D-Link DGS-3208F Product Manual - Page 91

Custom FDB, Lock Address TableSTOPs Learning, Address Table Lookup Mode, MAC Address Age-out Time

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Gigabit Ethernet Switch User's Guide Figure 7-14. Bridge Address Table Configurations window ♦ Lock Address Table(STOPs Learning) This function is used mostly for security purposes. When the forwarding table is locked, the Switch will no longer learn the MAC addresses for new hosts. If your network configuration doesn't change, locking the forwarding table helps keep intruders off your network, since any packet coming from an unknown source address will be dropped by the Switch. ♦ Address Table Lookup Mode This setting allows the user to tailor the MAC address look-up procedure. Choices are Level 0, Level 1, Level 2, Level 3, Level 4, Level 5, Level 6, and Level 7. The higher the level, the more MAC addresses can be learned by the Switch. However, a side effect is that throughput will be degraded the higher the level you select. This setting will take effect after your system reboots. ♦ MAC Address Age-out Time Enter the desired MAC address age-out time in this field (10 to 1,000,000 seconds) . Custom FDB Figure 7-15. Static Forwarding Table window 84

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Gigabit Ethernet Switch User’s Guide
84
Figure 7-14.
Bridge Address Table Configurations window
♦
Lock Address Table(STOPs Learning)
This function is used mostly for security purposes. When the
forwarding table is locked, the Switch will no longer learn the MAC addresses for new hosts. If your
network configuration doesn’t change, locking the forwarding table helps keep intruders off your network,
since any packet coming from an unknown source address will be dropped by the Switch.
♦
Address Table Lookup Mode
This setting allows the user to tailor the MAC address look-up procedure.
Choices are
Level 0
,
Level 1
,
Level 2
,
Level 3
,
Level 4
,
Level 5
,
Level 6
, and
Level 7
. The higher the level, the
more MAC addresses can be learned by the Switch. However, a side effect is that throughput will be
degraded the higher the level you select. This setting will take effect after your system reboots.
♦
MAC Address Age-out Time
Enter the desired MAC address age-out time in this field (10 to 1,000,000
seconds) .
Custom FDB
Figure 7-15.
Static Forwarding Table window