A Topology Aggregation Algorithm Based on Asymmetric Multi-Domain Optical Network

With the development of optical network, multi-domain construction which can enhance the routing scalability becomes the inevitable trend. Each domain has to aggregate the inner topology information through topology aggregation algorithm and sends it to other domains, so the topology aggregation directly influences the routing accuracy. In this paper, we propose a novel topology aggregation called source- oriented node label order first (SNLOF), which is based on asymmetric directed multi-domain optical network. This algorithm which has good routing performance resolves the contradiction between routing complexity and accuracy.