Clearing The Alarm History Log; Disabling Snmp Trap Generation And Logging - Brocade Communications Systems MLX Series Hardware Installation Manual

Temperature
If temperature on the management module or interface module increases to the highest threshold,
a major alarm is set. If temperature decreases below the highest threshold, the alarm is cleared
from the current alarm log, and an additional alarm is sent to the alarm history log stating that the
condition has been removed. If the temperature increases into shutdown range, a critical level
alarm is reported and logged in the alarm logs.
Optics
Alarms and warnings are monitored only for optic devices that support optical monitoring. If optical
monitoring is disabled, then no alarms are generated.
If an optic is removed or not present, a major alarm is reported and logged and any existing alarms
are cleared from the current alarm log.
NOTE
Alarms are not generated for optic device insertion.
Switch fabric element
If a switch fabric element cannot be accessed, a major alarm is reported and logged.
Chassis fans, power supplies, and optics
If there is an indication that a single fan has failed, a major alarm is reported and logged on the
tray. If an incompatible fan tray is detected, a major alarm is reported and logged on the tray. When
a fan tray is removed, any existing alarms are cleared and a major alarm is reported and logged on
the tray.
If a power supply is installed but powered down, a minor alarm is reported and logged. If a power
supply is installed incorrectly, a major alarm is reported and logged. If a power supply is not
present, a major alarm is reported and logged.

Clearing the alarm history log

Use the clear alarm command to remove some or all of the current alarms. Once the alarm is
cleared, it is removed from the current alarm database and is no longer available even though the
condition might still exist. The alarm is kept in the history log.
If you clear all alarms, a single entry is added to the history that indicates all alarms have been
cleared.
To clear all alarms from the alarm logs, enter the following command:
Brocade# clear alarm all
For example, if you want to clear all alarms from the alarm logs on a specific optic in slot 9 of the
interface module in slot 1, enter the following command:
Brocade# clear alarm lp 1 optic 9

Disabling SNMP trap generation and logging

With the introduction of the alarm feature, you may want to disable some SNMP trap generation
and logging to save space.
Brocade MLX Series and NetIron XMR Hardware Installation Guide
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Using alarms to collect and monitor device status
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