Looking at the Network Traffic data model (https://docs.splunk.com/Documentation/CIM/4.13.0/User/NetworkTraffic), it only provides: "The fields and tags in the Network Traffic data model describe flows of data across network infrastructure components."
Looking at the Ports data set in the Endpoint data model (https://docs.splunk.com/Documentation/CIM/4.13.0/User/Endpoint), "The fields and tags in the Endpoint data model describe service or process inventory and state, such as Unix daemons, Windows services, running processes on any OS, or similar systems. "
Does that mean network connections from endpoints shouldn't be mapped to "Network Traffic"?
Hi! I'm late to the party with this answer, but yes, you can use Endpoint for that. The Endpoint doc has been updated with further details...
The Endpoint data model is for monitoring endpoint clients including, but not limited to, end-user machines, laptops, and bring your own devices (BYOD). If an event is about an endpoint process, service, file, port, and so on, then it relates to the Endpoint data model. For administrative and policy types of changes to infrastructure security devices, servers, and endpoint detection and response (EDR) systems, see Change.Endpoint in the Change data model.
https://docs.splunk.com/Documentation/CIM/4.18.0/User/Endpoint