Patent Document ID: 9191307
Application ID: 12811820
Patent Flag: 1

Claim One:
1. A method for fast Connectivity Fault Management (CFM) of a service-network comprising a plurality of edge service-nodes and intermediate service-nodes in the realm of Carrier Ethernet, comprises steps of: a) learning a spanning tree topology of the service-network; b) exchanging fast Connectivity Check Messages (Fast-CCM)s between adjacent intermediate service-nodes of the spanning tree; c) detecting a fault in the service-network if the fast CCM is not received by the adjacent intermediate service-nodes within pre-specified time intervals; d) terminating process of exchanging the Fast CCMs between the adjacent intermediate service-nodes upon detecting the fault in the service network; e) generating two notification messages, wherein one of the two notification messages is generated by the adjacent intermediate service node located on one side of the fault in the service network and other notification message is generated by another adjacent intermediate service node located on another side of the fault in the service network; and d) pro-actively notifying each service-node in the service network about the fault in the service network, by the adjacent intermediate service-nodes located on either side of the fault in the service network, by sending the two notification messages, wherein the adjacent intermediate service node located on one side of the fault in the service network directly sends one of the two notification messages to one or more services nodes reachable by the adjacent intermediate service node and another adjacent intermediate service node located on another side of the fault in the service network directly sends the another notification message to one or more service nodes reachable by the another adjacent intermediate service node.