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本文从分析湖南移动和湖南铁通现有互联方式存在的问题入手,结合双方网络结构现状,制定了湖南移动与湖南铁通地市IP城域网互联的原则:接入网就近接入的原则、满足上级单位管理要求的原则、满足安全与IP地址管理的原则、业务归属与上层流量疏导一致的原则。在此原则上,提出了通过QinQ技术,分别在接入层和汇聚层实现两层VLAN封装,以进行业务的区分和隔离。进而提出了铁通接入网在汇聚层分流上行,接入移动SR/BRAS;移动接入网在业务控制层分流上行,接入铁通地市核心路由器的解决方案。该方案的实施,扩大了湖南铁通有线宽带的覆盖范围,增强了湖南移动全业务竞争的能力。
This article begins with the analysis of existing problems of Hunan Mobile and Hunan Tietong, and establishes the principle of interconnection between Hunan Mobile and Hunan Tietong IP Metropolitan Area Network based on the current network structure of both parties: the principle of access to the nearest access network, The principle of superior unit management requirements meets the principle of security and IP address management, and the principle that service attribution is consistent with that of upper layer traffic. In this principle, a QinQ technique is proposed to implement two-layer VLAN encapsulation at the access layer and the convergence layer separately for service differentiation and isolation. Then put forward the solution that Tietong access network divides upstream at access layer and accesses mobile SR / BRAS, and mobile access network divides upstream at service control layer to access Tietong core router. The implementation of this plan has expanded the coverage of Hunan Tietong’s wired broadband and enhanced Hunan Mobile’s overall business competitiveness.