Adaptive routing planning in multi layer and multi domain optical networks

In order to improve the flexibility of multi-layer and multi domain optical network routing, and balance network load in hot period and maximize resource utilization, a global topology adaptive route based on link cost update is proposed. Considering the overall network, the global optimal primary and standby routing is obtained by taking the routing requirements and current network resources as model input, and solving the multi-layer multi domain optical network Routing planning in the network.