ping的功能

[-t]
Ping the specified host until stopped.
To see statistics and continue - type Control-Break;To stop - type Control-C.
不停的ping地方主機，直到你按下Control-C。


[-a] 
Resolve addresses to hostnames.
解析電腦NetBios名。 


[-n count] 
count Number of echo requests to send.
發送count指定的Echo資料包數。 


[-l size]
size Send buffer size.
定義echo資料包大小。


[-f]
Set Don't Fragment flag in packet.
在資料包中發送“不要分段”標誌。 


[-i TTL]
TTL Time To Live.
指定TTL值在對方的系統裡停留的時間。 


[-v TOS] 
TOS Type Of Service.
將“服務類型”字段設置為 tos 指定的值。 


[-r count] 
count Record route for count hops.
在“記錄路由”字段中記錄傳出和返回資料包的路由。 


[-s nount]
count Timestamp for count hops.
指定 count 指定的躍點數的時間戳。 

[-j host-list] 
host-list Loose source route along host-list.
利用 computer-list 指定的電腦列表路由資料包。


[-k host-list] 
host-list Strict source route along host-list.
利用 computer-list 指定的電腦列表路由資料包。


[-w timeout]
timeout Timeout in milliseconds to wait for each reply.
指定超時間隔，單位為毫秒。

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