论文部分内容阅读
本文对公用数据网采用的分组交换和线路交换两种方式的优缺点以及当今国际上数据网的现状和发展情况进行简要的描述。文章的重点叙述了目前在世界上有代表性的分组交换数据同——TRANSPAC和TYMNET的发展过程和网络特性、结构、设备、容量、业务及国际互连等问题。本文最后提出几点有关我国发展数据通信和建立公用分组交换数据网的参考意见。
In this paper, the advantages and disadvantages of the two methods of packet switching and circuit switching that are used in public data network, and the status quo and development of data network in today’s world are briefly described. The article focuses on the current world-wide representation of packet-switched data - the evolution of TRSPSP and TYMNET and the issues of network characteristics, fabric, equipment, capacity, business, and international interconnection. At the end of this paper, some suggestions about the development of data communication and establishment of public packet-switched data network in our country are provided.