VoIP Availability Manager performs availability-based root-cause analysis of the managed environment. It also relates transport problems to the VoIP objects, along the affected data path, that are no longer accessible or suffer from lack of response/performance as a result of the transport problems.

When VoIP Availability Manager detects a VoIP failure, it checks for any transport problem received from IP Availability Manager that might be causing the failure. If it does not find such a problem, VoIP Availability Manager focuses its root-cause and impact analysis on just the VoIP domain.

If it does find such a problem, VoIP Availability Manager diagnoses the VoIP failure as an symptom and reports the underlying transport problem and the VoIP symptom (impact) to the Global Manager. The Global Manager responds by adding the VoIP impact to the underlying transport root-cause problem.


An event that is a symptom of a root-cause problem can also be viewed as an impact of the problem.

VoIP and global impact analysis shows the flow of information between the components in a VoIP Availability Manager deployment to achieve VoIP and global impact analysis. Integration with Business Impact Manager is optional.

Figure 1. VoIP and global impact analysis

In VoIP and global impact analysis, after VoIP Availability Manager associates VoIP objects with Business objects by using the BIM model, VoIP Availability Manager exports the objects to the Global Manager for subsequent impact analysis by Business Impact Manager. The VMware Smart Assurance Business Impact Manager User Guide provides complete information about impact calculation and weights.

Items monitored by IP Availability Manager identifies the items monitored by IP Availability Manager and which are subscribed to by VoIP Availability Manager.

Table 1. Items monitored by IP Availability Manager


Notification problem

IP Availability Manager monitors:



Down problem



Down problem




Down problem,