IP over WDM網(wǎng)絡(luò)的研究

對波分復用網(wǎng)絡(luò)上運行因特網(wǎng)協(xié)議的有關(guān)研究作了綜述。采用光路交換的波分復用網(wǎng)絡(luò)，側(cè)重于設(shè)計的三個方面：第一是虛拓撲設(shè)計，包括保護設(shè)計和重構(gòu)算法；第二是業(yè)務(wù)量疏導算法，單個光波長能提供巨大的帶寬，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?shù)夭⑷氩ㄩL，稱為業(yè)務(wù)量疏導，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，對進一步的研究作了討論。
關(guān) 鍵 詞 波分復用上運行因特網(wǎng)協(xié)議; 虛拓撲重構(gòu); 業(yè)務(wù)量疏導; 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