【正文】 y optical switching,. Key issues on Optical Virtual Private Networks (OVPN) are also investigated in this article. Based on these discussions, the article illustrates that further investigations on control plane architecture, traffic engineering, and services management, etc. are required, to enhance the cooperation between optical layer and upper IP layer, on resource provisioning, service discovery, Quality of Service (QoS) supporting, etc. Key words:optical burst switching。 光互聯(lián)的前期發(fā)展是什么樣的。 本文涉及內(nèi)容 ： 先前通信方面的技術(shù)有什么。 互聯(lián)網(wǎng) (Inter)業(yè)務(wù)的急劇增長(zhǎng)驅(qū)動(dòng)了高速傳輸技術(shù)和高速交換 /路由技術(shù)的需求。 本文首先 從器件（包括再生器、光轉(zhuǎn)發(fā)器、動(dòng)態(tài)光分插復(fù)用器、光交叉連接器、光開(kāi)關(guān)、交換路由器）與網(wǎng)絡(luò)管理等幾個(gè)方面介紹了光互連網(wǎng)的關(guān)鍵技術(shù)， 然后 介紹了光互連網(wǎng)的網(wǎng)絡(luò)結(jié)構(gòu) ， 光突發(fā)交換 (OBS)結(jié)合了光電路交換和光分組交換的優(yōu)點(diǎn) ， 又克服了 二者的不足，將成為下一代光互聯(lián)網(wǎng)的一種典型的核心支撐技術(shù)。 光互聯(lián)網(wǎng)絡(luò)的現(xiàn)狀與發(fā)展 畢業(yè)論文 光互聯(lián)網(wǎng)絡(luò)的現(xiàn)狀與發(fā)展 .................................................................................................................. 2 摘要 .................................................................................................................................................. 2 一、光互聯(lián)網(wǎng)絡(luò)的最新進(jìn)展 ............................................................................................................... 4 光互聯(lián)網(wǎng)絡(luò)的背景 ............................................................................................................. 4 寬帶接入網(wǎng)的發(fā)展現(xiàn)狀和應(yīng)用 .................................................................................. 5 寬帶光纖接入網(wǎng)的優(yōu)勢(shì) .............................................................................................. 5 點(diǎn)到點(diǎn)有源光纖接入網(wǎng) ...................................................................................................... 6 寬帶數(shù)字環(huán)路載波系統(tǒng) .............................................................................................. 6 點(diǎn)到點(diǎn)同步數(shù)字系列 /多業(yè)務(wù)傳送平臺(tái)系統(tǒng) ................................................................ 7 點(diǎn)到多點(diǎn)系統(tǒng) ...................................................................................................................... 8 無(wú)源光網(wǎng)絡(luò)技術(shù) ......................................................................................................... 8 ATM 無(wú)源光網(wǎng)絡(luò)和寬帶無(wú)源光網(wǎng)絡(luò) ........................................................................... 8 以太網(wǎng)無(wú)源光網(wǎng)絡(luò) /千兆以太網(wǎng)無(wú)源光網(wǎng)絡(luò) ................................................................ 9 千兆無(wú)源光網(wǎng)絡(luò) ........................................................................................................10 光互聯(lián)網(wǎng)絡(luò)的概念光互聯(lián)網(wǎng)絡(luò) (Optical Interworking) ................................................. 11 光互聯(lián)網(wǎng)絡(luò)的參考模型光互聯(lián)網(wǎng)絡(luò)的分層模型 .................................................................. 11 OUNI 是指數(shù)據(jù)網(wǎng)絡(luò)單元與光網(wǎng)絡(luò)的接口 ....................................................................... 11 光互聯(lián)網(wǎng)絡(luò)的研究課 題 .....................................................................................................12 光互聯(lián)網(wǎng)絡(luò)的參考模型 .............................................................................................12 光互聯(lián)網(wǎng)絡(luò)的參考模型、 ...................................................................................................12 數(shù)據(jù)網(wǎng)絡(luò)層與光網(wǎng)絡(luò)層的適配 ..................................................................................12 光互聯(lián)網(wǎng)絡(luò)的物理接口 ............................................................................................12 層間管理數(shù)據(jù)網(wǎng)絡(luò)層與光網(wǎng)絡(luò)層之間的層間管理功能 ...............................................12 與 SONET/SDH 基礎(chǔ)設(shè)施相連接 ...........................................................................................13 二、 IP 主導(dǎo)未來(lái) ..............................................................................................................................13 三、理想的傳送技術(shù) ——— WDM.........................................................................................................15 四、三種 IP 傳送技術(shù)次第上崗 .........................................................................................................16 IP over ATM......................................................................................................................16 IP over SDH .....................................................................................................................17 IP over WDM .....................................................................................................................17 光互聯(lián)網(wǎng)基本結(jié)構(gòu)特性 .....................................................................................................19 光互聯(lián)網(wǎng)的協(xié)議棧及功能 ..................................................................................................19 五、光互聯(lián)網(wǎng)關(guān)鍵技術(shù) .....................................................................................................................19 1 關(guān)鍵器件 .........................................................................................................................20 再生器 .....................................................................................................................20 光轉(zhuǎn)發(fā)器 .................................................................................................................20 光分插復(fù)用器 ...........................................................................................................21 光交叉連接器 ..........................................................................................................21 光開(kāi)關(guān) .....................................................................................................................23 OBS 網(wǎng)絡(luò)環(huán)境下增強(qiáng)型 GMPLS 控制面技術(shù) ..........................................................................26 六、光互聯(lián)網(wǎng)待解決的問(wèn)題 ..............................................................................................................27 數(shù)據(jù)網(wǎng)絡(luò)層與光網(wǎng)絡(luò)層的適配 ........................................................................................27 物理接口的規(guī)范 ................................................................................................................27 層間管理功能 ..................................................................................................