Method and network node for determining multi-path transmission paths in a packet- switched communication network

A method of determining multipath transmission paths between an input network node and a target network node in a packet switching communication network comprising a number of network nodes, the communication network provided for transmitting data packets via a plurality of connecting paths linking the network nodes, the method comprising:

• determining at least two disjunct transmission paths between the input and target network nodes;
• setting up direct transmission paths between network nodes contained in the disjunct transmission paths, the direct transmission paths oriented towards the target network node, such that at least two paths from a network node of a disjunct transmission path to the target network node are provided;
• and
• establishing further transmission paths for such network nodes of the disjunct transmission paths not exhibiting two paths from such network nodes to the target network node, the further transmission paths leading towards the target network node via other network nodes.

A network node for a packet switching communication network, the network node configured to:

• determine at least two disjunct transmission paths between an input network node and a target network node of the network;
• set up direct transmission paths between network nodes contained in the disjunct transmission paths, the direct transmission paths oriented towards the target network node, such that at least two paths from a network node of a disjunct transmission path to the target network node are provided;
• and
• establish further transmission paths for such network nodes of the disjunct transmission paths not exhibiting two paths from such network nodes to the target network node, the further transmission paths leading towards the target network node via other network nodes.