D-Link DGS-3200 SERIES Cli Manual page 437

DGS-3200 Series Layer 2 Gigabit Managed Switch CLI Manual
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
Who is 10.10.10.2?
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.
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