| abstract |
A kind of network components includes：Receiver, it is used for from local host Rreceive output frame；Logic circuit, it is used for the destination address of destination host in the output frame（DA）The DA of the target location of the destination host is mapped to, and the output frame is encapsulated using the DA of the target location；And transmitter, it is used to receive pre-packaged output frame from local switch, and the pre-packaged output frame is sent to the gateway on target location, wherein described transmitter does not encapsulate the frame received from local switch, and de-encapsulation source is from the input frame using local host as destination of remote gateway. |