How about this: use tcpdump to record the packets of that class match up the incoming and outgoing packets take the difference in tcp timestamps > From: Radhakrishnan Vijay <vijayr13@yahoo.com> > To: lartc@mailman.ds9a.nl > Subject: [LARTC] measuring queueing delay using iproute2 > > 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. It won't help to modify iproute2. It's not doing the forwarding. It only tells the kernel what you want the kernel to do.
