基于仿真软件对协议数据单元的可视分析

Visual Analysis of Protocol Data Unit based on Simulation Software

协议数据单元是计算机网络体系结构和通信协议的重要内容,但对于初学者来说,该部分知识抽象、枯燥、难以理解。为了提高学生学习兴趣和教学效果,通过Packet Tracer仿真软件的模拟方式将通信过程进行动态化、可视化展现。以网络通信中的域名解析为例进行实验设计,可视化呈现了协议数据单元的数据结构和内容,建立了与网络体系结构的对应关系,并做详细讲解。有利于学生对复杂的通信数据和网络协议进行深入理解和学习,同时培养学生实践能力,该方法可以在其他网络协议的教学过程中进行示范和推广。

Protocol data unit is an important part of computer network architecture and communication protocol,but for beginners,this part of knowledge is abstract,boring and difficult to understand.In order to improve students interest in learning and teaching effect,the communication process is displayed dynamically and visually through the simulation of Packet Tracer simulation software.Taking domain name resolution in network communication as an example,the experiment design visually presents the data structure and content of protocol data unit,establishes the corresponding relationship with network architecture,and gives a detailed explanation.It is helpful for students to deeply understand and learn complex communication data and network protocols,and to cultivate students’ practical ability.This method can be demonstrated and promoted in the teaching process of other network protocols.