三峡建行网络改造总体设计方案书（讨论稿）二零零一年四月目录第1章三峡建行网络现状......................................................................................................................41.1网络连接现状.................................................................................................................................41.1.1三峡建行城域网现状..............................................................................................................41.1.2三峡建行局域网现状..............................................................................................................51.1.3三峡建行广域网现状..............................................................................................................61.1.4与Internet连接状况................................................................................................................71.2网络应用现状.................................................................................................................................81.2.1管理网应用现状......................................................................................................................81.2.2营业网应用现状......................................................................................................................91.2.3外连网应用现状....................................................................................................................101.3网络安全现状...............................................................................................................................111.4网络管理的现状...........................................................................................................................121.5三峡建行网络存在主要问题.......................................................................................................121.5.1三峡建行城域网存在的问题................................................................................................121.5.2营业网存在的问题：............................................................................................................131.5.3管理网（企业网）存在的问题............................................................................................131.5.4外连网存在的问题................................................................................................................14第2章网络改造的需求规定................................................................................................................152.1总体目标.......................................................................................................................................152.2网络改造需求...............................................................................................................................152.2.1三峡建行局域网....................................................................................................................152.2.2三峡建行城域网....................................................................................................................152.2.3广域网接入............................................................................................................................162.2.4网络管理的需求.............................................................................................
