In this section we will perform an SNMP discovery on a switch.

Unlike with file system and network interface discovery, the item does not necessarily has to have an snmp.discovery key - item type of SNMP agent is sufficient.

Discovery of SNMP OIDs is supported since Zabbix serverproxy 2.0.

A built-in macro SNMPINDEX containing index of the discovered OID is applied to discovered entities.

The discovered entities are grouped by SNMPINDEX macro value.

To understand what we mean, let us perform few snmpwalks on our switch.

And set SNMP OID to: discoveryIFDESCR, ifDescr, IFPHYSADDRESS, ifPhysAddress.

Now this rule will discover entities with IFDESCR macros set to WAN, LAN1 and LAN2, IFPHYSADDRESS macros set to 8:0:27:90:7a:75, 8:0:27:90:7a:76, and 8:0:27:2b:af:9e, SNMPINDEX macros set to the discovered OIDs indexes 1, 2 and 3.

If an entity does not have the specified OID, then the corresponding macro will be omitted for this entity.

Then in this case SNMP discovery discoveryIFDESCR, ifDescr, IFALIAS, ifAlias will return the following structure.

The following screenshot illustrates how we can use these macros in item prototypes.

The following screenshot illustrates how we can use these macros in trigger prototypes.

The following screenshot illustrates how we can use these macros in graph prototypes.

When server runs, it will create real items, triggers and graphs based on the values the SNMP discovery rule returns.

Fortigate Snmp Oid