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The script uses asynchronous I/O to talk simultaneously with up to 5 landmarks.
For the Planetlab landmarks an interpretive script is supplied with the target embedded. For the SLAC ping servers and the Looking glass sites the landmark is accessed by a URL provided in the sites.txt file (see below) in the PingSites token (e.g. http://www.slac.stanford.edu/cgi-wrap/nph-traceroute.pl?choice=yes&function=trace&target=$target
).
Files
The list of SLAC and Looking Glass landmarks is read from /afs/slac/www/comp/net/wan-mon/tulip>ne sites.txt. the format is space separated tokens:
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