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It is interesting to note that measurements made from pinger.SLAC and pinger-raspberry.SLAC TRIUMF to both TRIUMF and CERN show that the average and median RTTs are about 0.4ms different even though the RTTs for TRIUMF are about 23ms rather than the 151ms whereas for CERN they are ~151ms. Looking at the traceroutes using Matt's traceroute to measure the RTT to each hop indicates that this difference starts at the first hop and persists for later hops. We therefore made ping measurements from each SLAC MA to its own network services via its loopback network interface. Themeasure were made at the sames times to facilitate comparisons.
Powerpoint of figures.
Kolmogorov-Smirnov Test
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