本文结合现有技术特点及发展 ,根据电信新业务对技术的要求、各种技术的优缺点等分析其在宽带网中的应用和市场前景 ,认为VDSL是近期最适宜推广的接入技术 ;以太网技术用于电信城域网存在较难克服的缺点 ;并论及电信级以太网的组网和设备选型。 In this paper, based on the characteristics and development of the existing technologies, according to the requirements of the new services of telecommunications, the advantages and disadvantages of various technologies and other analysis of its application in broadband networks and market prospects, that VDSL is the most appropriate extension of the recent access technology; Ethernet Network technology for the telecom metro there are more difficult to overcome the shortcomings; and talked about Carrier Ethernet networking and equipment selection.