Patent ID: 8619628

Claim:
A method of enhanced reliability routing within a system comprising one or more networks including several nodes connected together by communication means, said system having a transmission network access (TNA) charged with transmitting on a physical medium, data to a next network interconnection node (NIN), said system using a link-state routing protocol for constructing a global topology of the nodes within the system, wherein said method of enhanced reliability routing determines a logical topology of network interconnection nodes (NINs) by the following steps: discovering a neighbourhood using a Module NIN_TOPO_ 01 as a Neighbourhood Discovery Module by virtue of intrinsic functions of the one or more networks; smoothing a neighbourhood using a Smoothing Module: NIN 13 TOPO_ 02 using information provided by the TNA to improve stability of the link-state routing protocol; distributing the neighbourhood to the NINs using a Distribution Module NIN_TOPO_ 03 ; relaying of the information associated with a node including neighbours, links and their characteristics denoted as Sig_Neighbourhoods by a subset of the NIN nodes being a relay of Sig_Neighbourhoods using a Relay Module NIN_TOPO_ 04 ; enhancing hop by hop a reliability of a transmission of the Sig_Neighbourhoods between the various nodes using an Enhancement Module NIN_TOPO_ 05 ; transmitting the Sig_Neighbourhoods in a point-to-multipoint mode using a Transmission Module NIN_TOPO_ 06 ; announcing oriented characteristics of logical links in the logical topology solely by source routers of the logical links using an Announcement Module NIN_TOPO_ 07 ; marking of signalling data so as to manage non-sequencing in reception associated with the transmitting using a Marking Module NIN_TOPO_ 08 ; and calculating the global topology using a Calculation Module NIN_TOPO_ 09 .