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在底层网络通信协议中使用内存映射机制为用户层应用提供了虚拟网络界面，使用户层能够方便地访问快速通信设备；通过减少系统软件的协议处理开销，有效地减少了网络通信的延迟．讨论了通信协议中的内存映射机制的设计思想和实现过程，提出了通信区的概念，利用通信区有效地完成核心与用户之间的数据交换．同时给出一个实例，对其实现与性能进行了分析．
The use of memory mapping mechanism in the underlying network communication protocol provides a virtual network interface for user layer applications so that the user layer can easily access the fast communication devices and the network communication delay is reduced effectively by reducing the protocol processing overhead of the system software. The design idea and implementation process of memory mapping mechanism in communication protocol are discussed. The concept of communication area is proposed, and the communication area is used to effectively exchange data between core and user. At the same time gives an example of its implementation and performance were analyzed.