PING tuan.itao999.com (172.67.134.49) 56(84) bytes of data.
64 bytes from 172.67.134.49 (172.67.134.49): icmp_seq=1 ttl=60 time=5.97 ms
64 bytes from 172.67.134.49 (172.67.134.49): icmp_seq=2 ttl=60 time=4.11 ms
64 bytes from 172.67.134.49 (172.67.134.49): icmp_seq=3 ttl=60 time=4.24 ms

--- tuan.itao999.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 4.119/4.779/5.974/0.846 ms