When the client issues connect, the tcp_output function is called at the protocol layer, which outputs the SYN packet onto the interface.
当客户端发布connect时,在协议层调用tcp _ out put函数,将SY n包输出到接口。
According to the function of the different process in process Pair, the model is divided into Agent Transfer Layer and User Interface Layer.
根据进程对中不同进程的功能,模型分为代理传输层和用户接口层。
The third layer is application layer which is in charge of transform the users' demand to invoke the interface of function layers.
第三层为应用层,负责把用户的应用转化为对功能组件标准接口的调用来实现。
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