工作在不同的层次,你得先知道OSI 7层参考模型。HUB工作在物理层,Swicth工作在数据链路层,ROUTER工作在网络层,GATEWAY工作在会话层及以上。

sungrand (suny)
2002-2-20 -04:00
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Back To Topic: Can anyone introduce some about OCI, Pro*C, please? Is there any related web site? Thanks in advance.

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