>ping www.csdn.net

Pinging www.csdn.net [211.100.21.179] with 32 bytes of data:

Reply from 211.100.21.179: bytes=32 time=96ms TTL=54
Reply from 211.100.21.179: bytes=32 time=94ms TTL=54
Reply from 211.100.21.179: bytes=32 time=95ms TTL=54
Reply from 211.100.21.179: bytes=32 time=101ms TTL=54

Ping statistics for 211.100.21.179:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 94ms, Maximum = 101ms, Average = 96ms

>ping blog.csdn.net

Pinging blog.csdn.net [211.100.21.184] with 32 bytes of data:

Request timed out.
Request timed out.
Request timed out.
Request timed out.

Ping statistics for 211.100.21.184:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),