ex-3300 aging time and show ethernet-switching table

Hi All,

I would like to understand how to read the value "Age" when I run the command show ethernet-switching table on ex-3300.

From here: https://www.juniper.net/documentation/en_US/junos/topics/reference/configuration-statement/mac-table-aging-time-bridging.html

Default
Entries remain in the Ethernet switching table for 300 seconds.

Now, if i run the command

show ethernet-switching table vlan 123

I see for example

show ethernet-switching table vlan 123
Ethernet-switching table: 82 unicast entries
  VLAN              MAC address       Type         Age    Interfaces
  vlan123           *                 Flood                            - All-members
  vlan123           00:xx:xx:xx:xx:xx Learn            0           xe-0/1/2.0
  vlan123           00:yy:yy:yy:yy:yy Learn          0          xe-0/1/2.0

The "Age" field is set to 0 but the mac-address 00:xx:xx:xx:xx:xx seems to me that is not removed from mac addrees table and keep on appearing in the above output.

Reading documentation i was expecting that the switch after 300 second is simply removing the mac that so is considered inactive so i would not see it again the ethernet-swithcing table output. Am I missing something?

Thanks.