城域网全业务端到端的热备保护策略研究  

Research on Full-service End-to-end Hot Standby Protection Strategy for MAN

作　　者：张龙江[1] 张扬[1] 姜响应 Zhang Longjiang;Zhang Yang;Jiang Xiangying(China Unicom Jinan Branch,Jinan 250002,China;China Unicom Qingdao Branch,Qingdao 266001,China)

机构地区：[1]中国联通济南分公司,山东济南250002 [2]中国联通青岛分公司,山东青岛266001

出　　处：《邮电设计技术》2020年第3期39-44,共6页Designing Techniques of Posts and Telecommunications

摘　　要：城域网采用的传统汇聚层V字型上联方式的组网架构,汇聚层发生单点故障时容易出现大面积全业务中断。从提升用户业务可靠性的角度出发,以降低单点风险为目的来评估优化现有网络。通过对城域网全业务端到端热备保护策略的研究和试点,探索出BAS/SR/大二层的网络架构优化和自动热备策略,最大程度保障故障发生时的用户业务的连续性,最终有效提升用户感知度。MAN adopts the traditional convergence layer V-type interconnection network architecture,which is prone to large-scale fullservice interruption when a single point failure occurs in the convergence layer.From the point of view of improving user service reliability,the existing network is evaluated and optimized for the purpose of reducing single-point risk.Through the research and pilot of end-to-end hot standby protection strategy for MAN,the optimization of network architecture and automatic hot standby strategy for BAS/SR/Layer 2 are explored to maximize the continuity of user services in case of failure,and ultimately effectively enhance user perception.

关 键 词：城域网 热备 业务持续性 用户感知度 

分 类 号：TN919[电子电信—通信与信息系统]