robertsky$ ping localhost
  PING localhost (127.0.0.1): 56 data bytes
  64 bytes from 127.0.0.1: icmp_seq=0 ttl=64 time=0.051 ms
  64 bytes from 127.0.0.1: icmp_seq=1 ttl=64 time=0.042 ms
  64 bytes from 127.0.0.1: icmp_seq=2 ttl=64 time=0.049 ms