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SNMP Protocol Operation
SNMP Versions: SNMPv2c-3
CLI Utility: snmpinform
Protocol List:

INFORMs are simply acknowledged TRAP notifications. When an entity (like snmptrapd) receives an INFORM, it sends back a RESPONSE to indicate it received it. In this way, an INFORM sender may choose to resend an INFORM message if it never received the appropriate RESPONSE message.