The Cisco Policy Control Function (PCF) doesn’t offer capabilities for viewing the messages packet counters at each critical application component. The PCF uses a Key Performance Indicators (KPIs) diagnostics utility to compute and determine the systems behavioral status at a specified time interval. The diagnostics utility also collects the counters from the component and helps to limiting down the issue to a particular area. The utility computes the appropriate KPI counters by querying the prometheus server.

The services to check the counters:

• Rest-endpoint

• Engine

• CDL

This section describes how this feature works.