System communications network to distribute multi-layer multicast services and method for distribution of such

A communication network system Multilayer to distribute multicast service and a method for distribution of this type.The system comprises a network layer switched optical transport as WSON, and a network layer electronic packet switched, as IP / MPLS, wherein the network layer switched optical transport transports services multicast streams and the network layer electronic packet switched is a reservoir layer mechanism dynamic restoration for recovery from one or more failures occurring in the layer of optical transport network switched. The method comprises transporting services multicast flows through the layer of optical transport network switched, and performing a recovery from one or more faults that occur in the layer of optical transport network switched by a dynamic restoration carried out using said network layer electronic packet switched as reservoir layer.