[ns] Queue Monitor - Enque rate

[Abbas Makki <abbas.makki@kcl.ac.uk>]

Hi all

I need to find the instantaneous peak rate for packet arrivals from a number of 
sources to a drop-tail queue. I would then compare this rate to the link 
capacity (Band-width) from which I would derive a number of variables to use in 
modeling. I can do it in TCLCL, using  Sink monitor, but this is too slow and 
only provide the average over an interval. 

I need to use the queue monitor or the drop-tail que itself to report the 
instantaneous rate for me directly. Prefererably as the recirocal of the 
aggrgate arrival rate without regard to the sources the packets have arrived 
from. Alternativelly pArrivals doivideed by (now) the simulation time.

Can some one help me here with defined steps (or examples). My C++ programming 
ability is very basic I am learning it on the fly as I go along.

Appreciate your kinded help.