| 摘要 |
<p>A packet identifier module is configured for determining whether a received data packet originated from a router. If the packet identifier module identifies the received data packet as being from a network node other than the router, the switch module selectively stores the layer 2 address and the associated layer 3 address of the data packet as an associated layer 2-layer 3 address pair in an address table. The selective storing of the associated layer 2-layer 3 address is also referred to as learning the internet protocol (IP)-media access control association (MAC) of the data packet. By selectively learning the IP-MAC associations of selected data packets from the non-router ports, the likelihood of overflowing the address table is reduced. Furthermore, by using the learned IP-MAC associations, the network switch may switch layer 3 data packets bypassing the router and reducing latency.</p> |
