【摘要】 分析了运营商传统IP城域网自身架构、网络运维和业务运营等面临的挑战和问题,分析了当前业内v BNG技术方案,提出了基于SDN/NFV的新型IP城域网架构,并分析了该架构具有的五大特征,然后分别从转发层面、控制层面、网络业务编排和能力开放及业务层面给出了向新型IP城域网架构的演进策略。更多还原

【Abstract】 It firstly analyzes the challenges and problems in traditional broadband IP MAN on architecture,network operation and maintenance,business operations,etc. Then it analyzes the model of vBNG,proposes a new MAN network architecture based on SDN/NFV,analyzes the five features of the architecture. And then gives the evolvement strategy to the new IP MAN architecture from the forwarding level,the control level,the network service orchestration and the service level respectively.更多还原