基于GMPLS的动态分布式WDM网状网路由选择算法研究

研究了在基于GMPLS的WDM网络中,当节点不具备波长变换能力并且配备有限个光收发器对时,如何为到达的业务请求建立标记交换路径(LSP)的问题。提出一种以跳数和带宽碎片要求为权重,合理分配带宽资源的新算法。仿真结果表明,该算法在保证用户业务可靠性要求的同时,能够更有效地提高全网资源的利用率,并大大降低网络阻塞的可能性。

Research on Dynamic Distributed Routing Algorithm for WDM Mesh Networks Based on GMPLS

In a WDM mesh network based on GMPLS, the issue how to setup LSPs for arriving traffic requests was investigated while nodes in the network have no capacity of wavelength change and only have limited pairs of optical transceiver. A new kind of algorithm was presented, which took hops and demands for bandwidth fragment into account, in order to distribute the bandwidth resource efficiently. The simulation results indicate that contrast to the traditional algorithm, the new algorithm can improve more effectively the resource utilization rate of the whole network, and decrease the probability of congestion in networks while satisfying the reliability demands for traffic at the same time.