI command
Reset Time: 11/05/2017-08:36
Disabling Syslog Messages for SNMP Authentication
Failure Events
The system generates syslog messages for SNMP authentication events. Over time, these messages can fill up the syslog file on
the system, making analyzing system logs a cumbersome task. You can disable syslog messages for SNMP authentication failure
events on the system. To disable these messages, follow this procedure:
● Disable syslog messages for SNMP authentication failure events.
CONFIGURATION mode
logging disable-syslog snmp auth-failure
NOTE: This command does not disable SNMP traps for SNMP authentication failure events.
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