Access Network Implementation Light Into Copper Retreat The Necessity Of Reform And Implementation Plan Research

In recent years, the backbone of the year exit bandwidth ability strong, but the exit bandwidth enhancement in backbone while access network has no big improvement. The growth of the ability to access network bandwidth far behind the rapid growth of Internet traffic, and access to be productive network development bottlenecks, also called the "last mile"In broadband access network field now, most families are using ADSL (asymmetric digital subscriber line) technology to realize, the user’s various business through access into the core nets. With the sustained and rapid development of the Internet, online new business emerge in endlessly, especially in recent years, the network game, start popular such as MSN and QQ real-time network communication tools that allow people to increase the bandwidth of the network access requirements. Mainstream access technology from dial-up gradually transition to a faster ADSL and Ethernet, core online because the development of the available bandwidth and sustained growth SDH, client business flow due to Internet business growth and increased dramatically, as the bridge between user and the core network, then the access network bandwidth limited due to enter a medium with users and business requirements of the development, it has become the user and core network access "bottleneck" between.Light into copper retreat is fixed network operators to access layer network deployed the advanced idea, is mainly refers to realize "narrowband+copper cable" primarily communication network to "broadband+fiber" communications network the concrete practice of the transformation. Say simply, light into copper retreat is to point to in broadband access mode by optical replace copper, benefits is to accelerate the transmission speed and data flow, and reduce the network construction costs. Optical fiber network deployment realization varied, fiber to the roadside (FTTC), optical fiber to the floor (FTTB), optical fiber to the home (FTTH), can use FTTx (optical fiber to somewhere) network integrated generalization. After the network construction practice in recent years, with its networking EPON technology, management and business ability, etc. Advantages in light into copper got back the construction of the wide recognition and application, the current global EPON application scale more than 15 million lines, and is in rapid development and scale application stage.Optical fiber by using optical fiber transmission medium access, as with transmission capacity, high quality, high reliability, long distance and transmission anti-electromagnetism interference etc, and is the future development direction of broadband fixed access. By optical access instead of copper access has become a consensus each telecom operators.