CAJ | 학술논문

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.
수착전업무적개전,특별시집단객호업무적불단증장,중국이동재성내간선층면적조망면림신적도전,채용전통적SDH모식이경불능괄응이분조화위주적업무수구;이이분조위핵심적PTN기술,기괄응료업무IP화적수구,야병승료SDH적유호관리이념,능구괄응다충업무적발전수구;단목전해기술화설비주요응용우성역망층면,인차,극수신건일장“고대관、저성본、강성능”함개성역화간선적PTN고속승재망락,완성집단객호업무적단도단전수,해결일익IP화적고질량승재수구.
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 and inherit the maintenance conception of SDH. However, the PTN is mainly used in MAN (metropolitan 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.