GPON中业务数据的同步机制设计  

Design of Mechanism for Service Data Synchronization in GPON

作　　者：曾兴胜[1] 黄东[1] 

机构地区：[1]东南大学自动化学院,江苏南京210096

出　　处：《计算机技术与发展》2010年第2期33-36,共4页Computer Technology and Development

摘　　要：文中设计了GPON业务数据同步的实现机制。吉比特无源光网络(GPON)是旨在实现全业务的下一代宽带接入网技术,由于具有高带宽、低成本和较高的QoS保证等优点,受到广泛关注。GPON业务数据同步的实现机制采用同步段的组织机制,通过OLT用户数据管理主机定时周期性广播同步标识符,实现用户数据处理机和用户数据管理备机上的数据得到实时更新,使得用户数据管理主机发生故障时业务保持连续。它既能满足时间上的实时性,又能在系统上电和主备倒换时对数据进行批量同步。同时针对基于GPON的FTTH应用场景,分析了同步段同步机制的优缺点。A mechanism for service data synchronization in GPON was designed. Gigabit passive optical network was a next generation broadband access network with the purpose of achieving full service access, and it was widely considered for characteristics of high- band- width, low- cost and good QoS （Quality of Service）. The mechanism for service data synchronization in GleN updated immediately data in data processor and data manager by using an organization mechanism ＂synchronization segment＂ and broadcasting synchronization identifier periodically. It met the requirement of real - time and batch of data synchronization when the system was turned on and switched. Meanwhile advantages and disadvantages of the mechanism were analyzed in the application scene of FTTH based on GPON technology.

关 键 词：吉比特无源光网络 光线路终端 数据同步 同步段 标识符 

分 类 号：TP31[自动化与计算机技术—计算机软件与理论]