Patent ID: 8351337

Claim:
A network node for an internet protocol (IP)-based mobile backhaul network, comprising: an interface coupled to transmit a control message towards a destination node within the IP-based mobile backhaul network over a primary multi-segment pseudowire and a secondary multi-segment pseudowire and to receive respective response messages from intermediate nodes positioned between the network node and the destination node along the primary multi-segment pseudowire and the secondary multi-segment psuedowire, the control message being a multiprotocol label switching (MPLS) layer 3 message; and a processor coupled to receive the response messages and operable to extract a respective identifier from each of the response messages to determine a respective node identity corresponding to one of the intermediate nodes, the processor further operable to calculate a respective individual availability of the primary multi-segment pseudowire and the secondary multi-segment pseudowire based on the node identity of the intermediate nodes.