| 摘要 |
<p>A network interface device interfaces between a host device and a network by receiving packets over the network and passing at least some of those packets to ports of the host device is disclosed. Each packet may comprise a control section having one or more fields indicative of the type and data protocol of the packet, a source address field indicative of the source address of the packet, a destination address field indicative of the destination address of the packet, a source port field indicative of the source address of the packet and a destination port field indicative of the destination address of the packet. The network device comprises a data store for storing specifications for packets that are to be passed to the host device. A packet selection unit is provided and is capable of identifying the protocol of a received packet and operable in a different modes.</p> |
