Allied Telesis AT-S60 - Manual (Page 476)

Chapter 21: Port Security
Section V: Security Features 476
9. If you selected the Limited security mode for the port, do the
following to specify the maximum number of dynamic MAC
addresses you want the port to be able to learn:
a. Type 4 to select MAC Limit.
The following prompt appears:
Enter port security threshold: [1 to 256] -> 100
b. Enter the maximum number of dynamic MAC addresses you want
the port to learn. The range is 1 to 256. The default is 100.
Note
The D - Select Default Port Security option in the menu sets the
security mode for the port to the default value of Automatic.
10. After making changes, type R until you return to the Main Menu. Then
type S to select Save Configuration Changes.
11. If you configured a port with the Secure security level, you must enter
the static MAC addresses of the end nodes that can send packets
through the port. For instructions on how to add static MAC
addresses, refer to Adding Static Unicast and Multicast MAC
Addresses on page 122.