Junos SNMP configuration follows Juniper's structured configuration model, committed like any other change.
Junos SNMP config sits under the top-level snmp hierarchy and takes effect once committed.
set snmp community linivoRO authorization read-only set snmp community linivoRO clients 10.20.0.50/32 commit
Junos lets you scope SNMP to specific interfaces; on a device with both a management and production plane, restrict it to the management interface rather than leaving it reachable from every VLAN.
Juniper's enterprise MIB reports the standard interface counters plus chassis and routing-engine health on modular platforms.