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On the other hand one can see from a plot of ping Round Trip Time (RTT) from SLAC to the National Centre for Physics (NCP) in Islamabad (NCP (see below) that during the month of October 2008 the RTT dropped from over 360ms to under 310ms.
The traceroute from SLAC to NCP appears to go through TEIN3.
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The Inter packet delay variability (IPDV) 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 from about 50ms to about 10 mis ms in October and November 2008 and PIEAS (Pakistan Institute of Engineering & Appliesd Applied 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 in the North West Frontier Province, appears to not have improved until March 2010.
The improvement in the PingER IPDV between SLAC and NCP (moved to TEIN3) and SLAC and PERN (not moved to TEIN3) can be seen in the plot below. It is seen that both have improved with time, though the improvemnt improvement for NCP is much more dramatic. Both are now small and comparable and < 2 ms.
The derived throughput has improved by a factor of 5 since the start of 2008, however this does not appear to be directly correlated with the move to TEIN3.
