A method of linking at least two network switches is disclosed, wherein each network switch switches data traffic of a plurality of devices, through a plurality of couplings. The method comprises the steps of generating a data stream including an identifier to be sent from a first to a second network...http://www.google.de/patents/US7307995?utm_source=gb-gplus-sharePatent US7307995 - System and method for linking a plurality of network switches
