In this paper, we use CCF as an example to identify and analyze potential performance bottlenecks and other pain points that could exist in today’s network data collectors. And we share the experience of building the Next-Generation CCF (ng-CCF) to tackle each pain point and overcome scalability challenges. We hope the experience we share could provide references to others who are looking for such a data collection tool, on their way of building their own, or seeking for ways to improve the performance of their existing data collection tools. And we would like to share the new software, ng-CCF, with the cable industry as a reference design.