Automated capturing and characterization of network traffic using feedback is described. A method may include capturing network traffic, compiling network traffic data based on the network traffic, analyzing the network traffic data, and automatically providing instructions based on the analyzing to control the capturing and the compiling. A system on which the method may execute may include one or more chassis or computing devices having one or more network cards. The chassis and/or the computing devices may be connected to one or more networks, and may be connected to one another. A system that implements the method may include collectors, characterization units, and a feedback controller.