2.5.6 Methods for receiving events from APM in the basic configuration

SSO in the basic configuration can receive events from APM by using one of two event reception methods:

TCP notification method

This is the default reception method, under which SSO receives events directly from APM.
SNMP trap method

APM sends SNMP traps to NNMi, and NNMi converts them into incidents. After that, SSO periodically polls NNMi to receive the incidents.^#

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By default, SSO polls NNMi once every five seconds. You can change the polling interval with the apm-incident-check-interval: key in the ssoapmon action definition file (ssoapmon.def). For details, see 6.3.7 ssoapmon action definition file (ssoapmon.def).

The following figure shows the data flow during event reception from APM in the basic configuration.

Figure 2‒56: Data flow during event reception from APM (basic configuration)