Over the years, Cisco has developed various ACI tools (now for DCNM and NX-OS and eventually public cloud visibility) known as the day 2 operations suite. The tools are Network Assurance Engine (NAE) and NEXUS Insights (NI is now the combination of Network Insights Resources (NIR) and Network insights Advisor (NIA)). Cisco has embarked on combining NAE and NI into a single pane of glass view and providing sharable data lakes for all apps, allowing for correlating application performance and fabric events.