DGS-3200 Series Layer 2 Gigabit Ethernet Managed Switch
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Port1 00-20-5C-01-11-11
In addition, when the switch receives the broadcasted ARP request, it will flood the frame to all ports except the source port, port
1 (see Figure-2).
Figure-2
When the switch floods the frame of ARP request to the network, all PCs will receive and examine the frame but only PC B will
reply the query as the destination IP matched (see Figure-3).
Figure-3
When PC B replies to the ARP request, its MAC address will be written into “Target H/W Address” in the ARP payload shown in
Table-3. The ARP reply will be then encapsulated into an Ethernet frame again and sent back to the sender. The ARP reply is in a
form of Unicast communication.
Forwarding Table
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