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电信IP城域网络面临从原先单一承载普通上网数据业务转向真正的“三重播放”即语音、视频、数据等全业务的承载上。三重播放业务引发电信IP城域网络高效承载全业务的迫切需求。从引入适合三重播放业务特点的以太网承载IP报文(IPoE)认证方式,从接入层到业务控制层采用优化的分布式用户策略,在二层汇聚网引入虚拟专用局域网服务(VPLS)等3个方面对电信全业务网络承载架构的演进思路进行探讨,有一定的工程实践意义。
Telecom IP metropolitan area network is facing a single bearer ordinary Internet data services to the real “triple play ” that is, voice, video, data and other services on the bearer. Triple Play services trigger telecom IP Metropolitan Area Network efficient carrying the urgent needs of the entire business. From the introduction of IPoE authentication mode suitable for triple play service, an optimized distributed user policy is adopted from the access layer to the service control layer, and virtual private local area network service (VPLS) is introduced on the layer 2 aggregation network Three aspects of the entire telecommunications network service carrier network architecture to explore the evolution of ideas, there is a certain practical significance of the project.