A METHOD AND A SYSTEM FOR MANAGING TRANSIT CONNECTIVITY FAILURES IN A IP/MPLS NETWORK, AND ACCESS NODE FOR SUCH A SYSTEM

摘要

A method and a system for managing transit connectivity failures in a IP/MPLS network, and access node for such a system The method comprises providing means to provide alternative connectivity, through a backup transit node, to one or more access nodes which have been affected by a transit connectivity failure, and requesting said alternative connectivity by each of said access nodes under a transit connectivity failure or by an intermediate node said access nodes are connected to. For a preferred embodiment, the transit level of said IP/MPLS network is designed as a single non-protected layer. The system and the access node are both arranged for implementing the method.