5.利用ping命令（-l參數）測試大型數據包傳輸情況

-l參數用于定義所發送緩沖區的數據包的大小，在默認的情況下，Windows的ping命令發送的數據包大小為32B，也可以自定義，但最大只能發送65500B。

例如：

            C:\WINDOWS>ping -l 32768 -n 10 192.168.1.188
            ping ing 192.168.1.188 with 32768 bytes of data:
            Request timed out.
            Reply from 192.168.1.188: bytes=32768 time=12ms TTL=64
            Reply from 192.168.1.188: bytes=32768 time=12ms TTL=64
            Reply from 192.168.1.188: bytes=32768 time=12ms TTL=64
            Reply from 192.168.1.188: bytes=32768 time=9ms TTL=64
            Reply from 192.168.1.188: bytes=32768 time=9ms TTL=64
            Reply from 192.168.1.188: bytes=32768 time=9ms TTL=64
            Reply from 192.168.1.188: bytes=32768 time=9ms TTL=64
            Reply from 192.168.1.188: bytes=32768 time=9ms TTL=64
            Reply from 192.168.1.188: bytes=32768 time=9ms TTL=64
            ping statistics for 192.168.1.188:
            Packets: Sent = 10，Received = 9，Lost = 1 (10% loss)，
            Approximate round trip times in milli-seconds:
            Minimum = 9ms，Maximum = 12ms，Average = 9ms

這是向IP地址為192.168.1.188的計算機發送10個大小為32768B的數據包，發送10個，返回9個，丟失1個。返回數據包的最短時間為9ms，最長時間為12ms。