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Configuring port threshold alarms
IMPORTANT:
Port threshold alarms can be managed only with Element Manager, which requires the 
Element Manager PFE key, and the CLI. See 
more information about installing a PFE key. To obtain the McDATA 4Gb SAN Switch serial number and 
PFE key, follow the step-by-step instructions on the firmware feature entitlement request certificate for the PFE 
key. You can obtain a PFE key from the web at: 
You can configure the switch to generate alarms for selected events. Configuring an alarm involves 
choosing an event type, rising and falling triggers, a sample window, and finally enabling or disabling the 
alarm. To configure port threshold alarms:
1.
Open the faceplate display.
2.
Select 
Switch > Port Threshold Alarm ConfigurationThe Port Threshold Alarm Configuration dialog 
shown in 
 prompts you to enable or disable all alarms, select an event, set triggers, set a 
sample window and enable or disable an individual alarm.
Figure 28
Port Threshold Alarm Configuration dialog
3.
Select the 
Enable All Port Threshold Alarms option to enable monitoring for all the individual alarm 
types that are enabled. The 
Enable All Port Threshold Alarms option is the master control for the 
individual alarms. For example, the switch will monitor Cyclic Redundancy Check (CRC) errors only if 
both the 
CRC Error Monitoring option and the Enable All Port Threshold Alarms option are selected.
4.
Select an event type from the 
Port Threshold Alarm drop-down list. Choose from the following options:
• CRC error monitoring
• Decode error monitoring
• ISL monitoring
• Login monitoring
• Logout monitoring
• Loss of signal monitoring
5.
Select the 
Enable option to make the alarm eligible for use. 
6.
Enter a value for the rising trigger. A rising trigger alarm is generated when the event count per interval 
exceeds the rising trigger. The switch will not generate another rising trigger alarm for that event until 
the count descends below the falling trigger and rises again above the rising trigger. Consider the 
example in 
7.
Enter a value for the falling trigger. A falling trigger alarm is generated when the event count per 
interval descends below the falling trigger.