To be able to transmit a response packet to the original request node after a bus ID/a device ID is replaced in the PCI-Express switch for a PCI-Express communication system, a unique node ID for indicating each node is set to the nodes. Additionally, it is confirmed whether or not the packet is transferred...http://www.google.fr/patents/US7765357?utm_source=gb-gplus-shareBrevet US7765357 - PCI-express communications system
