PTN在省内干线层面承载集客业务的组网方案研究

随着全业务的开展,特别是集团客户业务的不断增长,中国移动在省内干线层面的组网面临新的挑战,采用传统的SDH模式已经不能适应以分组化为主的业务需求;而以分组为核心的PTN技术,既适应了业务IP化的需求,也秉承了SDH的维护管理理念,能够适应多种业务的发展需求;但目前该技术和设备主要应用于城域网层面,因此,亟需新建一张"高带宽、低成本、强性能"涵盖城域和干线的PTN高速承载网络,完成集团客户业务的端到端传输,解决日益IP化的高质量承载需求。

Research of the networking proposal of PTN bearing group customer business on the provincial trunk

With the development of the whole services, especially the rapid growth of group customer service, the CMCC trunk networking faces new challenge. The traditional SDH （Synchronous Digital Hierarchy） networking mode cannot adjust to the packet service requirements, and the PTN （Packet Transport Network） is capable to adapt IP-based services the PTN is mainly used in MAN （metropolitan and inherit the maintenance conception of SDH. However, area network）. Therefore, constructing a ＂high-bandwidth, low-cost, strong-performance＂ network, covering metropolitan and provincial area, is necessary, which can resolve the E2E transport of group customer service, and achieve the high-quality IP-based service bearing requirement.