I am using the tc functionality provided by iproute2 to setup classes and queueing disciplines. I have a requirement to determine the queueing delay of each packet belonging to a particular class so that i can measure the average queueing delay over a time interval for a particular traffic class. I would be grateful if somebody could give me pointers on how i possibly can achieve this. I suspect that i would have to modify the source code of iproute2 , but am not too sure on what segment of the code i should be modifying. __________________________________________________ Do You Yahoo!? Yahoo! Greetings - Send FREE e-cards for every occasion! http://greetings.yahoo.com