基于NS2的OBS网络仿真平台研究与实现

Research on NS2-based optical burst switching network simulation platform

给出了一种基于NS-2的OBS网络仿真平台——OBS-NP(OBS-NS2-platform)。该平台通过扩展NS-2中的节点类与链路类,支持对光突发交换(OBS)网络的运行及关键算法的仿真。在详细描述OBS-NP系统构成的基础上,以一个9节点OBS网络为基础,对网络中突发包的时延、吞吐量和资源利用率进行了仿真,并给出了突发包的路由信息。最后,对OBS-NP仿真结果的准确性进行了分析和讨论。

An OBS network simulation platform OBS-NP （OBS-NS2-plafform） based on NS-2 was presented. It extended the node class and link class on the basis of NS-2, and provideed the simulation surroundings for key optical burst switching algorithms. After detailed description for the structure of the OBS-NP system, a OBS network with nine nodes was taken as an example to obtain muting results and some significant network parameters, such as the throughput, delay of the burst packets and resource utilization. Finally, the accuracy of the simulation results was discussed and analyzed.