第一章介绍宽带接入网络技术的现状和发展趋势，对几种接入技术进行了比较。
The first chapter introduce the current status and tendency of the network development, and compare several access technology.
可是IP城域网宽带接入网络的建设模式和相应的技术策略因为业务的特点不同，呈现出很多的变化。
However, the network model and corresponding technology strategy of MAN IP broadband access network present variety variously due to different operation characteristics.
在宽带接入网络中，被连接到接入节点(201)的多个最终用户(10)被链接到多个服务供应商(30)，所述多个服务供应商(30)被连接到边缘节点(202)。
In a broadband access network multiple end users (10) connected to access nodes (201) are linked to multiple service providers (30) connected to an edge node (202).
GPON作为一种先进的宽带光接入网技术，它为打破接入网段的网络带宽瓶颈提供了解决方案，是今后宽带接入网的较好选择。
GPON, as a advanced broad band access network technology, is a solution for breaking the bottleneck of network band of access network.
作为信息公路“最后一公里”的接入网部分已经成为当前网络瓶颈之所在，各种宽带接入技术也成为了目前研究的热点。
As the "last kilometer" of information highway, access net is the bottleneck of the current networks. So the technology of broadband access turns into the hotspot of the research.
作为信息公路“最后一公里”的接入网部分已经成为当前网络瓶颈之所在，各种宽带接入技术也成为了目前研究的热点。
As the "last kilometer" of information highway, access net is the bottleneck of the current networks. So the technology of broadband access turns into the hotspot of the research.
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