Alarms

In the phy-interface configuration, you can establish up to three alarms per media interface—one each for minor, major, and critical alarm severities. These alarms do not have an impact on your system’s health score. You set the threshold for an alarm as a percentage used for receiving and transmitting data.

For example, you might configure the following alarms:

• Minor, set to 50%
• Major, set to 70%
• Critical, Set to 90%

When the utilization percentage hits 50%, the system generates a minor alarm. At 70%, the system clears the minor alarm and issues a major one. And at 90%, the system clears the major alarm and issues a critical one. At that point, if you have overload protection enabled, the system will drop call initiations but allow in-progress calls to complete normally.

To prevent alarm thrashing, utilization must remain under the current alarm threshold for 10 seconds before the system clears the alarm and rechecks the state.