PING www.yfu.cn (208.98.43.139) 56(84) bytes of data.
64 bytes from mta9.hervorragendleben.com (208.98.43.139): icmp_seq=1 ttl=59 time=158 ms
64 bytes from mta9.hervorragendleben.com (208.98.43.139): icmp_seq=2 ttl=59 time=157 ms
64 bytes from mta9.hervorragendleben.com (208.98.43.139): icmp_seq=3 ttl=59 time=157 ms

--- www.yfu.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 157.099/157.707/158.866/0.881 ms