怎样看出网络丢包和延时啊？（麻烦具体些，网上搜的都太草！）那应该怎样解决呢？谢谢！

ping命令
开始 运行 cmd ping www.sina.com.cn

以下是内容
结果是 Minimum = 79ms, Maximum = 83ms, Average = 81ms
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Microsoft Windows XP [版本 5.1.2600]
(C) 版权所有 1985-2001 Microsoft Corp.

C:\Documents and Settings\Owner>ping www.sina.com.cn

Pinging dorado.sina.com.cn [60.215.128.128] with 32 bytes of data:

Reply from 60.215.128.128: bytes=32 time=81ms TTL=52
Reply from 60.215.128.128: bytes=32 time=79ms TTL=52
Reply from 60.215.128.128: bytes=32 time=81ms TTL=52
Reply from 60.215.128.128: bytes=32 time=83ms TTL=52

Ping statistics for 60.215.128.128:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum