分布式控制光网络的一种高效信令协议

为了在光网络中建立连接,信令协议需要依次配置路径沿途节点上的光交叉矩阵完成.提出了一种高效的信令协议,使各节点的光交叉矩阵的切换过程并行完成,可在光网络中实现快速光路供给.在分布式离散时间仿真平台上所做出的深入仿真结果表明此信令协议能够获得比反向预留信令协议更好的网络性能,可获得更低的阻塞概率、更短的平均连接时间和最长连接时间,尽管可能付出了稍高一些的控制带宽的代价.

An Efficient Signaling Protocol for Distributed-Controlled Optical Networks

An efficient signaling protocol, Tell-and-go, is proposed to perform fast lightpath provisioning for distributed-controlled optical wavelength-routed networks, in which switch reconfiguration can be performed in parallel at each node along the path. Simulation results indicate that the Tell-and-go signaling protocol achieves better network performance than the backward signaling protocol, in terms of lower blocking probability, shorter average lightpath setup time, in spite of slightly higher control bandwidth requirement.