Lightpath-based flooding for GMPLS-controlled all-optical networks

This letter studies routing message flooding mechanism in generalized multi-protocol label switching (GMPLS) controlled all-optical networks. We propose a lightpath-based flooding mechanism to disseminate lightpath state information rather than link state information. Analysis results reveal that our proposal achieves significant improvement in terms of control plane load. Simulation results confirm our analysis and furthermore, reveal that our proposal also achieves significant performance improvement in terms of blocking probability and setup latency