Allied Telesis AT-FS202SC/FS1 - Manual (Page 24)

Chapter 1: Overview
14
MAC Address Table
Up to 512 MAC addresses can be stored in the converter’s MAC address
table. The converter’s self-learning feature will learn all new addresses in
real-time after power-up. If the source address of an incoming packet is
not found in the MAC address table, the converter will update the table
with the new address.
The converter also has an automatic address aging feature that will
delete a source address from the table if it has not seen a frame from the
end-node with that address within five minutes. This prevents the table
from becoming filled with addresses of end-nodes that are no longer
active.
The converter forwards all multicast, broadcast, and unlearned unicast
packets when the MAC address table has exceeded its storage limit.