Relio 4.2.x User Manual – 07/2015
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3.23.1. Supported SNMP versions
The Relio implements an SNMP agent that supports SNMPv1 and SNMPv2c versions. GET and SET commands are
supported, as are GETBULK in SNMPv2c. Notifications can be transmitted in TRAP V1 or V2c form or INFORM V2c
type.
3.23.2. Notification modes
To ensure that the traps reach their destination via the protocol, the Relio offers two methods based on the
principle of notification retransmission until acknowledgement is received by the addressee manager.
Acknowledgement is automatic, via INFORM type notifications. These notifications are only available with SNMP
V2c. The protocol ensures that the manager immediately returns the received notification to the transmitting
agent. This mechanism is very simple and reliable, requiring no specific configuration from the addressee
manager.
Manual acknowledgement: a specific OID (“alarmPendingAlarmsalarmAck”) is extracted from variables
transmitted inside the trap, on which the manager will have to carry out a SET command. This method is
difficult to set up, but is the only possible method for managers limited to SNMP version 1.
Acknowledgement mode selection (Trap V1, Trap V2c or Inform) is set for all alarms. See section 4.8,
“Notifications” for additional configuration specific to notification type.
With “SNMPv2c traps” notifications, it not possible to acknowledge traps.
In the same way, traps which do not require acknowledgment cannot be sent with the “Inform SNMPv2c”
format, even when this format is selected. This is the case with the ‘test’ trap as well as with equipment
information traps such as the ‘Equipment On’ trap.
3.23.3. MIB structure
Most MIB elements which can be viewed and modified are presented on the embedded web site.
The MIB also has diverse unique and specific tables.
ScriptEasy alarm table
Table of notifications awaiting acknowledgement
Input-output table
Remember to click the ‘Update’ button in each section to lock in any changes.
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