With the development of internet and the constant appearances of the high - bandwith networked application , the power of the migration from traditional ethernet lan to fastethernet lan or gigabitethernet lan becomes stronger and stronger . today , 10 / 100mbps fastethernet lan has become the mainstream . in the network environment with tens of nodes , the ethernet switch has been the absolute necessary network device 随着互联网的发展、高带宽占用率的应用系统不断出现，从传统以太网向快速以太网( 100mb s ， ieee802 . 3u )和千兆以太网( 1000mb s , ieee802 . 3z和ieee802 . 3ab )的迁移动力就越来越强劲。
Finally , according to the requirement that the transparent data must be exchanged interactively on space - flight and aerial distributed experiment and measurement system , the method that the distributed experiment and measurement system with the middle component of virtual shared memory is introduced , and its software wraps based on fast ethernet , rpc and broadcasting data are developed . according to the character of multi - task and high real - time in ivems , the technique of management , fault tolerance and the synchrony of multi - line are discussed detailedly 在此基础上针对航天、航空产品的分布式试验与测试系统对透明数据交互的需求，采用虚拟共享内存中件构造分布式试验与测试系统的方法，参与设计了虚拟共享内存中件，并独立完成了基于快速以太网、 rpc和udp广播数据的虚拟共享内存中件的通讯技术设计与实现。
It won the 1998 gordon bell price performance prize . this is remarkable , perhaps ironic even , given mr . bell s professional association with the microsoft bay area research center and the fact that the loki cluster consisted of 16 200 mhz cpus networked together with fast ethernet running under linux 这是不平常的，甚至可能是讽刺性的：设想一下bell先生与microsoft bay area研究中心的职业联系，以及由快速以太网联接的16块200 mhz cpu所组成的loki群集运行在linux下这一事实。
The system is consist of the main data processing board which is based onthe fpga device and fast ethernet phyceiver rtl8201l and a - law pcm data encoder and decorder chip msm7702 - 3 , and the dial - up and display board which is based on mcu . the main board would carry out the core task of data processing , such as voice data packing and unpacking , the ethernet frame processing , protocol processing , call processing , etc . the dial - up and display board would carry out the task of display the ip address which is input by consumer and status of network during talk period from the main board , and so on . in the paper the system of lan ip telephone and the tcp / ip protocol is introduced firstly , then the fpga device is stated . after that the fpga - based hardware scheme is introduced in detail in chapter four 系统以altera公司的acex1k系列的fpga和快速以太网控制器rtl8201l和语音编解码芯片msm7702 - 3为核心构建了数据处理主板和以单片机为控制器的拨号显示子板组成。数据处理主板的核心任务，包括语音数据处理、以太网帧处理、协议处理、呼叫处理等。拨号显示子板则完成通话前的显示用户所拨过的ip地址，通话期间网络状态的显示等等。
In this thesis , using the computer managing system for scheduling of manufacture in thermoelectricity plant of panzhihua iron and steel ( group ) co . as studied object , the idea and the theoretic of a new producing , dealing in and managing mode for modern enterprise , have been set forth . based on studied and analyzed of the demands for scheduling of manufacture in thermoelectricity plant , the basal structure of the computer managing system for scheduling of manufacture in thermoelectricity plant have been brought forward , at the same time , the designing method and idea for scheduling of manufacture system network in thermoelectricity plant have been brought forward . using fast ethernet technique , switch technique , windows nt & sql server database managing technique and so on , the network has been implemented 文章以攀钢热电厂生产调度系统为对象，阐述了作为现代企业新型生产、经营管理模式的基本思想及理念，在研究分析热电厂生产调度系统需求的基础上，提出了构筑热电厂生产调度管理网络系统的基本框架，同时分析提出了该网络系统的设计方法和思路，应用先进的快速以太网技术、交换技术及windowsnt与sqlserver数据库管理等技术，实现网络系统；从数据库结构、数据安全等方面，提出了适应热电厂生产调动系统的数据库结构；重点阐述了数据采集的思路以及详细实施方法。
Our researching work developed a high performance fast ethernet switcher with networking management , which is one of the best solution schemes of fttb ( fiber to the building ) in intelligence uptown . this ethernet switcher can give each terminal user 1 oombps network bandwidth and make two multimode fiber ports bound into a logic port 本课题研制了一种基于网络管理的高性能快速以太网交换机，该以太网交换机是智能小区的光纤到楼的最佳解决方案之一。该以太网交换机能提供给每一个终端用户100mbps的网络带宽，并且能将两个多模光纤的物理端口捆绑成一个逻辑端口。
By experiment , the influence of some factors ( node numbers , frame length and communication speed ) on real time characteristic of etheraet is researched , and real time characteristic of ethemet and fast ethemet under three information releasing modes ( synchronous , random and scheduled ) is investigated 通过实验研究了节点数目、帧长度和通信速率等因素对以太网实时能力的影响，研究工业控制应用中，在同时、随机、调度三种信息发送方式下，标准以太网和快速以太网的实时特性。
