利用FDL实现OBS网络中的组播业务

The multicast scheme with FDL in OBS networks

本文给出了一种 OBS 网络中组播业务的实现机制。它利用由光分路器和光纤延迟线(FDL)构成的组播功能模块实现了组播数据包在多分支节点处的复制、存储以及转发。仿真分析结果表明,该机制可以通过引入一定的时延,大幅降低丢包率。

In this paper, we proposed a multicast scheme in OBS networks. Using the multicast module which is composed of optical passive splitter and Fiber Delay Lines （FDL）, it realized the duplication, storage and forward of the multicast packets at the node which had multi downstream paths. Then we evaluated the proposed scheme using simulations which showed that the scheme could obviously reduce the packet loss rate by increasing some delay.