PING kdd.snu.ac.kr (147.46.244.26) 56(84) bytes of data.
64 bytes from kdd.snu.kr (147.46.244.26): icmp_seq=1 ttl=55 time=261 ms
64 bytes from kdd.snu.kr (147.46.244.26): icmp_seq=2 ttl=55 time=255 ms
64 bytes from kdd.snu.kr (147.46.244.26): icmp_seq=3 ttl=55 time=254 ms

--- kdd.snu.ac.kr ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 1999ms
rtt min/avg/max/mdev = 254.382/257.236/261.380/2.999 ms