How are MAC addresses removed from a MAC address table?
A. They are removed automatically if they remain inactive for the duration of the switch aging timer.
B. They are removed automatically on a FIFO basis when the address-table limit has been reached.
C. They must be manually cleared from the table.
D. They are removed automatically if they remain inactive for the duration of the global MAC address timer.
A for me too… is aging time, never heard about global mac address timer
global-mac-table-aging-time use Juniper not Cisco
(On switches that run Junos OS with support for the ELS configuration style) Using the global-mac-table-aging-time statement in the [edit protocols l2-learning] hierarchy.
Juniper https://www.juniper.net/documentation/en_US/junos/topics/topic-map/mac-table-aging.html
A
The switch removes entries when their presence in the MAC address table exceeds the aging time.
https://www.arista.com/en/um-eos/eos-section-19-3-mac-address-table
answer A seems to be more accurate:
https://www.cisco.com/c/m/en_us/techdoc/dc/reference/cli/nxos/commands/l2/mac-address-table-aging-time.html