...
The Inter packet delay variation is shown below. It is seen that it has reduced (less jitter probably caused by reduced queuing and contention) considerably for NCP (a factor of 10 in October 2008. For other universities with a complete set of measurements it can also be seen to have reduced at different times, for example UET (the University of Engineering and Technology in Lahore) reduced form about 50ms to about 10 mis in October and November 2008 and PIEAS (Pakistan Institute of Engineering & Applies Appliesd Sciences in Islamabad) reduced from about 60 ms to about 10 ms in May 2009. On the other hand the Ghulam Ishaq Khan Institute (GIKI) in Topi on the North West Frontier Province appears to not have improved until March 2010.
PingER can only measure the monthly loss rate down to 0.007% (since there are only 14400 pings = 10/30 min interval) thus the losses are no longer very instructive when the link performace improves beyond this level. In addition there is no obvious change in performance following Oct 2008.