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Figure 11: Using ping 

PING fs11.nas.nasa.gov (10.132.142.11): 56 data bytes
64 bytes from 10.132.142.11: icmp_seq=0 ttl=254 time=24 ms
64 bytes from 10.132.142.11: icmp_seq=2 ttl=254 time=388 ms
64 bytes from 10.132.142.11: icmp_seq=3 ttl=254 time=65 ms
64 bytes from 10.132.142.11: icmp_seq=4 ttl=254 time=113 ms