Patent ID: 7388827

Claim:
A method for dissemination of information about faults in spans that interconnect nodes in a telecommunication mesh-type network, the method comprises creating a Failure Updating channel (FU channel) in the network and circulating Failure Updating messages (FU messages) via said FU channel between the network nodes, wherein each of the FU messages is issued by a particular node, disseminated to all its adjacent nodes and carries information currently available to said particular node about all spans in the network, by presenting status indications of the spans in respective information slots of the FU message, wherein said FU messages comprise the following message types: an input FU message being an FU message entering a network node from an adjacent node during a time period t, and carrying status information on all spans of the network available to the adjacent node; an output FU message being an FU message issued by the network node after the time period t and comprising updated status information on all spans of the network which has become available to the network node during the time period t; and a previous output FU message being an FU message issued by the network node during the time period t, and comprising the previous status information on all network spans, known to the node by the time period t.