Thank you for your interest in the Meridian data set. This is
the Internet latency data set we used in our SIGCOMM 2005 paper.
We performed node to node latency measurements between 2500x2500 nodes
between May 5-13 2004 using the King measurement technique. We
created the list of sites to measure by walking the DMOZ and
Yahoo directories to yield 593160 website names and randomly picking
entries from this set. The King-style measurements reflect the
latency between the DNS servers serving these names. Each measurement
was repeated 10 times. Measurements were randomized and spaced apart
in time to ensure that they do not experience biases due to queuing
delays at the DNS servers. The latency matrix reflects the median of
the round-trip times. The data file is arranged as an upper
triangular matrix, with the first two values indicating the coordinates
and the last one containing the node to node latency in microseconds.
You might find other Internet latency data sets through our
related work page.
Before downloading the Meridian data, we ask that you register
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