alarmActiveState

This trap is sent out when an alarm is raised. It contains the model number of the alarm as well as a resource ID which identifies specifically what the alarm refers to (for instance for a link down alarm you would indicate which link it is)

alarmClearState

This is sent out when an alarm is cleared. It contains the same information as the other trap.

authenticationFailure

Someone tried to access data but was denied (used to alert to possible security intrusions I believe)

coldStart

Indicates agent re-initializing. Configuration data may have been altered.

dsx1LineStatusChange 

dsx1 LineStatus changed 

dsx3LineStatusChange

dsx3 LineStatus changed