vRealize Network Insight (vRNI) captures all traffic going through the network. It stores the traffic in flow records, and these are made up out of a source, destination, protocol, and port number. The metrics are attached so you can get a nice graph of the traffic behavior.
After creating the flow, vRNI goes on and attaches a lot of context to that flow: Is it coming from a VM? Is there a firewall rule attached? Which vCenter is this flow going through? What kind of SD-WAN Policies are attached? If any of this context changes (i.e., a VM got renamed), … Read more