| 摘要 |
<p>A packet forwarding device that maintains packet sequence before and after packet forwarding is provided. A cache stores forwarding information. A forwarding unit refers to the forwarding information to attempt to determine a forwarding destination of a received packet, sends the packet to a control unit irrespective of whether or not the forwarding destination of the packet could be determined, and in cases in which the forwarding destination of the packet could not be determined, requests the control unit to determine the forwarding destination of the packet. The control unit receives the packet from the forwarding unit, and in cases in which the control unit has been requested by the forwarding unit to determine the forwarding destination of the packet, determines the forwarding destination of the packet, sends the packet to the forwarding destination and stores the forwarding destination as forwarding information in the cache, and in other cases, sends the packet to the forwarding destination determined by the forwarding unit.</p> |
