Allied Telesis AT-S25 - Manual (Page 86)

86
Changing the
Aging Time of the
MAC Address
Table
If a switch in a stack detects a packet with a new source MAC address,
the switch stores the MAC address in its address table. This means the
switch has learned about the device that sent packets to the switch. The
MAC address table is updated as new MAC addresses are detected. If a
MAC address listed in the address table does not appear on any port
after a specified period of time, the switch deletes that address from the
table. The default aging time is 300 seconds.
To specify a new aging time for the MAC address table, perform the
following procedure:
1. From the Main Menu, select the switch in the stack whose MAC aging
time you want to change.
Each switch in a stack can have a different MAC aging time.
2. From the Main Menu, select System Configuration.
The System Configuration menu in Figure 7 on page 39 is
displayed.
3. Select Default Aging Time.
The Default Aging Time prompt shown in Figure 40 is displayed.
Figure 40 Default Aging Time Prompt
4. Enter a new value (in seconds) in the type-in field. Press <Return> or
select Enter. The range is 0 to 999 seconds.
The new value is activated immediately.
Note
Entering a value of 0 (zero) deactivates the MAC aging time
parameter. MAC addresses continue to be added to the table until
the table is full. Once the table is full, any frame with a new MAC
address will be flooded to all appropriate ports.
5. Return to the Main Menu.