A method is described for fast rerouting, in case of a fault, packets of
MPLS traffic in a ring-like network configuration, where the MPLS traffic
is formed by one or more Label Switched Paths (LSPs) entitled to
protection. The method comprises rerouting the MPLS packets to a
protection path in the ring, providing the rerouted MPLS packets with
additional labels to their respective label stacks, and then detecting
the additional labels at network nodes included in the protection path.
Detection of the additional labels further allows determining egress
nodes of the rerouted MPLS packets and outputting the rerouted MPLS
packets at their corresponding egress points from the protection path.