Chapter 43 ARP Learning
other devices in the same network to update their ARP table with the new mapping information.
In
When the Switch is in
Therefore in the following example, the Switch can learn host A’s MAC address from the ARP request sent by host A. The Switch then forwards host B’s ICMP reply to host A right after getting host B’s MAC address and ICMP reply.
AB
ARP Request
ARP Reply
ICMP Request
ICMP Reply
ARP Request
ARP Reply
ICMP Request
ICMP Reply
| 383 |
|
|