Alcatel

Claudio De Girolamo

Andrea Maria Mazzini

Sergio Belotti

Mariangela Conti

A method for the protection of fiber optic ring-shaped transport networks, the networks including network elements connected by spans, optical paths being installed between the network elements, the method including the steps of providing each network element with information concerning the network architecture; providing each network element with information concerning configuration data of the network elements; providing each network element with information concerning criteria for triggering the mechanism; establishing an information exchange protocol comprising a set of messages and of rules; establishing a traffic rerouting method, wherein the configuration data include the ring map, the traffic map, the wavelength and the bit rate concerning every path.

Method for traffic protection in WDM fiber optic transport networks

A method of identifying the current route of paths on communications MS-SPRINGs is described. The method comprises the steps of providing the network manager with information relating to the Nominal Route of the at least one path; and providing the management system with information of current status of the at least one network element, and being characterized by comprising the steps of processing the information provided through steps a) and b) so as to calculate the current route of the at least one path. The invention further concerns a network manager able to carry out the various steps of the method.

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Corsico, Italy

Claudio De Girolamo