Can somebody give me an example?

["HUANG PENG" <huangpeng_buaa@a-1.net.cn>]

Hi, everyone:
    
    I am insterested in using QueueMonitor/Flowmon to monitor different flows, and I have checked the ns doc's and ns man 

paper, but there isn't any example of how to use the it. 
    
    Would you please share with me your experience to use the flow monitor to monitor a designated flow and dump the 

result to a file?
    
    Thank you in advance

    Huangpeng