iES12G
User’s
Manual
UM-iES12G-1.72.2-EN.docx
Pages 142 of 166
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Aging Configuration
By default, dynamic entries are removed from the MAC after 300 seconds. This removal is called
aging.
You can configure aging time by entering a value in the box of
Age Time.
The allowed range is 10
to 1000000 seconds. You can also disable the automatic aging of dynamic entries by checking
Disable Automatic Aging
.
MAC Table Learning
If the learning mode for a given port is grayed out, it means another module is in control of the mode,
and thus the user cannot change the configurations. An example of such a module is MAC-Based
authentication under 802.1X.
The port can be configures to learn dynamically the MAC address based upon the following settings:
Figure 137 - MAC Address Table Learning
Label
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 the link used for managing the switch is added to the static Mac table
before changing to secure learning mode, otherwise the management link will be lost and
can only be restored by using another non-secure port or by connecting to the switch via
the serial interface.
Static MAC Table Configurations
The static entries in the MAC table are shown in this table. The static MAC table can contain up to
64 entries. The entries are for the whole stack, not for individual switches. The MAC table is sorted
first by VLAN ID and then by MAC address.
Label
Description
Delete
Check to delete an entry. It will be deleted during the next save.
VLAN ID
The VLAN ID for the entry.
M AC Address
The MAC address for the entry.
Port Members
Checkmarks indicate which ports are members of the entry.
Check or uncheck to modify the entry.
