Результат выполнения команды PING для u4a.ru.:

PING u4a.ru (31.31.205.31) 56(84) bytes of data.
64 bytes from 31.31.205.31 (31.31.205.31): icmp_seq=1 ttl=59 time=0.684 ms
64 bytes from 31.31.205.31 (31.31.205.31): icmp_seq=2 ttl=59 time=0.766 ms
64 bytes from 31.31.205.31 (31.31.205.31): icmp_seq=3 ttl=59 time=0.330 ms
64 bytes from 31.31.205.31 (31.31.205.31): icmp_seq=4 ttl=59 time=0.232 ms
64 bytes from 31.31.205.31 (31.31.205.31): icmp_seq=5 ttl=59 time=0.245 ms

--- u4a.ru ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4002ms
rtt min/avg/max/mdev = 0.232/0.451/0.766/0.228 ms