软件定义光网络中基于控制器的多域协同恢复机制

Multi domain cooperative recovery mechanism based on controller in software defined optical network

光网络引入集中式的管控系统后,网络中的恢复机制更加丰富多样。对多域协同的端到端业务恢复机制、恢复策略和恢复流程进行了分析,通过实验验证了在不同故障位置下采用不同恢复模式的恢复时间差异,并在分析结果的基础上提出了用于控制器之间协同的恢复流程和恢复策略。

After the introduction of centralized management and control system in optical network,the recovery mechanism in the network is more diverse.The end to end service recovery mechanism,the recovery strategy and recovery process of multi domain collaboration are also analyzed.The recovery time of adopting disparate recovery mechanisms for different failure locations is further validated through experiments.Based on the experiment results,the recovery process and recovery policy for coordination among controllers are proposed in this paper.