Patent ID: 8724451

Claim:
A method for establishing a backup pseudo-wire intended to be used in the case of failure of at least one first pseudo-wire established between a first item of input terminal equipment and an item of output terminal equipment, run by an item of switching equipment, comprising: a step of receiving a first establishment request message of the first pseudo-wire, the first pseudo-wire to be established comprising a first link between the first item of input terminal equipment and the item of switching equipment and a second link between the item of switching equipment and the item of output terminal equipment, wherein the first establishment-request message comprises: an identifier of said item of switching equipment, and a request to establish the backup pseudo-wire comprising the second link and of a third link to be established between the item of switching equipment and a second item of input terminal equipment, and on receipt of said first message, a step of establishing the backup pseudo-wire comprising a step of transmitting a second message requesting establishment of the third link to the second item of input terminal equipment, and a step of establishing the first pseudo-wire comprising a step of transmitting a third message requesting establishment of the second link to the item of output terminal equipment.