In prior art, the provision of back-up circuits for ATM cells in ring-type structures is efficiently controlled using linear structures. According to the invention, this function is extended to ring-type MPLS network architectures as follows: linear MPLS structures are formed into a ring-type MPLS structure...http://www.google.fr/patents/US6704279?utm_source=gb-gplus-shareBrevet US6704279 - Circuit arrangement for providing a back-up circuit for transmission devices in ring architectures that route MPLS packets
Circuit arrangement for providing a back-up circuit for transmission devices ...
