多种以太网交换机仿真教学系统的硬件设计与实现

在高等教育学校中,为了更好地培养IT专业学生的理论结合实际的能力,大多数学校都在寻找适合自身实验室条件和师资力量的实验设备,而以太网交换机实践教学作为计算机网络教学中的重要组成部分,也存在着这种需求.为了满足某高校计算机网络实验室对以太网交换机的市场需求,设计了一款多种以太网交换机仿真教学系统.综合考虑以太网交换机的发展现状和趋势,分析系统的功能需求和可行性后,采用了硬件层、驱动层和软件应用层三级体系结构,使用软硬件结合的方法进行实现.使用Realtek公司的以太网控制器RTL8309SC和德州仪器TI公司的MSP430F149单片机成功搭建了一个具有标准接口的硬件支持平台,实现了系统的硬件层和驱动层.该硬件支持平台可以为使用者搭建一个性价比较高的真实网络环境,由于是自主研发,所以可以更灵活地实现以太网交换机硬件相关实验,具有较强的实用价值.

HARDWARE DESIGN AND REALIZATION OF MISCELLANEOUS ETHERNET SWITCH SIMULATION TEACHING SYSTEM

In order to provide a better train for IT major students and enhance their ability of theory combining with practice,most higher education schools are looking for experimental equipments adapt to their own laboratory conditions and teachers.Ethernet switch practice teaching is an important part of computer network teaching course,so there is being such need,too.Aim at meeting such Ethernet switches＇ market demand in a university＇s computer network laboratory,it designed a Miscellaneous Ethernet Switch Simulation Teaching System.Based on an overall consideration of the current stage and development trends of Ethernet switch,system functional requirements and feasibility,it used a three-layer architecture——hardware layer,driver layer and software application layer,and realized using hardware combined with software method.This thesis,using Realtek＇s Ethernet controller RTL8309SC and TI＇s single-chip MSP430F149,successfully builds a hardware supporting platform with standard interface,achieve the goal of hardware layer and driver layer.It not only provides a real network environment of good cost performance for users,but also flexibly provides hardware related Ethernet switch teaching experiments as a result of independent researching and development,has a strong practical value.