User's Manual

The message can be a combination of fixed text and replacement values. In many cases,
SNMP traps provide a list of variable binding parameters.
The eSNMP module supports up to nine varbind parameters. The value of those parameters
can be embedded in the resulting message. The following figure shows a sample of such a
definition.
Figure 46: Message with varbind parameters
Supported replacement values are listed in the following figure.
Figure 47: Supported replacement values
When the SNMPv2 syntax is used, the parameters enterprise OID, generic trap, specific trap,
and timestamp are not available. These missing parameters are provided as value 0 so that
the existing implementation can also handle SNMPv2 traps. You must specify 0 in the
corresponding fields to preserve the unique key.
The definitions are related to site and area. This means every instance of eSNMP can have
an appropriate definition. The IP address of the sender is included in the key.
When no GenericTrap field is available, the value 0 is used. The use of the value 0 allows a
flexible filtering of alarms; for example, ignore one or more traps by not specifying the
corresponding alarm and, for example, assigning priorities.
Note that generic traps are reserved values in SNMP protocol, as shown in the following
figure.
Figure 48: Generic traps
Module - eSNMP
46 DECT Messenger Installation and Commissioning — Book 2 March 2012
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