论文部分内容阅读
随着信息技术的不断发展,传统意义上的三网(计算机网络、电话网络、有线电视网络)在技术和业务上开始互相渗透和交叉,三网融合已是大势所趋。虽然光纤到户是今后网络传输发展的方向,但在短期内难以实现,寻求一种经济、可靠、先进的接入方法来解决“最后一公里”是我们关注的热点问题。目前可供用户选择的接入方式有:ADSL接入、ISDN接入、DDN接入、LAX接入、CM(Cable Modem—电缆调制解调器)接入等。鉴于我国已经建成世界最大的有线电视网络,资源的优势与宽带效应无疑是
With the continuous development of information technology, the triple play (computer network, telephone network, cable television network) in the traditional sense has started to penetrate and cross each other in technology and business. The triple play has become the trend of the times. Although FTTH is the future direction of network transmission development, it is hard to be realized in the short term. It is a hot issue that we are looking for to find an economical, reliable and advanced access method to solve the “last mile”. At present, the available access modes for users are: ADSL access, ISDN access, DDN access, LAX access, and CM (Cable Modem) access. Given our country has built the world’s largest cable network, the advantages of resources and broadband effect are undoubtedly