User’s Manual of GS-5220 LCD Series
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The page includes the following fields:
Aging Configuration
By default, dynamic entries are removed from the MAC table after 300 seconds. This removal is also called aging.
Object Description
• Disable Automatic
Aging
Enables/disables the automatic aging of dynamic entries
• Aging Time
The time after which a learned entry is discarded. By default, dynamic
entries are removed from the MAC after 300 seconds. This removal is also
called aging.
(Range: 10-10000000 seconds; Default: 300 seconds)
MAC Table Learning
If the learning mode for a given port is grayed out, another module is in control of the mode, so that it cannot be
changed by the user. An example of such a module is the MAC-Based Authentication under 802.1X.
Object Description
• Auto
Learning is done automatically as soon as a frame with unknown SMAC is
received.
• Disable
No learning is done.
• Secure
Only static MAC entries are learned, all other frames are dropped.
Note: Make sure that the link used for managing the switch is added to
the Static Mac Table before changing to secure learning mode, otherwise
the management link is lost and can only be restored by using another
non-secure port or by connecting to the switch via the serial interface.
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