如何测试延时，抖动，丢包率

如何测试延时、抖动、丢包率？延时、抖动、丢包率各个数据的含义是什么？ 很简单，在Windows的左下角点击"开始"，选"运行"，键入 cmd 回车，就可以进入DOS窗口，在DOS命令状态下输入 ：

ping 202.105.135.211

就会得到下面的结果：

Pinging 202.105.135.211 with 32 bytes of data:

Reply from 202.105.135.211: bytes=32 time=93ms TTL=42

Reply from 202.105.135.211: bytes=32 time=86ms TTL=42

Reply from 202.105.135.211: bytes=32 time=81ms TTL=42

Reply from 202.105.135.211: bytes=32 time=80ms TTL=42

Ping statistics for 202.105.135.211:

Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

Approximate round trip times in milli-seconds:

Minimum = 80ms, Maximum = 93ms, Average = 85ms

这里面，丢包率0%,抖动是-5ms到+8ms，延时是 85ms（毫秒），测试另外两个IP地址，可以看到：

Pinging 221.221.23.7 with 32 bytes of data:

Reply from 221.221.23.7: bytes=32 time=28ms TTL=48

Reply from 221.221.23.7: bytes=32 time=26ms TTL=48

Reply from 221.221.23.7: bytes=32 time=26ms TTL=48

Reply from 221.221.23.7: bytes=32 time=26ms TTL=48

Reply from 221.221.23.7: bytes=32 time=28ms TTL=48

Reply from 221.221.23.7: bytes=32 time=28ms TTL=48

Reply from 221.221.23.7: bytes=32 time=27ms TTL=48

Reply from 221.221.23.7: bytes=32 time=60ms TTL=48

Reply from 221.221.23.7: bytes=32 time=113ms TTL=48

Reply from 221.221.23.7: bytes=32 time=27ms TTL=48

Reply from 221.221.23.7: bytes=32 time=52ms TTL=48

ping 163.com -t

手机的话，下载speedtest