【正文】 中國移動城域網(wǎng)建設方案場景模型計劃部1目錄1背景...................................................................................................................................................... 5電信運營的變革............................................................................................................................ 5全業(yè)務對網(wǎng)絡帶來的挑戰(zhàn)............................................................................................................ 5目的及意義.................................................................................................................................... 62全業(yè)務城域網(wǎng)網(wǎng)絡架構(gòu)...................................................................................................................... 63全業(yè)務城域網(wǎng)組網(wǎng)要求...................................................................................................................... 8組網(wǎng)原則........................................................................................................................................ 8城域數(shù)據(jù)網(wǎng)組網(wǎng)要求.................................................................................................................... 9城域數(shù)據(jù)網(wǎng)定義及組網(wǎng)拓撲................................................................................................. 9城域數(shù)據(jù)網(wǎng)組網(wǎng)要求........................................................................................................... 10城域數(shù)據(jù)網(wǎng)中繼帶寬設置要求.......................................................................................... 11節(jié)點設備配置要求.............................................................................................................. 12城域傳送網(wǎng)組網(wǎng)要求.................................................................................................................. 12核心層.................................................................................................................................. 13匯聚層.................................................................................................................................. 14接入層.................................................................................................................................. 15寬帶接入網(wǎng)組網(wǎng)要求.................................................................................................................. 15PON接入網(wǎng)組網(wǎng)要求.......................................................................................................... 16WLAN網(wǎng)絡組網(wǎng)要求........................................................................................................... 18城域網(wǎng)各部分網(wǎng)絡互聯(lián)方案...................................................................................................... 19CMNET城域網(wǎng)和PON接入網(wǎng)互聯(lián)組網(wǎng)方案................................................................... 19CMNET城域網(wǎng)和PTN/IPRAN互聯(lián)組網(wǎng)方案.................................................................. 20光纜網(wǎng)絡建設要求...................................................................................................................... 21整體規(guī)劃.............................................................................................................................. 21光纜規(guī)劃........................................................................................................................... 22綜合業(yè)務接入?yún)^(qū)規(guī)劃....................................................................................................... 23分段建設、分步實施.......................................................................................................... 234全業(yè)務城域網(wǎng)機房設備部署及連接關(guān)系........................................................................................ 24核心機房...................................................................................................................................... 24匯聚機房...................................................................................................................................... 25業(yè)務匯聚點.......................................................................................................................... 25城域數(shù)據(jù)網(wǎng)業(yè)務接入控制節(jié)點.......................................................................................... 25基站機房/末端接入..................................................................................................................... 265各類客戶業(yè)務接入場景模型方案.................................................................................................... 27基站接入場景.............................................................................................................................. 28場景分類............................................................................................................................... 28主推方案：新增PTN/IPRAN疊加組網(wǎng)............................................................................ 28補充方案一：新增PTN/IPRAN替換組網(wǎng)......................................................................... 29補充方案二：擴容MSTP...................................................................................................... 302組網(wǎng)方案總結(jié)...................................................................................................................... 31集團客戶高等級業(yè)務場景.......................................................................................................... 31集團客戶高等級業(yè)務場景舉例.......................................................................................... 31主推方案：PTN/IPRAN直接接入城域接入層/匯聚層PTN/IPRAN............................. 32補充方案一：MSTP/SDH直接接入城域接入層/匯聚層MSTP/SDH............................. 33補充方案二：通過以太交換機/協(xié)轉(zhuǎn)（含光纖收發(fā)器）接入城域接入層PTN/IPRAN34補充方案三：通過以太交換機/協(xié)轉(zhuǎn)（含光纖收發(fā)器）接入城域接入層MSTP/SDH..35集團客戶高等級業(yè)務的內(nèi)網(wǎng)接入方式.............................................................................. 36組網(wǎng)方案總結(jié)...................................................................................................................... 36集團客戶低等級業(yè)務場景...................................