A router comprising an interface module (IM), having an optical path and an electrical path and a speed sensor coupled between an input of the router and an input of the IM. The speed sensor is adapted to receive a packet and detect a speed of the IM connection and in response to the speed of the IM...http://www.google.fr/patents/US7269348?utm_source=gb-gplus-shareBrevet US7269348 - Router having dual propagation paths for packets
