Does Junos OS support SNMP informs?
Yes, Junos OS supports SNMP informs as part of its support for SNMPv3. SNMP informs are confirmed notifications sent from SNMP agents to SNMP managers when significant events occur on a network device. When an SNMP manager receives an inform, it sends a response to the sender to verify receipt of the inform.
For more information, click Understanding SNMP implementation in Junos OS.