PING ustc.org (199.58.177.202) 56(84) bytes of data.
64 bytes from 199.58.177.202 (199.58.177.202): icmp_seq=1 ttl=59 time=103 ms
64 bytes from 199.58.177.202 (199.58.177.202): icmp_seq=2 ttl=59 time=102 ms
64 bytes from 199.58.177.202 (199.58.177.202): icmp_seq=3 ttl=59 time=102 ms

--- ustc.org ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 102.480/102.780/103.158/0.282 ms