DES-3028 DES-3028P DES-3028G DES-3052 DES-3052P Layer 2 Fast Ethernet Switch CLI Reference Manual
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When PC B replies to the query, “Destination Address” in the Ethernet frame it will change to PC A’s MAC address. The “Source
Address” will be changed to PC B’s MAC address (see Table – 4).
Destination address
00-20-5C-01-11-11
Source address
00-20-5C-01-22-22
Ether-type ARP
FCS
Table – 4 (Ethernet frame format)
The switch will also examine the “Source Address” of the Ethernet frame and if it finds that the address is not in the Forwarding
Table, the switch will learn PC B’s MAC and update its Forwarding Table.
Port1 00-20-5C-01-11-11
Port2 00-20-5C-01-22-22
Forwarding Table