Network Traffic Analyzers are generally deployed within Enterprises. Although having many of the characteristics of a single, united Enterprise, DIDOs are naturally more of a federation or coalition of the willing spread across the internet. This is why virtualized testing is so important.
Source: The 14 Best Network Traffic Analysis Solutions for 2019 and Beyond, September 17, 2019, https://solutionsreview.com/network-monitoring/the-14-best-network-traffic-analysis-solutions-for-2019-and-beyond/