Summary
The VISPI policies for VMware monitoring through the OAVA use a feature known as "source level filters" that is specific to OAVA. This feature can dramatically improve the performance of VISPI policies, but it also introduces new challenges that, if not mastered, can lead to missing performance alerts from the VISPI policies. This support note explains what you need to know to avoid the pitfalls. It is divided in three parts:
1. Source level filters explained
2. Challenges introduced by source level filters
3. Recommendations for a good trade-off between performance and reliability