DNS simulation: experimental conditions Experiment 1: no loss, no delay (ideal conditions) Experiment 2: 10% query loss, no delay Experiment 3: no loss, linear delay Root name servers (and those for .com, .uk, .jp) are given delays starting at 10 msec and increasing by 15 msec for each nameserver. The .org nameserver delays overlap with the .com nameservers, going from 100-210 msec in 15 msec increments. SLD nameservers have no delays. Experiment 4: no loss, constant delays Experiment 5: 100% loss, no delays