随着近年来铁通网络的快速发展,铁通固定电话本地网大多已经形成以地市公司为本地网网管中心、各县区具有独立网管维护终端站的二级本地网网管体系结构,如图1所示。图1二级本地网网管体系结构本地网OMC(Operation and Maintenance Cen-ter)操作维护中心与各维护终端站之间的操 With the rapid development of China Railcom network in recent years, most of China Railcom fixed-line local networks have formed a secondary local network network management architecture with prefectural and municipal companies as local network management centers and independent county-level regional network management and maintenance terminal stations, as shown in Figure 1 Show. Figure 1 Two local network management architecture Local operation and maintenance center OMC OMC and maintenance terminal station between the operation