目前电信运营中常见的宽带接入方式以IP DsLAM和纯二层LAN接入为主。随着宽带业务急剧增长，在网络规模逐渐扩大的同时，产生了不适应宽带业务发展的瓶颈，其中比较尖锐的就是用户定位识别问题并由此导致了用户及其业务不可控。-Currently, the common telecom operators, broadband access, LAN access to the IP DsLAM and pure two-story main. With the rapid growth of broadband services, while the network gradually expand the scale to produce not suited to the development of broadband services bottlenecks, sharp user location identification problems and resulting uncontrollable users and their business.