It also includes the part of decoder of protocol data, ip fragments reassembling, tcp stream data reassembling and http decoding 对于捕获的协议数据根据不同的协议进行解码,预处理模块则能对ip分片进行重组、对tcp流数据还原以及htfp解码。
The model can simulate the transmission and receive of protocols data over the wireless broadcast of hf links, and verify the functions of some part protocols 通过网络模型可以仿真多个节点在短波开放的无线广播信道下协议数据的发送和接收处理,对网络协议功能进行验证。
On the basis of expansion of management information base and protocol data unit of simple network management protocol, a net monitor system for application software was designed and implemented 摘要对简单网络管理协议中管理信息和协议数据单元进行扩充,设计并实现面向应用软件的网络监控系统。
This article describes a full structure of dicom . . on the base of sufficiently understand dicom, designed all types of pdu ( protocol data unit ) and realized dicom communicating model based (2)在充分认识标准的基础上,封装了各种类型的协议数据单元,实现了基于tcp/ip协议的dicom网络通讯模型。
The former realize hart protocol data link layer and command layer; the latter realize data collection, processing and controlling . the system works in interrupt manner to satisfy real-time demand 其中hart通信程序为hart协议数据链路层和应用层的软件实现,测控程序主要包括数据采集、数据处理和控制运算的部分。
Tdi filter driver may obtain detailed information of process accessing network and intercept bottom protocol data package of network protocol stack, so it can intercept most trojan horses and back door viruses tdi过滤驱动程序可以得到访问网络的进程的详细信息,并能够拦截网络协议栈中底层协议的数据包,可以很容易地拦截一些木马和后门程序。
Information technology-telecommunications and information exchange between systems-local and metropolitan area networks-specific requirements-part 2 : logical link control-supplement 7 : optional toleration of duplicate information transfer format protocol data units 信息技术.系统间远程通信和信息交换.局域网和城域网.特殊要求.第2部分:逻辑传输控制.补充7:复制信息转换方式的兼容
The parts of smart card electronic characteristic, signal timing, character transmission protocol defined in standard are implemented by hardware, and atr data analysis, application protocol data unit transmission refered by standard are implemented by software 其中,对标准中定义的智能卡电子特性、信号时序以及字符的传输协议等部分由硬件完成,而标准中涉及到的atr数据包解析,应用协议数据单元等部分由软件实现。
Hf manet is a kind of manet that uses short wave channel as the physics medium . mac layer protocols are the core of hf manet to become a network . link layer protocols mainly research on medium access protocol, mac address, automatic link establishment technologies, protocol data structure and data transmission protocol 链路层协议是短波自组织网技术的核心,其主要研究为信道接入协议、链路层地址标识、自动链路建立、协议帧格式及数据帧传输协议等。
This paper puts forward solutions which aim at several kernel technologies of this system project : ( 1 ) in order to complete the communication between, the parallel correspondence circuit suit for this system is built on the base of the smc source . ( 2 ) the theory about data correspondence, for example communication protocols data chain data exchange and error control, is used in this system . ( 3 ) the error control technology is discussed in the aspects of hardware and software : the odd and even correction of 51 smc serial communication and a fast crc suit for smc 本文针对现有系统方案几个核心技术,提出了以下解决方法:(1)为完成主从cpu之间的通信,在现有单片机资源基础上搭建适合本系统的并口通信电路。(2)将数据通信的理论如通信协议、数据链路、数据交换及差错控制等运用于该系统中。(3)从硬件和软件两个方面探讨了差错控制技术:51单片机串行通信中软硬件结合奇偶校验;其次采用了一种适合单片机的快速crc校验技术。