Allied Telesis AT-S20 - Manual (Page 87)

AT-S20 User’s Guide
6-13
Table 6-1 briefly lists the options in the Security/Source Address
Table menu. For complete definitions of this options, see the
sections that follow this table.
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The Source Address Table (SAT or MAC forwarding table) is a
database of MAC addresses and their associated port of entry
learned by the switch. The Source Address Learning Mode allows you
to control it is as a “secure” or “automatic” state.
Secure: Learning Off/Security On
In the “secure” mode, the learning feature is disabled and the source
address table is in a “locked” state. This setting is used when the MAC
address learning is completed and when any new MAC address
entries are to be entered manually. When the SAT is locked, no new
addresses will be learned. If a packet is received with an address that
is not already in the SAT, the packet is dropped and the new MAC
address is not learned.
Table 6-1 Security/Source Address Table
Options States Definition
Source Address
Learning Mode Automatic Source address learning is
enabled, and the intruder
protection is disabled.
Secure The source address table is
locked, and the intruder
protection is enabled.
Threshold Learning is enabled. Intruder
protection is enabled if
threshold is exceeded.
Intruder Protection Send Trap Trap is transmitted.
No Trap Trap is not transmitted when
an intruder is detected.
Disable Port The port is disabled when an
intruder is detected.
Port State
Unchanged The port remains ON when an
intruder is detected.