光突发交换网络结构与路由技术研究

Research on Network Structure and Routing Technology of Optical Burst Switching

光突发交换是面向下一代因特网的光交换模式,是光电路交换(OCS)和光分组交换(OPS)的有效折衷方案,避免了各自的缺点。在OBS中,使用的带宽粒度介于光电路交换和光分组交换之间,比光电路交换灵活,比光分组交换易于实现,是很有发展前途的光交换技术。路由技术在光突发交换中起重要作用,在很大程度上影响着光突发交换网络的性能。给出了路由机理和路由计算的流程。

Optical burst switching （OBS） technology is researched. Optical Burst Switching is the optical switching mode facing the next generation intemet, which combines the advantages of both optical circuit switching （OCS） and optical packet switching （OPS）, while avoids their shortages. In OBS network, the bandwidth granularity between OCS and OPS. OBS is more flexible than OCS and easier than OPS, which has a bright prospect as a kind of optical technology. The routing technology plays an important role in OBS technology and has a great influence on the performance of OBS network. Routing mechanism and routing calculation flow diagram are introduced.