Route deflection of the method in hierarchical structured networks

摘要

A method for rerouting a connection set up along a path calculated between a first node (A.1.2) and a second node (C.2), of a switching network structured into a plurality of peer groups at at least two hierarchical levels, implies that within a peer group along said path, of not the highest hierarchical level, a local alternative path within this peer group is established between an entering border node and an outgoing border node of said peer group, based on path information stored within this entering border node during set up of the connection, and including an identifier of said outgoing border node of said peer group. In a variant method this path information is stored within each entering border node of each peer group, thereby allowing the local alternative path to be established in the lowest level peer group possible.