PING www.cesla.uw.edu.pl (193.0.66.154) 56(84) bytes of data.
64 bytes from s2.asc.uw.edu.pl (193.0.66.154): icmp_seq=1 ttl=61 time=19.9 ms
64 bytes from s2.asc.uw.edu.pl (193.0.66.154): icmp_seq=2 ttl=61 time=17.9 ms
64 bytes from s2.asc.uw.edu.pl (193.0.66.154): icmp_seq=3 ttl=61 time=17.9 ms

--- www.cesla.uw.edu.pl ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2090ms
rtt min/avg/max/mdev = 17.924/18.620/19.967/0.952 ms