The scheme adopts the advanced gap technology and the network connection control technology , which can effectively protect the information of sata harddisk of the computer connected to a network 该方案采用先进的物理隔离技术和网络连接控制技术，可对连网计算机的sata硬盘信息实施有效的保护。
It successfully resolves the problems of connection , communication and cooperation between information appliances and service . and it realizes simple connection and simple control among information appliances 通过该技术成功解决了设备和服务之间互联、互通、互操作等问题,实现了设备连接控制操作简单化、智能化。
The upside host computer fasten on controlling each downside i / o interface crate on the communication chain , and downside i / o interface crates directly connect with control panel or other hardware devices and dispersedly control each input and output channels of the interface system 上位主机集中监控通信链路中各个下位i o接口机箱，下位i o接口机箱直接连接控制盘台或其它硬件设备，分散控制接口系统的各个输入输出通道。
The paper discusses following issues in the introduction of the modules : dos defense support in the pppoe protocol ; bring forwards and implement a pppoe connection controlling method based on ppp ; windows tapi - oids sequence which the virtual dialup adapter has to deal with properly ; how to deal with the communication between kernel driver and the application the paper makes an all - sided study on the pppoe protocol for the first time in china , so it has relatively important values of reference for following study and developing ; it not only realizes a practical tool for adsl , which has tremendous economy profits , but also perfects the pppoe c / s platform , which could support corresponding r & d actives at source code level 在对这些功能模块的介绍过程中还做了以下工作：探讨了pppoe协议在防范dos攻击方面的支持；提出并实现了一种基于ppp协议的pppoe连接控制方法；记载了虚拟拨号网卡完成安装和开始工作所要正确处理的windows系统的tapi序列；使windows应用程序与核心驱动程序之间正确通讯。本课题在国内较早对pppoe协议进行了较为全面的研究，故对后继的开发和研究都有着较为重要的参考价值；该课题不仅实现了一个实用的adsl工具，带来了可观的经济效益，更完善了在pc上实现的pppoe ‘服务器/客户端’结构平台，从而为相关研发提供源代码级的支持。
It will play a great realistic role in improving home information level to research these new technologies , to resolve the problem of connection , communication and cooperation among information appliances , and to realize simple connection and simple control . they will accelerate the popularity of information appliances and the advancement of home network 研究这些新技术，解决设备间互连、互通、互操作问题，实现设备连接控制操作简单化、人性化，对加速信息家电的普及，促进家庭网络的发展，提高家庭信息化水平有着重要的现实意义。
As the manager of whole field bus net , the interface computer sets and controls all the i / o interface crates on the communication chain ; and i / o interface crates connect with control panel or other hardware devices using different function cards , dispersedly controlling each input and output channels of the interface system 接口计算机作为整个现场总线网络的管理者，配置和管理通信链路中i o接口机箱运行； i o接口机箱则通过机箱内的不同功能的多个板卡，连接控制盘台或其它硬件设备，分散控制接口系统的各个输入输出通道。
On the other hand , atm is connection - oriented , the implementation of cac function for svc depends on atm signaling system . however , as a result of having no necessary functions of call and connection control , the protocol stacks for atm signa ling defined by itu - t can not realize the function of cac and can not be used directly in the atm equipment 另一方面， atm是面向连接的，交换型虚连接（ svc ）真正体现了atm技术的灵活性，与svc相应的cac功能则依赖于atm信令系统来完成，然而itu - t所定义的atmuni和nni信令协议栈由于缺乏必要的呼叫/连接控制功能，从而无法对cac进行支持且无法直接应用于各种atm设备中。
