This application describes, among others, fiber ring networks with two fiber rings to provide local fiber failure protection in each node and capability for each node to broadcast to other nodes, and to establish uni-directional and bi-directional communications with one or more selected nodes. Each...http://www.google.fr/patents/US20050158047?utm_source=gb-gplus-shareBrevet US20050158047 - Optical ring networks with failure protection mechanisms
Optical ring networks with failure protection mechanisms
