SNMP operations
SNMP provides the following basic operations:
Get—NMS retrieves the SNMP object nodes in an agent MIB.
Set—NMS modifies the value of an object node in an agent MIB.
Notification—SNMP agent sends traps or informs to report events to the NMS. The difference between these two types of notification is that informs require acknowledgment but traps do not. Traps are available in SNMPv1, SNMPv2c, and SNMPv3, but informs are available only in SNMPv2c and SNMPv3.