In reply to William Kimandu.

William

Nice to hear from you. Hope all is well.

Cisco NAE and Network Insights are complementary products and are operational tools for day to day operations.

Cisco Network Assurance continuously verifies, that the network infrastructure is operating as per policy intent and it leverages the power of mathematical models to reason on behalf of the operator at policy, configuration and dynamic state level. It is able to transform operations from reactive to proactive and does so without using any packet data. It can predict impact of changes, verify network wide behavior, assure network security and compliance and assist with optimizing resources. NAE Smart Events offer root cause and remediation steps.

Network Insights Resources is aligned towards detection and recovery from operational issues. NIR leverages packet data, flow telemetry, faults, events to perform control & dataplane troubleshooting, monitoring, and capacity planning. Examples – Exact point and reason of packet drop in ACI fabric with detailed flow telemetry statistics for the particular flow. Anomaly detection and suggested remediation for symptoms such as slowness of web application. Corelation and suggested remediation of faults or operational events such as NTP server becomes unreachable.

Please note – examples above are for ease of understanding. Both deliver exhaustive value than what is described above. You are encouraged to try both :).