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Traps are unsolicited messages sent by the agent to the management applications to report the conditions of the managed node. SNMP v2c/v3 traps are also called as notifications. SNMP v2 notification is different from the v1 traps with much simplification.
The inform requests can be sent from a manager to another manager. A trap receiver program in the manager station can receive and display inform messages. By default, the inform requests are sent to the port 162 of the manager station.
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