Allied Telesis AT-S62 - Manual (Page 328)

Chapter 24: MAC Address-based Port Security
328 Section VI: Port Security
Participating
This column applies only when the intrusion action on a port is set to
trap or disable. It does not apply when intrusion action is set to discard.
If this column contains No when intrusion action is set to trap or
disable, the port discards invalid packets, but it does not send the
SNMP trap or disable the port. When this column contains Yes, the
port sends a trap and/or is disabled after receiving an invalid frame.
MAC Limit
This column specifies the maximum number of dynamic MAC
addresses the port will learn. It only applies when a port is operating in
the Limited security mode.