PING fudan.edu.cn (202.120.224.81) 56(84) bytes of data.
64 bytes from news.fudan.edu.cn (202.120.224.81): icmp_seq=1 ttl=239 time=289 ms
64 bytes from news.fudan.edu.cn (202.120.224.81): icmp_seq=2 ttl=239 time=289 ms
64 bytes from news.fudan.edu.cn (202.120.224.81): icmp_seq=3 ttl=239 time=289 ms

--- fudan.edu.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2867ms
rtt min/avg/max/mdev = 289.077/289.249/289.453/0.640 ms