In one embodiment, an intermediate node includes one or more active forwarding planes and one or more redundant forwarding planes. The intermediate node may also include one or more active control planes and one or more redundant control planes. A test packet is generated, in some cases by a redundant...http://www.google.fr/patents/US7289434?utm_source=gb-gplus-shareBrevet US7289434 - Method for verifying function of redundant standby packet forwarder
Method for verifying function of redundant standby packet forwarder
