PING snuecc.snu.ac.kr (147.47.107.71) 56(84) bytes of data.
64 bytes from devmdl.snu.ac.kr (147.47.107.71): icmp_seq=1 ttl=244 time=250 ms
64 bytes from devmdl.snu.ac.kr (147.47.107.71): icmp_seq=2 ttl=244 time=254 ms
64 bytes from devmdl.snu.ac.kr (147.47.107.71): icmp_seq=3 ttl=244 time=251 ms

--- snuecc.snu.ac.kr ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2542ms
rtt min/avg/max/mdev = 250.987/252.351/254.345/1.498 ms