The GFP frame transfer apparatus according to the present invention includes a GFP path frame formation unit (7, 8, 11, 13) that stores a label corresponding to a path ID defined to uniquely specify a path from the Ingress node to Egress node within a GFP network in a predetermined field of the extension...http://www.google.fr/patents/US20020083190?utm_source=gb-gplus-shareBrevet US20020083190 - Apparatus and method for GFP frame transfer