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ping 的故事

coolcd
joined: 2008-01-21
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1subject: ping 的故事Promote 0 Bookmark 02010-11-22quote  

The Story of the PING Program

I named it after the sound that a sonar makes, inspired by the whole principle of echo-location. In college I'd done a lot of modeling of sonar and radar systems, so the "Cyberspace" analogy seemed very apt. It's exactly the same paradigm applied to a new problem domain: ping uses timed IP/ICMP ECHO_REQUEST and ECHO_REPLY packets to probe the "distance" to the target machine.

 

原來 ping 的概念是從聲納的原理來的~

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