Binary package “flowscan” in ubuntu trusty

flow-based IP traffic analysis and visualization tool

 FlowScan is a freely-available network traffic analysis and
 visualization tool which uses IP flow data to provide a continuous
 near real-time view of a network's IP traffic.
 FlowScan is a tool to monitor and graph flow information from Cisco
 and Riverstone routers in near real-time. You can also use FlowScan
 with flow information generated by programs like fprobe.