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DES-3810 Series Layer 3 Managed Ethernet Switch Web UI Reference Guide
Figure 6 - ARP Payload
When PC B replies to the query, the "Destination Address" in the Ethernet frame will be changed to PC A's MAC
address. The "Source Address" will be changed to PC B's MAC address (see Figure 7).
Figure 7 - Ethernet Frame Format
The switch will also examine the "Source Address" of the Ethernet frame and find that the address is not in the
Forwarding Table. The switch will learn PC B's MAC and update its Forwarding Table.
Figure 8 – Forwarding Table
Figure 9 – Connection Established
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