【正文】 .......12 面向連接 ................................................................................12 統(tǒng)計復用 ................................................................................12 參考模型 ..........................................................................................13 ATM 適配層 ..............................................................................14 ATM 層 ......................................................................................15 ATM 物理層 ..............................................................................162 / 71 交換結(jié)構(gòu) ..........................................................................................16 ATM 交換結(jié)構(gòu)的基本功能 ......................................................16 ATM 交換結(jié)構(gòu)的分類 ..............................................................17 網(wǎng)絡信令 ..........................................................................................18 信令標準化 ............................................................................18 信令協(xié)議棧 ............................................................................19 UNI 信令 ..................................................................................20 NNI 信令 ..................................................................................20 信流管理 ..........................................................................................22 ATM 層業(yè)務結(jié)構(gòu) ......................................................................22 ATM 層服務質(zhì)量 ......................................................................23 流量控制 ................................................................................23 擁塞控制 ................................................................................24 IP 與 ATM 融合 .................................................................................24 CIPOA.......................................................................................25 LANE.........................................................................................26 MPOA.........................................................................................27 MPLS.........................................................................................28 IP OVER SDH（POS）技術 ..........................................................................32 基本概念 ..........................................................................................32 PPP 協(xié)議 ...........................................................................................32 IP Over SDH 的傳輸效率 ...............................................................33 技術優(yōu)缺點 ......................................................................................33 動態(tài)包傳輸（DPT）技術 ..........................................................................34 基本概念 ..........................................................................................34 網(wǎng)絡結(jié)構(gòu) ................................................................................34 智能保護切換（IPS） ..........................................................35 空間再利用協(xié)議（SRP） ......................................................36 包優(yōu)化傳輸 ............................................................................36 帶寬倍增 ................................................................................37 故障恢復模式 ........................................................................38 傳輸?shù)撵`活性及演變 ............................................................39 網(wǎng)絡管理 ................................................................................39 構(gòu)建分層體系 ..................................................................................40 DPT 技術小結(jié) ...................................................................................40 成本效率 ................................................................................41 擴展增值業(yè)務 ........................................................................41 網(wǎng)絡的健壯性 ........................................................................41 未來移植性 ............................................................................414 IP 與 ATM 的比較 ..................................................................................................423 / 71 IP 與 ATM 的競爭 .......................................................................................42 思想和目標的差異 ....................................................................................43 標準化過程的差異 ..........................................................................43 簡單實用有效與復雜求全 ..............................................................44 技術驅(qū)動與實踐（市場）驅(qū)動 ......................................................45 技術思路的差異 ........................................................................................46 有連接與無連接 ..............................................................................46 信令與路由 ......................................................................................47 服務質(zhì)量（QoS）與盡力傳送（best of effort） ....................48 網(wǎng)絡智能與終端智能 ......................................................................49 ATM 與 IP 簡要比較 ...................................................................................50 ATM 與 IP 比較小結(jié) ...................................................................................505 XX 省電力數(shù)據(jù)廣域網(wǎng)組網(wǎng)方案 ........................................................................51 技術路線的選擇 ........................................................................................51 選擇依據(jù) ..........................................................................................51 網(wǎng)絡帶寬資源 ........................................................................51 業(yè)務類型特點 ........................................................................52 未來市場定位 ........................................................................53 技術選擇 ..........................................................................................53 網(wǎng)絡設計方案 ...................................