Casellas Ramon, Martínez Ricardo, Muñoz Raül, Liu Lei, Tsuritani Takehiro, Morita Itsuro, Tsurusawa Munefumi
Centre Tecnològic de Telecomunicacions de Catalunya (CTTC), Av. Carl Friedrich Gauss n7, Castelldefels, Spain.
Opt Express. 2011 Dec 12;19(26):B611-20. doi: 10.1364/OE.19.00B611.
We present a lab-trial of the designed and implemented path computation architecture for multi-domain translucent wavelength switched optical networks (WSON), using hierarchical Path Computation Elements (H-PCE). The approach is based on the dynamic aggregation of the domain topologies, represented as a virtual link meshes at a higher level, in order to perform dynamic domain sequence selection. We detail the extended path computation procedures, involving both domain selections considering inter domain links and segment expansions which are impairment-aware, along with the proposed control plane protocol extensions. We validate the approach with the overall performance of the end to end path computation latency, highlighting the benefits of parallelization.
我们展示了一种针对多域半透明波长交换光网络（WSON）的设计并实现的路径计算架构的实验室试验，该试验使用分层路径计算元素（H-PCE）。该方法基于域拓扑的动态聚合，在更高层次上表示为虚拟链路网格，以便执行动态域序列选择。我们详细介绍了扩展的路径计算过程，包括考虑域间链路的域选择和具有损伤感知的段扩展，以及所提出的控制平面协议扩展。我们通过端到端路径计算延迟的整体性能验证了该方法，突出了并行化的好处。
