Packet Rerouting Techniques in a Packet-Switched Communication Network

摘要

The present disclosure relates to preparation of nodes in a packet-switched communication network for enabling packet rerouting upon a failure in the network. The rerouting occurs along a detour defined by a Multiple Redundant Tree (MRT). A method aspect of this disclosure comprises computing, by a node of a set of connected nodes, at least one first MRT pair for a first MRT area to which a node is assigned. The first MRT area comprises a first subset of connected nodes. The method further comprises computing, by the node, at least one second MRT pair for a second MRT area to which the node is assigned. The second MRT comprises a second subset of the connected nodes.