近几年,我国专线、宽带上网发展迅猛,全国从骨干网到接入网都基本实现了宽带化,信息高速公路初见轮廓。中国已拥有世界最长的高速传输网络,互联网网络瓶颈节节打通,正在形成端到端的宽带应用环境。据信息产业部的统计,到2003年底,电信行业宽带用户数已经达到1259.2万户,其中ADS In recent years, China’s green, broadband Internet has developed rapidly, the country from the backbone network to the access network are basically realized broadband, information expressway initial outline. China already has the longest high-speed transmission network in the world and the Internet network bottleneck is getting through, forming an end-to-end broadband application environment. According to the statistics of the Ministry of Information Industry, by the end of 2003, the number of broadband subscribers in the telecommunications industry has reached 12.592 million, of which ADS