摘要
介绍了一个实验性光纤区域网，它为开环双总线拓扑结构，每条总线上的比特率为１５５．５２Ｍｂｐｓ，采用ＡＴＭ（异步传输模式）技术和修改的８０２．６ＤＱＤＢ媒质接入控制（ＭＡＣ）协议，使用全分组交换，信息单元格式与宽带综合业务数字网完全兼容。通过网关，该网可以和宽带数字微波网、ＣＳＡＴ网、卫星广播电视系统及以太网相连，允许连接多至２５４个节点，两节点之间的距离可达５ｋｍ或更长，使用１．３μｍ波长单模光纤作为传输媒质。
The fiber optic technology has matured to the point where Metropolitan Area Networks(MAN)can be built to operate at speeds from 150Mbps to more than IGbps. This paper introduces an experimental fiber optic MAN.The topology of this MAN is an open looped dual bus,and the data rate at each bus is 155.520 Mbps.We apply ATM technique and modified,802.6 DODB MAC protocol,using universal packet switching.The cell format is completely.compatible with B-ISDN cell.Through gateway the MAN can be interconnected with the Broadband Data Micowave Network,VSAT,Satellite Broadcast TV System,and Ethernet.There are up to 254 nodes connecting to the network,and the distance between two adjacent nodes covers f more than 5 kilometers.We use 1.3μm SMF as the transmission medium.This paper emphasizes on the design and implementation of the Medium Access Control(MAC) Protocol
出处
《高技术通讯》
CAS
CSCD
1996年第3期19-23,共5页
Chinese High Technology Letters
基金
国家自然科学基金
关键词
光纤通信
宽带光纤区域网
节点站
设计
Metropolitan area network
Modified distributed queue dual bus
Medium access control
