NetFlow Analyzer Enterpise edition supports bandwidth monitoring and traffic analysis in distributed networks. The below schematic diagram depicts a typical setup where NetFlow Analyzer Enterprise Edition is deployed.
Figure A: Architecture Diagram
As can be seen from the architecture diagram above, a typical setup involves a Single Central Server and "n" number of Distributed collectors. Each of the "n" collectors reside near the routers at the remote location. The collectors collect & process the NetFlows from the routers and passes the compressed data to the Central Server through a secure https connection. The Central server persists(stores) the data from the collectors and is responsible for generation of reports.
The bandwidth overhead involved in transmitting the NetFlow data, from collector to the server is in the region of 1 percentage of the total bandwidth.