What kinds of SNMP traps are there?
SNMP trap requests can fall under two categories, polled or autonomous. When an SNMP manager operates using polled SNMP traps, it will periodically request updates from all managed devices. This is accomplished according to a specific time frame, such as every half hour, or every five minutes. When traps are autonomous, they are automatically sent to the manager any time a COS event occurs. Rather than updating the manager on the status of a door every few minutes, autonomous SNMP traps are sent every time a door opens or closes.
