METHOD FOR PROTECTING A VIRTUAL CIRCUIT

摘要

The present invention relates to a method of setting up a first virtual circuit between a first input terminal apparatus and an output terminal apparatus, implemented by the first input terminal apparatus, comprising a step of sending a first message requesting the setting up of the first virtual circuit to a switch apparatus, the first virtual circuit to be set up consisting of a first link between the first input terminal apparatus and the switch apparatus and of a second link between the switch apparatus and the output terminal apparatus. In such a method, the first message requesting setup furthermore comprises a request to set up at least one backup virtual circuit consisting of the second link and of a third link to be set up between the switch apparatus and a second input terminal apparatus.