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This is a study of the differences (if any) of the measurements from pinger.slac.stanford.edu (a single (bare hardware non-virtual) Linux host (Dell PowerEdge 2650) running the PingER Measurement Agent (MA) and pingervm (AKA dhcp-nebula-124-66.slac.stanford.edu a Nebula KVM Virtual Machine with floating addresses) MA measuring the ping Round Trip Times (RTTs) to hosts worldwide and between pinger and pingervm. Hencefiorth we refer to ping requests from pinger to pingervm as pinger to pingervm or pinger>pingervm and ping requests from pingervm to pinger as pinger to pingervm or pingervm>pinger. Both pinger and pingervm are located on the second floor of Building 50 (the computer center) at SLAC. The traceroutes between the two machines are seen here.
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