Disclosed herewith is a network that can connect as many VPNs as possible to itself. In order to realize such a network, in the frame transfer method of the present invention, which enables a transfer path to be formed between nodes in the network so as to transfer frames, a terminal for transmitting...http://www.google.fr/patents/US8027348?utm_source=gb-gplus-shareBrevet US8027348 - Frame transfer method and frame transfer device
