A model of fault-tolerant routing multicast and broadcast flows in MPLS-network is proposed in the paper. Threading model represented by algebraic equations and inequalities, which are characterized by the state of MPLS-network, i.e. load its links. In the proposed model is the possibility to implement in accordance with the concept of Fast ReRoute three basic backup scheme: channel protection, node and tree routes. Calculated on the example demonstrates the ability of the proposed a faulttolerant routing model.
flow-based model, fault tolerance, routing, Fast ReRoute, backup scheme, multicast flow