30.3 How Enterprise Manager Supports SNMP
Enterprise Manager supports SNMP by integrating with third-party management systems, sharing event information through SNMP traps and extending the monitoring scope of Enterprise Manager by monitoring new devices and targets using SNMP.
There are number of ways that Enterprise Manager uses SNMP as illustrated in Figure 30-1:
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Sharing event information with third-party management systems by generating SNMP trap notifications from Enterprise Manager to an SNMP management station. For example, you can use SNMP to notify a third-party application that a selected metric has exceeded its threshold.
This method supports SNMP version 1 (SNMPv1) and SNMP version 3 (SNMPv3).
For more information, see Sending SNMP Trap Notifications and Using Notifications.
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Extending the monitoring scope of Enterprise Manager to new entities by receiving SMNP traps or fetching SNMP data from or to the managed entity. By developing a metadata plug-in to receive SNMP traps, you can enable Enterprise Manager to monitor a product capable of throwing SNMP traps.
This method supports SNMP version 1 (SNMPv1), SNMP version 2 (SNMPv2c), and SNMP version 3 (SNMPv3).
For more information, see Monitoring External Devices Using SNMP and the Oracle Enterprise Manager Cloud Control Extensibility Programmer's Reference. .
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Creating new metrics to query SNMP agents by using SNMP adapters to allow Management Agents to query native SNMP agents on host targets for Management Information Base (MIB) variable information to be used as metric data.
This method supports SNMP version 1 (SNMPv1), SNMP version 2 (SNMPv2c), and SNMP version 3 (SNMPv3).
For more information, see About Metric Extensions and Using Metric Extensions.
Figure 30-1 How Enterprise Manager Supports SNMP
