论文部分内容阅读
电话网、有线电视网和计算机网络代表着当前信息产业的三个主要方面,在信息网络的各种业务中,以IP业务为主导的数据业务占据着越来越重要的地位,并且大有超过话音业务的势头。未来宽带IP将会架设在光纤网络基础上。在宽带数据通信网络技术发展的过程中出现了两种不同的技术,即ATM和IP技术。由于ATM网络和IP网络有着各自的特点和优势,在目前的技术情况和实际条件下,不同的运营商在构建其网络时有着不同的态度和考虑。从初期的在DDN网络上架构IP网络到IP Over ATM、IP Over SDH和IP OverDWDM等多种模式,IP网络
Telephone network, cable network and computer network represent the three major aspects of the current information industry. In the various business of information network, the data service dominated by IP service occupies an increasingly important position, and greatly exceeds Voice business momentum. Broadband IP will be set up on the basis of optical networks in the future. Two different technologies have emerged in the development of broadband data communications networking technologies, ATM and IP. As ATM networks and IP networks have their own characteristics and advantages, different operators have different attitudes and considerations in building their networks under the current technical conditions and actual conditions. From the initial structure of the DDN network in the IP network to IP Over ATM, IP Over SDH and IP OverDWDM and other modes, IP network