IP over WDM網(wǎng)絡(luò)的研究

對(duì)波分復(fù)用網(wǎng)絡(luò)上運(yùn)行因特網(wǎng)協(xié)議的有關(guān)研究作了綜述。采用光路交換的波分復(fù)用網(wǎng)絡(luò)，側(cè)重于設(shè)計(jì)的三個(gè)方面：第一是虛拓?fù)湓O(shè)計(jì)，包括保護(hù)設(shè)計(jì)和重構(gòu)算法；第二是業(yè)務(wù)量疏導(dǎo)算法，單個(gè)光波長(zhǎng)能提供巨大的帶寬，而業(yè)務(wù)的傳輸速率通常低得多，則需要將低速業(yè)務(wù)適當(dāng)?shù)夭⑷氩ㄩL(zhǎng)，稱(chēng)為業(yè)務(wù)量疏導(dǎo)，以獲得良好的網(wǎng)絡(luò)性能并降低成本；第三是網(wǎng)絡(luò)抗毀。最后，對(duì)進(jìn)一步的研究作了討論。
關(guān) 鍵 詞 波分復(fù)用上運(yùn)行因特網(wǎng)協(xié)議; 虛拓?fù)渲貥?gòu); 業(yè)務(wù)量疏導(dǎo); 網(wǎng)絡(luò)抗毀

Abstract In this paper, an overview of research on the IP over wavelength division multiplexing networks using optical path switching is presented. Three aspects of the design are emphasized. The first is the design of virtual topology, including protection design and reconfiguration algorithms. The second is on the algorithms for traffic grooming. An optical wavelength can provide huge bandwith, but the transmission rates of the services are usually much lower. Low rate services should be appropriately merged into the wavelengths in the network, which is called traffic grooming, to obtain good network performance and lower cost. The third is on the network survivability. Finally, problems for further research are discussed.
Key words IP over WDM; virtual topology reconfiguration; traffic grooming; network survivability